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XRAY - Master X-Ray Catalog |
HEASARC Archive |
Overview
The XRAY database table contains selected parameters from almost all HEASARC X-ray catalogs that have source positions located to better than a few arcminutes. The XRAY database table was created by copying all of the entries and common parameters from the tables listed in the Component Tables section. The XRAY database table has many entries but relatively few parameters; it provides users with general information about X-ray sources, obtained from a variety of catalogs. XRAY is especially suitable for cone searches and cross-correlations with other databases. Each entry in XRAY has a parameter called 'database_table' which indicates from which original database the entry was copied; users can browse that original table should they wish to examine all of the parameter fields for a particular entry. For some entries in XRAY, some of the parameter fields may be blank (or have zero values); this indicates that the original database table did not contain that particular parameter or that it had this same value there.The HEASARC in certain instances has included X-ray sources for which the quoted value for the specified band is an upper limit rather than a detection. The HEASARC recommends that the user should always check the original tables to get the complete information about the properties of the sources listed in the XRAY master source list.
Bulletin
The XRAY master catalog table was last updated on 3 October 2024.Provenance
This master catalog is updated periodically whenever one of the component database tables is modified or a new component database table is added.Component Tables
The XRAY database table was created by copying all of the entries and common parameters from the following database tables:* HMXBCAT - High-Mass X-Ray Binaries Catalog (Liu et al.) * LMXBCAT - Low-Mass X-Ray Binaries Catalog (Liu et al.) * MAGHMXBCAT - Magellanic Clouds High-Mass X-Ray Binaries Catalog (Liu et al.) * RITTERLMXB - Ritter Low-Mass X-Ray Binaries Catalog (Ritter, Kolb) * SFGALHMXB - Star-Forming Galaxies High-Mass X-Ray Binaries Catalog (Mineo et al.) * ULXNGCAT - Ultraluminous X-Ray Sources in Nearby Galaxies Catalog (Swartz et al.) * ULXRBCAT - Ultraluminous X-Ray Sources in External Galaxies Catalog (Liu, Mirabel) * VLULXCAT - Extremely Luminous X-Ray Source Candidates Catalog (Gong et al.) * XRAYSELBLL - X-Ray Selected BL Lac Objects Catalog (Kapanadze) * XRBCAT - X-Ray Binaries Catalog * BAXGALCLUS - BAX X-Ray Galaxy Clusters and Groups Catalog (Sadat et al.) * A2PIC - HEAO 1 A2 Piccinotti Catalog * A4 - HEAO 1 A4 Catalog of High-Energy X-Ray Sources * EINGALCAT - Einstein Observatory Galaxies Catalog * EINGALCLUS - Einstein Observatory Clusters of Galaxies Catalog * EINOPSLGAL - Einstein Survey of Optically Selected Galaxies * EINSTEIN2E - Einstein 2E Catalog of IPC X-Ray Sources * EMSS - Einstein Extended Medium Sensitivity Survey * EXSS - Einstein Extended Source Survey * HRICFA - Einstein High Resolution Imager (HRI) Source List * HRIDEEP - Einstein HRI Deep Survey Source Positions * IPC - Einstein Imaging Proportional Counter (IPC) Source List * IPCDEEP - Einstein IPC Deep Survey Source Positions * IPCOSTARS - Einstein IPC Measures of Count Rates for O Stars * IPCSLEW - Einstein IPC Slew Survey Catalog * IPCULTSOFT - Einstein IPC Ultrasoft Sources Catalog * LMCXRAY - Einstein IPC Discrete X-Ray Sources in the Direction of the LMC * SMCXRAY - Einstein IPC Discrete X-Ray Sources in the Direction of the SMC * CMA - EXOSAT Channel Multiplier Array (CMA) 'Good' Source List * EXOHGLS - EXOSAT CMA High Galactic Latitude Survey * BHRFSCID - Byurakan/Hamburg/ROSAT Catalog of Optical IDs * BMWHRICAT - Brera Multi-scale Wavelet (BMW) ROSAT HRI Source Catalog * CHASFRXRAY - ROSAT All-Sky Survey: Chamaeleon Star Forming Region Study * CMAR1XRAY - ROSAT PSPC Catalog of Canis Major R1 X-Ray Sources (Gregorio-Hetem et al.) * DXRBS - ROSAT Deep X-Ray Radio Blazar Survey (Perlman et al. 1998; Landt et al. 2001) * ETGALXRAY - Early-Type Galaxies X-Ray Luminosities Catalog (O'Sullivan et al.) * GALCENPSPC - ROSAT PSPC Galactic Center Soft X-Ray Source Catalog (Sidoli et al.) * HRASSCAT - Hamburg/ROSAT All-Sky Survey X-Ray Source Catalog * LMCHRIXRAY - ROSAT HRI Catalog of LMC X-Ray Sources (Sasaki et al.) * LMCROSXRAY - ROSAT PSPC Catalog of LMC X-Ray Sources (Haberl & Pietsch) * M31ROSXRAY - ROSAT PSPC M 31 Source Catalog * MDWF10PCUX - UV/X-Ray Data for M Dwarfs Within 10 Parsecs (Stelzer et al. 2013/2014 Erratum) * NORAS - Northern ROSAT All-Sky (NORAS) Galaxy Cluster Survey Catalog * NWAYAWGROS - AllWISE Counterparts and Gaia Matches to ROSAT/2RXS X-Ray Sources (Salvato et al. 2018) * ORIONXRAY - ROSAT Survey of the Orion Nebula * PLEIADXRAY - ROSAT PSPC Catalog of the Pleiades (Micela et al. 1996) * RASS2FXRAY - ROSAT All-Sky Survey Two Selected Fields X-Ray Source Catalog (Greiner, Richter) * RASS2MASS - ROSAT All-Sky Survey BSC/2MASS PSC Cross-Associations XID II Catalog (Haakonsen, Rutledge) * RASS2RXS - Second ROSAT All-Sky Survey Point Source Catalog (Boller et al. 2016) * RASS6DFGS - ROSAT All-Sky Survey/6dF Galaxy Survey Catalog of X-Ray Selected AGN (Mahony et al.) * RASSAEQSO - ROSAT All-Sky Survey/ASIAGO-ESO QSO Survey Catalog (Grazian et al.) * RASSASASEB - RASS/All-Sky Automated Survey Eclipsing Binaries Catalog (Szczygiel et al.) * RASSASASPV - All-Sky Automatic Survey (ASAS) Photometry of ROSAT All-Sky Survey Sources (Kiraga M. 2012) * RASSBSC - ROSAT All-Sky Survey Bright Source Catalog * RASSBSCPGC - ROSAT All-Sky Survey Bright Source Catalog/Catalog of Principal Galaxies Matches (Zimmermann et al.) * RASSCNDINS - ROSAT All-Sky Survey Candidate Isolated Neutron Stars (Turner et al.) * RASSCNS3 - ROSAT All-Sky Survey: Nearby Stars * RASSDSSAGN - ROSAT All-Sky Survey and SDSS Sample of X-Ray Emitting AGN * RASSDSSTAR - ROSAT All-Sky Survey and SDSS Sample of X-Ray Emitting Stars (Agueros et al.) * RASSDWARF - ROSAT All-Sky Survey: A-K Dwarfs/Subgiants * RASSEBCS - ROSAT All-Sky Survey Extended Brightest Cluster Sample * RASSFIRST - ROSAT All-Sky Survey Single FIRST Matches Catalog (Brinkmann et al.) * RASSFSC - ROSAT All-Sky Survey Faint Source Catalog * RASSGIANT - ROSAT All-Sky Survey: Giants & Supergiants * RASSHGSFT2 - ROSAT All-Sky Survey: Soft High Galactic-Latitude X-Ray Sources 2 (Beuermann et al. 1999) * RASSHGSOFT - ROSAT All-Sky Survey: Soft High Galactic-Latitude X-Ray Sources (Thomas et al. 1998) * RASSNORSAM - ROSAT All-Sky Survey Completely Identified Northern Sample Catalog * RASSOB - ROSAT All-Sky Survey: OB Stars * RASSSDSSGC - ROSAT All-Sky Survey and Sloan Digital Sky Survey DR7 Galaxy Clusters (Wang L. et al. 2014) * RASSUSNOID - ROSAT All-Sky Survey Bright Source Catalog USNO A2 Cross-Associations Catalog (Rutledge et al.) * RASSWD - ROSAT All-Sky Survey: White Dwarfs * RBS - ROSAT Bright Survey (Schwope et al.) * RBSCNVSS - ROSAT All-Sky Survey/NVSS Bright X-Ray Source Sample * REFLEX - ROSAT-ESO Flux-Limited X-Ray (REFLEX) Galaxy Cluster Survey * RIXOS - ROSAT International X-Ray/Optical Survey Source Catalog * ROMABZCAT - Roma-BZCAT Multi-Frequency Catalog of Blazars (Massaro et al.) * ROS400GCLS - ROSAT PSPC 400 Square Degree Galaxy Cluster Catalog (Burenin et al.) * ROSATHARD - ROSAT Hard-Spectrum X-Ray Source Catalog (Page et al.) * ROSATRLQ - ROSAT Radio-Loud Quasars Catalog * ROSATRQQ - ROSAT Radio-Quiet Quasars Catalog * ROSGALCLUS - ROSAT PSPC Catalog of Clusters of Galaxies * ROSHRI - ROSAT Results Archive Sources for the HRI ('Good' Sample) * ROSNEPAGN - ROSAT North Ecliptic Pole Survey Active Galactic Nuclei Catalog * ROSNEPXRAY - ROSAT North Ecliptic Pole Survey X-Ray Source Catalog * ROSPSPC - ROSAT Results Archive Sources for the PSPC ('Good' Sample) * ROSPSPCF - ROSAT Results Archive Sources for the PSPC with Filter ('High Confidence' Sample) * ROXA - ROXA (Radio-Optical-X-ray at ASDC) Blazars Catalog (Turriziani et al.) * SMCROSXRAY - ROSAT PSPC Survey of the Small Magellanic Cloud * SMCROSXRY2 - ROSAT PSPC Catalog of SMC X-Ray Sources (Haberl et al.) * W2RAGNCAT - WISE/2MASS/RASS (W2R) AGN Sample Catalog (Edelson, Malkan) * WARPS - Wide Angle ROSAT Pointed Survey, First Phase (WARPS-I) (Perlman et al.) * WARPS2 - Wide Angle ROSAT Pointed Survey, Second Phase (WARPS-II) Clusters Catalog (Horner et al.) * WGACAT - ROSAT PSPC White, Giommi, and Angelini 'Good' Source Catalog * ASCAEGCLUS - ASCA Elliptical Galaxies and Galaxy Clusters Catalog (Fukazawa et al.) * ASCAGIS - ASCA Gas Imaging Spectrometer (GIS) Source Catalog (Ueda et al.) * ASCAGPS - ASCA Galactic Plane Survey of Faint X-Ray Sources (Sugizaki et al.) * ASCALSS - ASCA Large Sky Survey (Ueda et al.) * ASCASIS - ASCA Solid-State Imaging Spectrometer (SIS) Source Catalog (Gotthelf, White) * TARTARUS - Reduced ASCA AGN Data (Version 3.1) (Turner et al.) * SAX2TO10 - BeppoSAX 2-10 keV Survey (Giommi et al.) * SAXHELLASR - BeppoSAX High-Energy Large Area Survey (HELLAS) Radio Source Catalog (Ciliegi et al.) * SAXWFCCAT - BeppoSAX Wide Field Camera X-Ray Source Catalog (Verrecchia et al.) * SAXWFCCAT2 - BeppoSAX Wide Field Camera Unbiased X-Ray Source Catalog (Capitanio et al.) * AEGISX - AEGIS-X Chandra Extended Groth Strip X-Ray Point Source Catalog (Laird et al.) * AEGISXDCXO - AEGIS-X Deep Survey Chandra X-Ray Point Source Catalog (Nandra et al.) * AKNEPDFCXO - Akari North Ecliptic Pole Deep Field Chandra X-Ray Point Source Catalog (Krumpe et al.) * ARCQUINCXO - Arches and Quintuplet Clusters Chandra X-Ray Point Source Catalog (Wang et al.) * BMWCHANCAT - Brera Multi-scale Wavelet (BMW) Chandra Source Catalog * CANDELSCXO - CANDELS H-band Selected Chandra Source Catalog (Cappelluti et al.) * CARGM31CXO - Carina Nebula Gum 31 Chandra X-Ray Point Source Catalog (Preibisch et al.) * CARINACXO - Carina Nebula Chandra X-Ray Point Source Catalog (Broos et al.) * CBFGRXECXO - Chandra Bulge Field X-Ray Point Source Catalog (Morihana et al.) * CCOSMOSCAT - Chandra COSMOS (C-COSMOS) Survey X-Ray Point Source Catalog (Elvis et al.) * CCOSRSSFAG - Chandra COSMOS Radio-Selected Star-Forming Galaxies and AGN Catalog (Ranalli et al.) * CDFN2MSNEW - Chandra Deep Field North 2-Megasecond Improved Point Source Catalog (Xue et al.) * CDFSAGNCXO - Chandra Deep Field South AGN Spectral Properties Catalog (Tozzi et al.) * CENACXO - Centaurus A Galaxy Chandra X-Ray Point Source Catalog (Kraft et al.) * CEPBOB3CXO - Cep B/OB3 Star-Forming Region Chandra X-Ray Point Source Catalog (Getman et al.) * CG12CXO - CG 12 Chandra X-Ray Point Source Catalog (Getman et al.) * CHAINTHCXO - Chamaeleon I North Cloud Chandra X-Ray Point Source Catalog (Feigelson, Lawson) * CHAMPHXAGN - CHAMP (Chandra Multiwavelength Project) Hard X-Ray Emitting AGN (Silverman et al.) * CHAMPLANE - Chandra Multiwavelength Plane Survey Optical ID Catalog (Koenig et al.) * CHAMPLANEX - ChaMPlane Galactic Bulge and Center X-Ray Source Catalog (Hong et al.) * CHAMPPSC - Chandra Multiwavelength Project (ChaMP) Point Source Catalog (Kim et al.) * CHAMPSDSSA - CHAMP/SDSS Nearby Low-Luminosity AGN Catalog (Constantin et al.) * CHANDFN2MS - Chandra Deep Field North 2-Megasecond Catalog (Alexander et al.) * CHANDFS1MS - Chandra Deep Field South 1-Megasecond Catalog (Giacconi et al.) * CHANDFS2MS - Chandra Deep Field South 2-Megasecond Catalog (Luo et al.) * CHANDFS4MS - Chandra Deep Field South 4-Megasecond Catalog (Xue et al.) * CHANDFS7MS - Chandra Deep Field South 7-Megasecond Catalog (Luo et al.) * CHANEXTDFS - Chandra Extended Deep Field South Pt Source Catalog (Lehmer et al.) * CHANGBSCAT - Chandra Galactic Bulge Survey X-Ray Point Source Catalog (Jonker et al.) * CHANNSGPSC - Chandra Nearby Spiral Galaxies Point Source Catalog (Kilgard et al.) * CHANSEXSI - Chandra Serendipitous Extragalactic X-Ray Source ID Catalog (Harrison et al.) * CHANSNGCAT - Chandra ACIS Survey for X-Ray AGN in Nearby Galaxies (She et al. 2017) * CHANTYPGPR - Chandra Typical Galactic Plane Region Point Source Catalog (Ebisawa et al.) * CHANULXCAT - Chandra Archive Of Galaxies Ultraluminous X-Ray Source Catalog (Swartz et al.) * CHESSCAT - ChaMP Extended Stellar Survey (ChESS) X-Ray Catalog (Covey et al.) * CHICAGOCXO - ChIcAGO Survey Chandra X-Ray Source Catalog (Anderson et al.) * CHNGPSCLIU - Chandra ACIS Survey of Nearby Galaxies X-Ray Point Source Catalog (Liu) * CHPNGPTSRC - Chandra Nearby Galaxies Point Source Catalog (Colbert et al.) * CLANS - Chandra Lockman Area North Survey (CLANS) X-Ray Source Catalog (Trouille et al.) * CLASXS - Chandra Large-Area Synoptic X-Ray Survey of Lockman Hole-NW (Yang et al.) * CLSCAT - Chandra Legacy Survey (CLS) Catalog (Civano et al.) * COUP - Chandra Orion Ultradeep Point Source Catalog (Getman et al.) * CR261CXO - Collinder 261 Chandra X-Ray Point Source Catalog (Vats S., van den Berg M. 2017) * CSC - Chandra Source Catalog (Evans et al.) * CXOGSGSRC - Chandra ACIS GSG Point-Like X-Ray Source Catalog (Wang et al.) * CXOXASSIST - Chandra XAssist Source List (Ptak, Griffiths et al.) * CYDER - Calan-Yale Deep Extragalactic Research Survey X-Ray Source Catalog (Treister et al.) * CYGOB2CXO - Cygnus OB2 Association Chandra X-Ray Point Source Catalog (Albacete Colombo et al.) * CYGOB2CXO2 - Cygnus OB2 Association Chandra X-Ray Point Source Catalog 2 (Wright, Drake) * CYGTEVCXO - Cygnus TeV Source Chandra X-Ray Point Source Catalog (Butt et al.) * ECDFSCXO - Extended Chandra Deep Field-South X-Ray Point Source Catalog (Virani et al.) * ECDFSNEW - Extended Chandra Deep Field South 250-ks Improved Point Source Catalog (Xue et al.) * ELAISCXO - ELAIS N1 and N2 Fields Chandra X-Ray Point Source Catalog (Manners et al.) * ETGALCXO - Early-Type Galaxies Chandra X-Ray Point Source Catalog (Humphrey, Buote) * FORNAXACXO - Fornax A (NGC 1316) Chandra X-Ray Source Catalog (Kim et al.) * GALCENCXO - Galactic Center Chandra X-Ray Point Source Catalog (Muno et al.) * GC47TUCCXO - 47 Tuc Globular Cluster Chandra X-Ray Point Source Catalog (2005 Version, Heinke et al.) * GC47TUCCX2 - 47 Tuc Globular Cluster Chandra X-Ray Point Source Catalog (2017 Version, Bhattacharya et al.) * GCPTSRCCXO - Chandra Point Sources in 18 Distant Galaxy Clusters (Branchesi et al.) * GWSSTRPCXO - Groth-Westphal Strip Chandra X-Ray Point Source Catalog (Nandra et al.; Georgakakis et al.) * HCGXRBS - X-Ray Observations of Compact Group Galaxies (Tzanavaris et al. 2016) * HPERSEICXO - h Persei Chandra X-Ray Point Source Catalog (Currie et al.) * IC10CXO - IC 10 Chandra X-Ray Point Source Catalog (Laycock et al. 2017) * IC1396ACXO - IC 1396A & Trumpler 37 Cluster Chandra X-Ray Point Source Catalog (Getman et al.) * IC1396NCXO - IC 1396N Chandra X-Ray Point Source Catalog (Getman et al.) * IC348CXO - IC 348 Chandra X-Ray Point Source Catalog (Preibisch, Zinnecker) * IC348CXO2 - IC 348 Chandra X-Ray Point Source Catalog 2 (Stelzer et al.) * IR20126CXO - IRAS 20126+4104 Chandra X-Ray Point Source Catalog (Montes et al.) * LALABOOCXO - LALA Bootes Field Chandra X-Ray Point Source Catalog (Wang et al.) * LALACETCXO - LALA Cetus Field Chandra X-Ray Point Source Catalog (Wang et al.) * LKHA101CXO - LkH-alpha 101 Star Formation Region Chandra X-Ray Point Source Catalog (Wolk et al.) * LMC30DRCXO - LMC 30 Doradus Complex Chandra X-Ray Point Source Catalog (Townsley et al.) * LMCN11CXO - LMC N11 Giant HII Region Chandra X-Ray Point Source Catalog (Naze et al.) * M101CXO - M 101 Chandra X-Ray Point Source Catalog (Pence et al.) * M108CXO - M 108 Chandra X-Ray Compact Source Catalog (Wang et al.) * M16CXO - M 16 (Eagle Nebula) Chandra X-Ray Point Source Catalog (Guarcello et al.) * M17CXO - M 17 Chandra X-Ray Point Source Catalog (Broos et al.) * M31CFCXO - M 31 Central Field Chandra HRI X-Ray Point Source Catalog (Hofmann et al.) * M31CXO2 - M 31 Bulge Chandra X-Ray Point Source Catalog (Voss, Gilfanov) * M31CXOHRC2 - M 31 Chandra HRC X-Ray Source Catalog (Williams et al.) * M31CXOXRAY - M 31 Central Region Chandra X-Ray Point Source Catalog (Kong et al.) * M33CHASE - M 33 Chandra ACIS Survey (ChASeM33) Final Source Catalog (Plucinsky et al.) * M33CXOXRAY - M 33 Chandra X-Ray Point Source Catalog (Grimm et al.) * M37CXO - M 37 Chandra X-Ray Point Source Catalog (Nunez et al.) * M51CXO - M 51 Chandra X-Ray Discrete Source Catalog (Terashima, Wilson) * M51CXO2 - M 51 Deep Chandra ACIS X-Ray Point Source Catalog (Kuntz et al.) * M67CXO - M 67 Chandra X-Ray Point Source Catalog (van den Berg et al.) * M71CXO - M 71 Chandra X-Ray Point Source and Optical/Infrared Counterparts Catalog (Elsner et al.) * M81CXO - M 81 Chandra X-Ray Discrete Source Catalog (Swartz et al.) * M81CXO2 - M 81 Chandra X-Ray Source Catalog (Sell et al.) * M83CXO - M 83 Chandra X-Ray Point Source Catalog (Long et al.) * M87CXO - M 87 Chandra X-Ray Point Source Catalog (Jordan et al.) * MONR2CXO - Monoceros R2 Cloud Chandra X-Ray Point Source Catalog (Nakajima et al.) * MOXC - Massive Star-Forming Regions Omnibus X-Ray Catalog (Townsley et al.) * MYSTIXMPCM - Massive Young Star-Forming Complex Study in IR & X-Rays: MYStIX Probable Complex Members (Broos et al.) * MYSTIXXRAY - Massive Young Star-Forming Complex Study in IR & X-Rays: X-Ray Source Catalog (Kuhn et al.) * NAPEXMMCXO - North America (NGC 7000) & Pelican (IC 5070) Nebulae X-ray Source Catalog (Damiani et al. 2017) * NARCSCAT - Norma Arm Region Chandra Survey Point & Extended Source Catalog (Fornasini et al.) * NGC1068CXO - NGC 1068 Chandra X-Ray Compact Source Catalog (Smith et al.) * NGC1291CXO - NGC 1291 Chandra X-Ray Point Source Catalog (Luo et al.) * NGC1332CXO - NGC 1332 Chandra X-Ray Compact Source Catalog (Humphrey and Buote, 2004) * NGC1333CXO - NGC 1333 Chandra X-Ray Point Source Catalog (Getman et al.) * NGC1399CXO - NGC 1399 Chandra X-Ray Source Catalog (Paolillo et al.) * NGC1600CXO - NGC 1600 Chandra X-Ray Discrete Source Catalog (Sivakoff et al. 2004) * NGC1893CXO - NGC 1893 Chandra X-Ray Point Source Catalog (Caramazza et al.) * NGC2024CXO - NGC 2024 Chandra X-Ray Point Source Catalog (Skinner et al.) * NGC2237CXO - NGC 2237 Chandra X-Ray Point Source Catalog (Wang et al.) * NGC2244CXO - NGC 2244/Rosette Nebula Chandra X-Ray Point Source Catalog (Wang et al.) * NGC2264CX2 - NGC 2264 Chandra X-Ray Point Source Catalog 2 (Flaccomio et al.) * NGC2264CXO - NGC 2264 Chandra X-Ray Point Source Catalog (Ramirez et al.) * NGC2362CXO - NGC 2362 Chandra X-Ray Point Source Catalog (Damiani et al.) * NGC2403CX2 - NGC 2403 Chandra X-Ray Point Source Catalog (Binder et al.) * NGC2403CXO - NGC 2403 Central 3-kpc Region Chandra Source Catalog (Yukita et al.) * NGC2516CXO - NGC 2516 Chandra X-Ray Point Source Catalog (Damiani et al.) * NGC2808CXO - NGC 2808 Chandra X-Ray Point Source Catalog (Servillat et al.) * NGC2903CXO - NGC 2903 Central Region Chandra X-Ray Point Source Catalog (Yukita et al.) * NGC300CXO - NGC 300 Chandra X-Ray Point Source Catalog (Binder et al.) * NGC3115CXO - NGC 3115 Chandra X-Ray Point Source Catalog (Lin et al.) * NGC3293CXO - NGC 3293 Chandra X-Ray Point Source Catalog (Preibisch et al. 2017) * NGC404CXO - NGC 404 Chandra X-Ray Point Source Catalog (Binder et al.) * NGC4214CXO - NGC 4214 Chandra X-Ray Point Source Catalog (Binder et al.) * NGC4278CXO - NGC 4278 Chandra X-Ray Point Source Catalog (Brassington et al.) * NGC4365CXO - Chandra LMXB in NGC 4365 (Sivakoff G.R. et al. 2003) * NGC4382CXO - Chandra LMXB in NGC 4382 (Sivakoff G.R. et al. 2003) * NGC4472CXO - NGC 4472 Chandra X-Ray Point Source Catalog (Maccarone et al.) * NGC4636CXO - NGC 4636 Chandra X-Ray Point Source Catalog (Posson-Brown et al.) * NGC4649CX2 - NGC 4649 Chandra X-Ray Point Source Catalog 2 (Luo et al.) * NGC4649CXO - NGC 4649 Chandra X-Ray Discrete Source Catalog (Randall et al.) * NGC55CXO - NGC 55 Chandra X-Ray Point Source Catalog (Binder et al.) * NGC5866CXO - NGC 5866 Chandra X-Ray Point Source Catalog (Li J.-T. et al. 2009) * NGC6231CXO - NGC 6231 Chandra X-Ray Source Catalog (Damiani et al. 2016) * NGC6231CX2 - NGC 6231 Chandra X-Ray Source Catalog 2 (Kuhn et al. 2017) * NGC6334CXO - NGC 6334 Chandra X-Ray Point Source Catalog (Feigelson et al.) * NGC6357CXO - NGC 6357 Chandra X-Ray Point Source Catalog (Wang et al.) * NGC6530CXO - NGC 6530 Chandra X-Ray Point Source Catalog (Damiani et al.) * NGC6791CXO - NGC 6791 Chandra X-Ray Point Source Catalog (van den Berg et al.) * NGC752CXO - NGC 752 Chandra X-Ray Point Source Catalog (Giardino et al.) * OMC2P3CXO - OMC-2 and OMC-3 Chandra X-Ray Point Source Catalog (Tsujimoto et al.) * OMEGCENCX2 - Omega Centauri Globular Cluster Chandra Deep Survey X-Ray Point Source Catalog (Henleywillis et al., 2018) * ONCCXOXRAY - Orion Nebula Cluster Chandra HRC X-Ray Point Source Catalog (Flaccomio et al.) * ORIONFFCXO - Orion Flanking Fields Chandra X-Ray Point Source Catalog (Ramirez et al.) * RCW108CXO - RCW 108 Star Formation Region Chandra X-Ray Point Source Catalog (Wolk et al.) * RCW38CXO - RCW 38 Chandra X-Ray Point Source Catalog (Wolk et al.) * RCW38CXO2 - RCW 38 Chandra X-Ray Point Source Catalog 2 (Winston et al.) * RCW49CXO - RCW 49 Chandra X-Ray Point Source Catalog (Tsujimoto et al.) * RHOOPHCXO - Rho Ophiuchi SFR Chandra X-Ray Point Source Catalog (Imanishi et al.) * ROS13HRCXO - ROSAT/XMM-Newton 13-hour Field Chandra X-Ray Source Catalog (McHardy et al.) * ROSETTECXO - Rosette Molecular Cloud Chandra X-Ray Point Source Catalog (Wang et al.) * S254258CXO - S254-S258 Star-Forming Region Chandra X-Ray Point Source Catalog (Mucciarelli et al.) * SDSSCXOQSO - Sloan Digital Sky Survey Quasars Detected by Chandra (Green et al.) * SDSSS82CXO - Sloan Digital Sky Survey Stripe 82 Chandra Source Match Catalog (LaMassa et al.) * SELHCGCXO - Selected Hickson Compact Groups Chandra X-Ray Point Source Catalog (Tzanavaris et al.) * SFINCSXRAY - Star Formation in Nearby Clouds (SFiNCs) X-Ray Source Catalog (Getman et al. 2017) * SMCDFSCXO - Small Magellanic Cloud Deep Fields X-Ray Point Source Catalog (Laycock et al.) * SMCWINGCXO - Small Magellanic Cloud Wing Survey Chandra X-Ray Point Source Catalog (McGowan et al.) * SPICESCXO - SPICES Lynx Field Chandra X-Ray Source Catalog (Stern et al.) * SSA22CXO - SSA22 Field Chandra X-Ray Point Source Catalog (Lehmer et al.) * SWIRECXO - Spitzer Wide-Area IR Extra-Galactic Survey Chandra X-Ray Sources (Franceschini et al.) * SWIRELHCXO - SWIRE/Chandra Lockman Hole Field X-Ray Source Catalog (Wilkes et al.) * TRIFIDCXO - Trifid Nebula (M 20) Chandra X-Ray Point Source Catalog (Rho et al.) * W40SFRCXO - W 40 Star-Forming Region Chandra X-Ray Point Source Catalog (Kuhn et al.) * WD1CXO - Westerlund 1 Chandra X-Ray Point Source Catalog (Clark et al.) * XBOOTES - An X-Ray Survey of the NDWFS Bootes Field (Kenter et al.) * XDEEP2 - DEEP2 Galaxy Redshift Survey Fields Chandra Point Source Catalog (Goulding et al.) * XSHZAGNCXO - X-Ray Selected High-z AGN Catalog (Kalfountzou et al.) * IBISCAT - IBIS/ISGRI Soft Gamma-Ray Survey Catalog (Bird et al.) * INTAGNCAT - Second INTEGRAL AGN Catalog (Beckmann et al.) * INTGCCAT - INTEGRAL IBIS Hard X-Ray Survey of Galactic Center (Revnivtsev et al.) * INTIBISAGN - INTEGRAL IBIS AGN Catalog (Malizia et al. 2012) * INTIBISAG2 - INTEGRAL IBIS AGN Catalog Update (Malizia et al. 2016) * INTIBISASS - INTEGRAL IBIS All-Sky Survey of Hard X-Ray Sources (Krivonos et al.) * INTIBISGAL - INTEGRAL IBIS 9-Year Galactic Hard X-Ray Survey Catalog (Krivonos et al.) * INTIBISVHD - INTEGRAL IBIS Hard X-Ray Survey Above 100 keV Source Catalog (Krivonos et al.) * INTREFCAT - INTEGRAL Reference Catalog (Ebisawa et al.) * INTVARCAT - INTEGRAL/ISGRI Catalog of Variable X-Ray Sources (Telezhinsky et al.) * AGNSDSSXM2 - SDSS/XMM-Newton Type1 AGN X-Ray and Radio Properties Catalog (Ballo et al.) * AGNSDSSXMM - SDSS/XMM-Newton AGN Spectral Properties Catalog (Akylas et al.) * ALFPERXMM - Alpha Per Open Cluster XMM-Newton X-Ray Source Catalog (Pillitteri et al.) * AXIS - AXIS XMM-Newton Source Catalog (Carrera et al.) * CAIXA - Catalog of AGN in the XMM-Newton Archive (Bianchi et al.) * CARINAXMM - Carina OB1 Association XMM-Newton X-Ray Point Source Catalog (Antokhin et al.) * CEPAXMM - Cepheus A SFR XMM-Newton X-Ray Point Source Catalog (Pravdo and Tsuboi) * CFHTLSGXMM - XMM-Newton CFHTLS W1 Field Galaxy Groups Catalog (Gozaliasl et al.) * CMAOB1XMM - CMa OB1 XMM-Newton X-Ray Point Source Catalog (Santos-Silva et al. 2018) * COLL69XMM - Collinder 69 Cluster XMM-Newton X-Ray Point Source Catalog (Barrado et al.) * CYGOB2XMM - Cygnus OB2 Association XMM-Newton X-Ray Point Source Catalog (Rauw) * ELAISS1XMM - ELAIS S1 Field XMM-Newton X-Ray Source Catalog (Puccetti et al.) * EROSXMM - Extremely Red Objects XMM-Newton Survey Catalog (Brusa et al.) * FORNAXXMM - Fornax Dwarf Galaxy XMM-Newton X-Ray Point Source Catalog (Nucita et al.) * IC10XMMCXO - IC 10 XMM-Newton and Chandra X-Ray Point Source Catalog (Wang et al.) * IC1805XMM - IC 1805 XMM-Newton X-Ray Source Catalog (Rauw & Naze) * IC2944XMM - IC 2944/2948 XMM-Newton X-Ray Source Catalog (Naze et al.) * KAPORIXMM - Kappa Orionis XMM-Newton X-Ray Point Source Catalog (Pillitteri et al.) * L1641IOXMM - Lynds 1641 and iota Ori Region XMM-Newton X-Ray Point Source Catalog (Pillitteri et al.) * LAMORIXMM - Lambda Orionis Cluster XMM-Newton X-Ray Point Source Catalog (Franciosini and Sacco) * LOCKMANXM2 - Lockman Hole XMM-Newton X-Ray Point Source Catalog (Brunner et al.) * LOCKMANXMM - Lockman Hole Field XMM-Newton X-Ray Point Source Catalog (Mateos et al.) * LUPUS3XMM - Lupus 3 SFR XMM-Newton X-Ray Point Source Catalog (Gondoin) * M101XMM - M 101 XMM-Newton X-Ray Point Source Catalog (Jenkins et al.) * M31DEEPXMM - M 31 Deep XMM-Newton Survey X-Ray Source Catalog (Stiele et al.) * M31XMM2 - M 31 XMM-Newton Spectral Survey X-Ray Point Source Catalog (Shaw Greening et al.) * M31XMMXRAY - XMM-Newton M 31 Survey Catalog (Pietsch et al.) * M33DEEPXMM - M 33 Deep XMM-Newton Survey X-Ray Source Catalog (Williams et al.) * M33XMM2 - M 33 XMM-Newton X-Ray Variability Source Catalog (Misanovic et al.) * M33XMMXRAY - XMM-Newton M 33 Survey Catalog (Pietsch et al.) * M83XMM - M 83 XMM-Newton X-Ray Point Source Catalog (Ducci et al.) * MARANOXMM - Marano Field XMM-Newton X-Ray Source Optical Counterparts Catalog (Krumpe et al.) * NGC1512XMM - NGC 1512/NGC 1510 XMM-Newton X-Ray Point Source Catalog (Ducci et al.) * NGC2264XMM - NGC 2265 XMM-Newton X-Ray Point Source Catalog (Dahm et al.) * NGC2516XMM - NGC 2516 Cluster XMM-Newton X-Ray Point Source Catalog (Pillitteri et al.) * NGC2516XMM - NGC 2516 Cluster XMM-Newton X-Ray Point Source Catalog (Pillitteri et al.) * NGC253XMM - NGC 253 XMM-Newton X-Ray Point Source Catalog (Barnard et al.) * NGC2547XMM - NGC 2547 XMM-Newton X-Ray Point Source Catalog (Jeffries et al.) * NGC2808XMM - NGC 2808 XMM-Newton X-Ray Point Source Catalog (Servillat et al.) * NGC6231XMM - NGC 6231 XMM-Newton X-Ray Source Catalog (Sana et al.) * NGC6530XMM - NGC 6530 XMM-Newton X-Ray Point Source Catalog (Rauw et al.) * NGC752XMM - NGC 752 XMM-Newton X-Ray Point Source Catalog (Giardino et al.) * NWAYAWGXMM - AllWISE Counterparts and Gaia Matches to XMM-Newton Slew Survey (v2.0) Sources (Salvato et al. 2018) * OMEGCENXMM - Omega Centauri XMM-Newton X-Ray Point Source Catalog (Gendre et al.) * ROS13HRXMM - ROSAT 13-hour Field XMM-Newton X-Ray Source Catalog (Loaring et al.) * SA57XMM - Selected Area 57 XMM-Newton X-Ray Source Catalog (Trevese et al.) * SDSSS82XMM - Sloan Digital Sky Survey Stripe 82 XMM-Newton Source Match Catalog (LaMassa et al.) * SDSSXMMQSO - Sloan Digital Sky Survey (DR5)/XMM-Newton Quasar Survey Catalog (Young et al.) * SIGORIXMM - Sigma Orionis Cluster XMM-Newton X-Ray Point Source Catalog (Franciosini et al.) * SMCPSCXMM - Small Magellanic Cloud XMM-Newton Point Source Catalog (Sturm et al.) * SXDSCAT - Subaru/XMM-Newton Deep Survey X-Ray Source List (Ueda et al.) * TAURUSXMM - Taurus Molecular Cloud XMM-Newton X-Ray Source Catalog (Guedel et al.) * UPPRSCOXMM - Upper Sco XMM-Newton X-Ray Point Source Catalog (Argiroffi et al.) * XCS - XMM-Newton Cluster Survey Catalog, DR1 Version (Mehrtens et al.) * XMDSVVDS4S - XMM-Newton Medium Deep Survey/VIRMOS VLT Deep Survey 4-Sigma Catalog (Chiappetti et al.) * XMMATLAS - XMM-Newton Survey Catalog in the Herschel-ATLAS Field (Ranalli et al.) * XMMBSS - XMM-Newton Bright Serendipitous Survey (Della Ceca et al.) * XMMCDFS210 - XMM-Newton Deep Survey in the CDF-S 2-10 keV Source Catalog (Ranalli et al.) * XMMCDFS510 - XMM-Newton Deep Survey in the CDF-S 5-10 keV Source Catalog (Ranalli et al.) * XMMCFRSCAT - XMM-Newton/Canada-France Redshift Survey Fields X-Ray Sources (Waskett et al.) * XMMCOSMAGN - XMM-COSMOS Catalog of X-Ray Selected Type 1 AGN (Lusso et al.) * XMMCOSMOS - XMM-Newton COSMOS X-Ray Point Source Catalog (Cappelluti et al.) * XMMGPS - XMM-Newton Galactic Plane Survey (XGPS) * XMMLSSDEEP - XMM-Newton Large-Scale Structure Deep Full-Exposure X-Ray Source Catalog (Chiappetti et al.) * XMMOBSTARS - XMM-Newton OB Stars Catalog (Naze) * XMMSDSSGCE - 2XMMi/SDSS Galaxy Cluster Survey Extension (Takey et al. 2014) * XMMSDSSGCS - 2XMMi/SDSS Galaxy Cluster Survey (Takey et al. 2013) * XMMSLEWCLN - XMM-Newton Slew Survey Clean Source Catalog * XMMSLEWEGS - XMM-Newton Slew Survey Extragalactic Sample (Warwick et al.) * XMMSSC - XMM-Newton Serendipitous Source Catalog (4XMM-DR10) * XMMSSCGPS - XMM-Newton Survey Science Center Survey of the Galactic Plane (Nebot Gomez-Moran et al.) * XMMSSCLWBS - XMM-Newton 2XMMi-DR3 Selected Source Classifications Catalog * XMMSTACK - XMM-Newton XMM-Newton Serendipitous Source Catalog from Stacked Observations (4XMM-DR10s) (Traulsen et al. 2020) * XMMVARAGN - Ensemble X-Ray Variability of AGN in 2XMMi-DR3 (Vagnetti et al. 2011) * XMS - XMM-Newton Medium Sensitivity Survey (XMS) Source Catalog (Barcons et al.) * XWAS - XMM-Newton Wide Angle Survey (Esquej et al. 2013) * SACSHPSCAT - Swift AGN & Cluster Survey (SACS) Hard-Band (2-10 keV) Point Source Catalog (Dai et al. 2015) * SACSSESCAT - Swift AGN & Cluster Survey (SACS) Soft-Band (0.5-2 keV) Extended Source Catalog (Dai et al. 2015) * SACSSPSCAT - Swift AGN & Cluster Survey (SACS) Soft-Band (0.5-2 keV) Point Source Catalog (Dai et al. 2015) * SACSTPSCAT - Swift AGN & Cluster Survey (SACS) Total-Band (0.2-10 keV) Point Source Catalog (Dai et al. 2015) * SIXSRVYCAT - Swift-INTEGRAL X-Ray (SIX) Survey Catalog (Bottacini et al. 2012) * SWBAT105M - Swift Swift-BAT 105-Month All-Sky Hard X-Ray Survey (Oh K. et al. 2018) * SWSDSSQSO - Swift Simultaneous UV, Optical, and X-Ray Observed Quasar Catalog (Gronwall et al. 2012) * SWXCSCAT - Swift X-Ray Telescope Cluster Survey Catalog (Liu et al. 2015) * SWXRT1FGL - Swift XRT Counterparts to Unidentified 1FGL Sources (Takeuchi et al. 2013) * XTEASSCAT - RXTE All-Sky Slew Survey Catalog (XSS) * MAXIGSCHGL - 37-Month MAXI/GSC High Galactic-Latitude Source Catalog (Hiroi et al. 2013) * MAXISSCCAT - MAXI/SSC Catalog of X-Ray Sources in 0.7-7.0 keV Band (Hanayama et al. 2016) * NUCOSMOSFC - NuSTAR COSMOS Field X-Ray Source Catalog (Civano et al. 2015) * NUECDFSCAT - NuSTAR Survey of Extended Chandra Deep Field South (ECDF-S) Source Catalog (Mullaney et al. 2015) * NUGALCEN - NuSTAR Hard X-Ray Survey of the Galactic Center (Hong J. et al. 2016) * NUSTARSSC - NuSTAR Serendipitous Survey 40-Month Primary Source Catalog (Lansbury et al. 2017) * NUSTARSSC2 - NuSTAR Serendipitous Survey 40-Month Secondary Source Catalog (Lansbury et al. 2017) * EFEDSHARD - eROSITA Final Equatorial Depth Survey (eFEDS) Hard X-Ray (2.3-5.0 keV) Source Catalog * EFEDSMAIN - eROSITA Final Equatorial Depth Survey (eFEDS) Main X-Ray (0.2-2.3 keV) Source Catalog * ERASS1HARD - eROSITA All-Sky Survey (First 6 Months) Three-Band (2.3-5.0 keV) Source Catalog (Merloni et al. 2024) * ERASS1MAIN - eROSITA All-Sky Survey (First 6 Months) X-Ray (0.2-2.3 keV) Source Catalog (Merloni et al. 2024)
Caveats
(1) The larger the radius of the cone search used, the more chance there is of finding a spurious match with a random source rather than with the object/position specified. Given the several hundred thousand known X-ray sources contained in the XRAY table, there is a non-negligible (several percent) chance of finding an unrelated match even when using the default 3 arcminutes search radius. Most modern X-ray observatories s such as Chandra, XMM-Newton, ROSAT, etc., can locate source positions to 1 arcminute or better, notice, so that, to be conservative, you might want to reset the radius of the cone search to 1 or even 0.5 arcminutes.(2) Some X-ray detectors have some sensitivity to ultraviolet light as well as to X-rays, i.e., they have what is called a UV light leak. Particular instruments which are known to have had this feature include the Einstein High Resolution Instrument (HRI), the EXOSAT Low-Energy Telescope Channel Multiplier Array (LET CMA), and the ROSAT HRI. Some objects rich in UV emission, such as stars of spectral types O, B, and A, may thus be listed in source catalogs obtained using these instruments, even though they were detected due to their UV emission rather than any intrinsic X-ray emission. For further information on the Einstein HRI UV leak, see Appendix B of Schmitt et al. (1985, ApJ, 290,307), and on the ROSAT HRI UV leak, see Barbera et al. (2000, ApJ, 545, 449). To estimate the EXOSAT LE UV leak, you can use the FTOOLS utility exoleuv (see http://heasarc.gsfc.nasa.gov/lheasoft/ftools/exosat.html for more information on this task).
Search Cone Radius
The default value for the radius of the cone search is 3 arcminutes, and is generally an appropriate, albeit liberal, value for many of the component tables. You can choose your own radius value, of course, but we suggest that you do not specify a radius larger than 60 arcminutes, as you will be likely get many spurious matches for larger search areas (see Caveats section below).Parameters
Name
The commonly-used name of the X-ray source, where available. Sometimes,
this parameter has been filled through cross-correlations with other HEASARC
databases.
Database_Table
The name of the HEASARC database table from which the entry was taken.
RA
The Right Ascension of the X-ray source.
Dec
The Declination of the X-ray source.
LII
The Galactic Longitude of the X-ray source.
BII
The Galactic Latitude of the X-ray source.
Count_Rate
The count rate associated with the X-ray source in counts per
second, if available; details for the individual databases are as follows:
* A2PIC - R15 ct/sec of the 1st scan flux, where R15 is the counting
rate derived using the 1.5 X 3 degree FWHM FOV of the 2nd
layer of the argon counter and both layers of a xenon counter.
One R15 count/sec equals about 2.17x10-11 ergs/cm2/sec in
the 2-10 keV band.
* A4 - The fitted count rate for the source, taking into account all of
the data from the mission, for channels A+B+C (13 to 80 keV).
* AKNEPDFCXO - The total-band (0.5-7.0 keV) vignetting-corrected Chandra
source count rate, in ct/s.
* ALFPERXMM - The X-ray source count rate, in ct/s, for the summed MOS and PN
detectors, assuming a PN-MOS conversion factor of 3.1.
* ARCQUINCXO - The on-axis X-ray source broad-band (1 - 9 keV) count rate,
in ct/s.
* ASCAEGCLUS - The X-ray count rate, in ct/s/GIS.
* ASCAGIS - The 0.7-7.0 keV count rate corrected for vignetting (but not
for galactic interstellar absorption), in ct/s.
* ASCAGPS - The count rate observed at the GIS nominal position in the
0.7-7.0 keV energy band as obtained from image fitting analysis,
in ct/s/GIS.
* ASCALSS - The GIS count rate observed at the GIS reference position in
the 0.7-7.0 keV energy band and with an extraction radius of
6 arcminutes, in ct/s.
* ASCASIS - The estimated total broad-band count rate in front of the
telescope.
* AXIS - The source count rate in the XID (0.5 - 4.5 keV) band, in ct/s.
* BHRFSCID - The ROSAT-FSC count rate, in ct/s.
* BMWCHANCAT - The total-band (0.5-7.0 keV) count rate, in ct/s.
* CANDELSCXO - The total-band (0.5-7.0 keV) count rate, in ct/s.
* CARINACXO - The 0.5-8.0 keV net count rate (from merging observations),
in ct/s, calculated by dividing the counts in this band by
the effective exposure time.
* CARINAXMM - The EPIC PN count rate of the X-ray source, in ct/s, in the
whole PN energy band, 0.4 - 10 keV.
* CBFGRXECXO - The estimated 0.5-8.0 keV ACIS count rate, in ct/s,
calculated by dividing the counts in this band by the
effective exposure time.
* CCOSMOSCAT - The effective full-band (0.5-7.0 keV) count rate, in ct/s.
* CDFN2MSNEW - The net full-band (0.5-7.0 keV) count rate, in ct/s, calculated
by dividing the aperture-corrected, background-subtracted
full-band counts by the effective exposure time.
* CEPAXMM - The 1 - 10 keV band count rate of the X-ray source, in ct/s.
* CG12CXO - The net full-band (0.5 - 8.0 keV) count rate, in ct/s,
calculated by dividing the full-band counts by the effective
exposure time.
* CHAMPPSC - The net full-band (0.5 - 8 keV) count rate, in ct/s, calculated
by dividing the full-band net (background-corrected) counts by
the mean effective, vignetting-corrected exposure time.
* CHAMPSDDSA - The net full-band (0.5 - 8 keV) count rate, in ct/s, calculated
by dividing the net (background-corrected) counts by
the effective, vignetting-corrected exposure time.
* CHANDFN2MS - The 0.5-8.0 keV ACIS count rate (corrected for vignetting),
in ct/s, calculated by dividing the counts in this band by
the effective exposure time.
* CHANDFS1MS - The 0.5-2 keV keV ACIS count rate (corrected for vignetting),
in ct/s.
* CHANDFS2MS - The net full-band (0.5-8.0 keV) count rate, in ct/s, calculated
by dividing the full-band counts by the effective exposure time,
in ct/s. (Not corrected for vignetting.)
* CHANDFS4MS - The net full-band (0.5-8.0 keV) count rate, in ct/s, calculated
by dividing the full-band counts by the effective exposure time,
in ct/s. (Not corrected for vignetting.)
* CHANDFS7MS - The net full-band (0.5-8.0 keV) count rate, in ct/s, calculated
by dividing the aperture-corrected, full-band net counts by the
effective exposure time, in ct/s.
* CHANEXTDFS - The net full-band (0.5-8.0 keV) count rate, in ct/s, calculated
by dividing the full-band counts by the effective exposure time.
* CHANTYPGPR - The normalized total-band (0.5 - 8 keV) count rate, in ct/s.
* CHASFRXRAY - The ROSAT PSPC count rate in ct/s.
* CHICAGOCXO - The full-band (0.3 - 8.0 keV) count rate, in ct/s,
calculated by dividing the full-band counts by the total
exposure time. Note that, for sources near the center of the
FOV this is fairly accurate, but, for sources farther out
where the vignetting causes the effective exposure to be less
than that in the central region, the quoted count rate is a
lower limit to the actual value.
* CLANS - The net full-band (0.5-8.0 keV) count rate, in ct/s, calculated
by dividing the full-band counts by the effective exposure time.
* CLASXS - The net full-band (0.4-8.0 keV) count rate, in ct/s, calculated
by dividing the full-band counts by the effective exposure time.
* CLSCAT - The full-band (0.5-7 keV) count rate, in ct/s.
* CMA - The average LE count rate in the 0.05-2.0 keV energy range.
* CMAOB1XMM - The XMM-Newton EPIC camera PN count rate, in ct/s.
* CMAR1XRAY - The ROSAT count rate, in ct/s.
* COLL69XMM - The broad-band count rate of the X-ray source in the 0.5 -
7.3 keV energy range, in ct/s.
* COUP - The full-band (0.5 - 8 keV) count rate, in ct/s, calculated
by dividing the full-band net or background-corrected counts by
the product of the effective exposure time and the fraction of
the PSF at the fiducial energy of 1.497 keV enclosed within the
extracted area.
* CXOXASSIST - The net X-ray source count rate, in ct/s.
* CYGOB2CXO - The X-ray (0.5 - 8 keV) count rate, in ct/s, calculated as the
ratio of the source photons in total band (corrected for the
PSF fraction outside the extraction box) to the exposure time.
* CYGOB2CXO2 - The X-ray (0.5 - 8 keV) count rate, in ct/s.
* CYGOB2XMM - The combined EPIC PN count rates of the XMM-Newton source in
the 0.5 - 8.0 keV band, in ct/s.
* DXRBS - The observed ROSAT PSPC count rate for the source, in ct/s.
* ECDFSCXO - The net full-band (0.5 - 8.0 keV) count rate, in ct/s.
* ECDFSNEW - The net full-band (0.5-7.0 keV) count rate, in ct/s, calculated
by dividing the aperture-corrected, background-subtracted
full-band counts by the effective exposure time.
* EFEDSHARD - The net count rate for the source in the 2.3-5 keV band, based
on forced PSF-fitting, in ct/s.
* EFEDSMAIN - The net count rate for the source in the 0.2-2.3 keV band,
based on PSF-fitting, in ct/s.
* EINGALCAT - The background-subtracted Einstein X-ray count rate, in ct/s.
* EINGALCLUS - The Einstein IPC (X-ray) count rate, in ct/s, in the 0.5-4.5keV
energy band (IPC PI channels 4-11) within a fixed linear
aperture selected, if possible, to be a 1 Mpc radius (with an
assumed Hubble Constant of 50 km/s/Mpc). This count rate value
has been background subtracted and vignetting corrected. and
background.
* EINOPSLGAL - The Einstein IPC (X-ray) count rate measured for the galaxy,
in ct/s. This count rate has been corrected only for dead-time
and background.
* ELAISS1XMM - The full-band (0.5-10 keV) background-subtracted count rate of
the XMM-Newton X-ray source, in ct/s. The exposure times used
to calculate the count rates were obtained from the
corresponding exposure maps, and thus take into account all
spatial non-uniformities due to vignetting, chip geometry,
and CCD gaps.
* EMSS - The corrected IPC count rate in the 0.2-3.5 keV band. The count
rate is derived from the net counts, corrected for vignetting,
mirror scattering, and point response function scattering, and
the livetime, corrected for instrumental dead time.
* ERASS1HARD - The net count rate for the source in the 2.3-5 keV band, based
on PSF-fitting, in ct/s.
* ERASS1MAIN - The net count rate for the source in the 0.2-2.3 keV band,
based on PSF-fitting, in ct/s.
* EXOHGLS - The average LE count rate in the 0.05-2.0 keV energy range.
* EXSS - The IPC photon ct/s for the aperture 1
(1.25 arcmin radius) detection.
* GALCENCXO - The hard-band X-ray (2 - 8 keV) count rate, in ct/s, calculated
by dividing the net counts in the source region by the
effective exposure time.
* GC47TUCCXO - The 0.5 - 4.5 keV band count rate of the X-ray source, in ct/s,
calculated by dividing the background-subtracted counts by the
exposure time.
* GC47TUCCX2 - The 0.5 - 4.5 keV band count rate of the X-ray source, in ct/s,
calculated by dividing the background-subtracted counts by the
exposure time.
* HRASSCAT - The RASS PSPC count rate, in ct/s.
* HRICFA - The corrected HRI count rate, obtained by summing all counts
within a circle of radius 18 arc seconds centered on the
source position, and then applying the HRI correction factors
for exposure time, vignetting, deadtime, mirror scattering,
and quantum efficiency.
* HRIDEEP - The HRI count rate, corrected for vignetting, scattering, dead
time, and detector efficiency.
* IC10CXO - The average 0.3-8 keV (B-band) net count rate of the Chandra
source, in ct/s.
* IC10XMMCXO - The on-axis source broad-band count rate, in ct/s, being the
sum of the exposure-corrected count rates in the 4 energy bands
(which are defined differently from the XMM-Newton PN and
Chandra ACIS instruments, notice).
* IC1396ACXO - The full-band (0.5 - 8 keV) count rate, in ct/s, calculated
by dividing the net counts of merged apertures by the effective
exposure time.
* IC1396NCXO - The full-band (0.5 - 8 keV) count rate, in ct/s, calculated
by dividing the full-band counts by the effective exposure time.
* IC1805XMM - The XMM-Newton PN count rate (0.4 - 10.0 keV) of the source,
in ct/s.
* IC2944XMM - The XMM-Newton PN count rate (0.3 - 10.0 keV) of the source,
in ct/s.
* IC348CXO - The exposure-time-corrected X-ray source count rate in the
0.2 - 8.0 keV ACIS energy band, in ct/s.
* IC348CXO2 - The net extracted total (0.5 - 8 keV) band count rate of the
X-ray source, in ct/s, calculated by dividing the net extracted
counts by the effective exposure time.
* IPC - The corrected IPC count rate in the broad band (0.2 - 3.5 keV),
which may differ slightly from the value in the standard Rev 1B
processing.
* IPCDEEP - The IPC count rate in the broad band (0.16-3.5 keV), corrected
for source photons which fall outside the detect cell,
vignetting, background, and large angle scattering intrinsic
to the HEAO-2 mirror. (See the help file for the IPCDEEP
database for more details).
* IPCOSTARS - The corrected IPC count rate or upper limit thereof, in the
broad band (0.2-3.5 keV). To determine whether this is a
detection or upper limit, go to the IPCOSTARS database: if
count_rate_flag = 1 for a source, the listed value is an upper
bound and not a detection.
* IPCSLEW - The IPC count rate in all 15 PI bins of the detector.
* IPCULTSOFT - The background-subtracted count rate of the X-ray source in
the 0.2 to 4.0 keV band in units of ct/s. The
counts for each source were extracted within a circular region
of 3 arcmins radius centered on the source's catalog position.
* IR20126CXO - The observed Chandra ACIS-I count rate of the X-ray source in
the 0.5-8 keV band, in ct/s.
* KAPORIXMM - The XMM-Newton count rate of the X-ray source in the 0.3 - 8.0
keV band, derived from wavelet analysis scaled to the MOS
sensitivity, in ct/s.
* L1641IOXMM - The XMM-Newton count rate of the X-ray source in the 0.3 - 8.0
keV band scaled to the MOS sensitivity, in ct/s.
* LAMORIXMM - The MOS-equivalent count rate of the X-ray source in the 0.3 -
7.8 keV energy band, in ct/s.
* LMCHRIXRAY - The net HRI count rate, in ct/s. The count rate
from the observation in which the positional error of the source
was the smallest, is adopted.
* LMCN11CXO - The equivalent on-axis source total-band (0.5 - 8.0 keV) count
rate of the X-ray source, in ct/s, being the sum of the
exposure-corrected count rates in the four narrow bands.
* LMCROSXRAY - The PSPC 0.1-2.4 keV count rate, in ct/s.
* LMCXRAY - The IPC count rate in the broad-band of 0.16 to 3.5 keV.
* LOCKMANXM2 - The X-ray source count rate in the 0.5 - 10.0 keV energy
band, in ct/s. This is the combined all-EPIC point source
count rate, corrected for telescope vignetting and for the
fraction of counts outside the source extraction region.
* LUPUS3XMM - The PN count rate of the X-ray source in the 0.5 - 4.5 keV
band, in ct/s.
* M101XMM - The X-ray source count rate in the hard (2 - 6 keV) band for
the PN camera, in ct/s.
* M108CXO - The on-axis (exposure-corrected) net source count rate in the
0.3-7 keV energy band, in ct/s.
* M16CXO - The 0.5 - 8 keV band count rate of the X-ray source, in ct/s,
in the central observation.
* M17CXO - The net extracted total (0.5 - 8 keV) band count rate of the
X-ray source, in ct/s, calculated by dividing the net extracted
counts by the effective exposure time.
* M31CFCXO - The source count rate (0.2 - 10 keV), in ct/s.
* M31CXOXRAY - The count rate (corrected for exposure, background variation,
and instrumental point spread function), in ct/s, determined
via aperture photometry.
* M31DEEPXMM - The combined EPIC pn, MOS1 and MOS2 count rate of the
XMM-Newton source in the 0.2 - 4.5 keV (XID) band, in ct/s.
* M31ROSXRAY - The count rate in the broad-band (0.1-2.4 keV), in ct/s.
* M31XMMXRAY - The combined EPIC PN, MOS1, and MOS2 count rate, in ct/s, in
the XID band corresponding to the 0.2-4.5 keV energy range.
* M33CHASE - The X-ray (0.35 - 8 keV) count rate, in ct/s, calculated by
dividing the net counts by the total exposure time.
* M33DEEPXMM - The combined EPIC PN, MOS1, and MOS2 count rate, in ct/s, in
the XID band corresponding to the 0.2-4.5 keV energy range.
* M33XMMXRAY - The combined EPIC PN, MOS1, and MOS2 count rate, in ct/s, in
the XID band corresponding to the 0.2-4.5 keV energy range.
* M51CXO2 - The broad-band (0.35 - 8.0 keV) count rate of the X-ray source,
in ct/s. This is the mean value over all exposures.
* M67CXO - The net, background-corrected, 0.3 - 7.0keV count rate, in ct/s.
* M81CXO - The aperture-corrected X-ray source count rate in the ~0.2 to
8.0 keV band, in ct/s.
* M83CXO - The Chandra X-ray source count rate (0.35 - 8.0 keV), in ct/s.
* M83XMM - The combined EPIC pn, MOS1 and MOS2 count rate of the
XMM-Newton source in the 0.2 - 12.0 keV band, in ct/s.
* M87CXO - The background-corrected X-ray count rate in the 0.3 to 10 keV
band, in ct/s.
* MONR2CXO - The approximate, non-vignetting-corrected, 0.5 - 10.0keV count
rate, in ct/s, computed by dividing the net counts by the
effective exposure, 100 ksec, for all sources.
* MOXC - The net full-band (0.5 - 8 keV) count rate, in ct/s,
calculated by dividing the full-band counts by the effective
exposure time.
* MYSTIXMPCM - The net full-band (0.5 - 8 keV) count rate, in ct/s,
calculated by dividing the full-band counts by the effective
exposure time.
* MYSTIXXRAY - The net full-band (0.5 - 8 keV) count rate, in ct/s,
calculated by dividing the full-band counts by the effective
exposure time.
* NAPEXMMCXO - The (probably Chandra) count rate in the 0.4 - 7.9 keV energy
band of the X-ray source, in ct/s.
* NGC1291CXO - The net extracted total (0.5 - 8 keV) band count rate of the
X-ray source, in ct/s, calculated by dividing the net extracted
counts by the effective exposure time.
* NGC1332CXO - The count rate of the X-ray source in the 0.3 - 5 keV energy
range, in ct/s.
* NGC1333CXO - The average X-ray source count rate CR, in ct/s, as given by
CR = (Cxtr - Bxtr)/(fPSF * Enet), where Cxtr are
the source counts, Bxtr the background counts, fPSF the
fraction of the total counts extracted from the source
extraction region (typically ~0.9) and Enet = 37800 s is
the effective exposure time.
* NGC1512XMM - The combined (PN + MOS1 + MOS2) count rate of the XMM-Newton
X-ray source in the 0.2 - 12 keV band, in ct/s.
* NGC1600CXO - The wavdetect count rate of the Chandra X-ray source in the
0.3 - 6 keV band, in ct/s.
* NGC1893CXO - The estimated net extracted total (0.5 - 8 keV) band count rate
of the X-ray source, in ct/s, calculated by dividing the net
extracted counts by the effective exposure time.
* NGC2237CXO - The estimated net extracted total (0.5 - 8 keV) band count rate
of the X-ray source, in ct/s, calculated by dividing the net
extracted counts by the effective exposure time.
* NGC2244CXO - The estimated net extracted total (0.5 - 8 keV) band count rate
of the X-ray source, in ct/s, calculated by dividing the net
extracted counts by the effective exposure time.
* NGC2264CXO - The net background- and vignetting-corrected count rate, in
counts per second.
* NGC2264XMM - Either the EPIC PN or the EPIC MOS count rate of the X-ray
source, in ct/s. (Refer to the associated flag field in the
original table.)
* NGC2362CXO - The count rate of the X-ray source, in ct/s, assumed by the
HEASARC to be in the 0.3 - 8.0 keV energy range, although this
needs to be confirmed.
* NGC2403CXO - The ASIC-S3 count rate (0.5 - 2.0 keV) of the X-ray source, in
ct/s.
* NGC2516XMM - The MOS1-equivalent count rate of the X-ray source, in ct/s.
* NGC2547XMM - The PN count rate of the X-ray source in the total band
(0.3 - 3 keV), in ct/s.
* NGC2808XMM - The net (background- and vignetting-corrected) 0.5 - 10 keV
count rate of the X-ray source, in ct/s.
* NGC4365CXO - The count rate (0.3 - 10 keV) of the X-ray source, in ct/s.
* NGC4382CXO - The count rate (0.3 - 10 keV) of the X-ray source, in ct/s.
* NGC4649CXO - The count rate (0.3 - 10 keV) of the X-ray source, in ct/s.
* NGC5866CXO - The on-axis, exposure-corrected count rate of the X-ray source
in the broad-band (0.3 - 7 keV) energy range, in ct/s
* NGC6231CXO - The count rate (0.3 - 8.0 keV) of the X-ray source, in ct/s.
* NGC6231CX2 - The count rate (0.3 - 8.0 keV) of the X-ray source, in ct/s,
calculated by dividing the full-band counts by the effective
exposure time.
* NGC6231XMM - The PN count rate of the X-ray source in the 0.5 - 10.0 keV
band, in ct/s.
* NGC6357CXO - The X-ray (0.5 - 8 keV) count rate, in ct/s, calculated by
dividing the estimated counts by the effective exposure time.
* NGC6530CXO - The count rate of the X-ray source in the energy range from
0.3 - 8.0 keV, in ct/s, as measured using PWDetect, a
wavelet-based source detection algorithm.
* NGC6530XMM - The vignetting- and background-corrected PN count rate of the
X-ray source in the 0.5 - 1.2 keV band, in ct/s.
* NGC752CXO - The X-ray (0.5 - 2.0 keV) source count rate, in ct/s.
* NGC752XMM - The XMM-Newton X-ray source EPIC (PN+MOS1+MOS2) count rate of
the X-ray source, in ct/s. The HEASARC believes the energy range
to be 0.5 - 2.0 keV.
* NORAS - The RASS PSPC count rate, in ct/s.
* NUCOSMOSFC - The deblended, vignetting-corrected broad-band count rate
(3 - 24 keV), in ct/s.
* NUECDFSCAT - The non-aperture-corrected net source count rate (3 - 24 keV),
based on 30"-aperture photometry centered on the NuSTAR source
position, in the full band, calculated from the corresponding
net source counts and mean exposure time and after the
effects of source blending have been taken into account, in
ct/s.
* NUSTARSSC - The deblended, net broad-band count rate (3 - 24 keV), in ct/s.
* NUSTARSSC2 - The net broad-band count rate (3 - 24 keV), in ct/s.
* OMEGCENXMM - The 0.5 - 5.0 keV band count rate of the X-ray source, in ct/s.
* ONCCXOXRAY - The net background- and vignetting-subtracted count rate of
the X-ray source in ct/s, computed by dividing the net source
counts by the Chandra effective exposure time.
* ORIONFFCXO - The net background- and vignetting-subtracted count rate of
the X-ray source in ct/s.
* ORIONXRAY - The corrected ROSAT HRI count rate in ct/s.
* PLEIADXRAY - The mean PSPC count rate of the X-ray source in counts per
second (converted by the HEASARC from the units of ct/ks in the
original table).
* RASS2FXRAY - The vignetting-corrected ROSAT PSPC count rate, in ct/s.
* RASS2MASS - The RASS/BSC count rate, in ct/s.
* RASS2RXS - The RASS (background-corrected) source count rate, in ct/s.
* RASS6DFGS - The RASS X-ray source count rate (0.1 - 2.4 keV), in ct/s.
* RASSASASEB - The RASS count rate, in ct/s.
* RASSASASPV - The ROSAT Bright Source Catalog count rate in the 0.1-2.0 keV
band, in ct/s.
* RASSBSC - The PSPC count rate corrected for vignetting in the energy band
from 0.1 - 2.4 keV.
* RASSBSCPGC - The RASS-BSC X-ray source count rate (0.1 - 2.4 keV), in ct/s.
* RASSCNS3 - The mean PSPC count rate, in ct/s.
* RASSDSSAGN - The RASS X-ray source count rate (0.1 - 2.4 keV), in ct/s,
corrected for vignetting.
* RASSDSSTAR - The RASS X-ray source count rate (0.1 - 2.4 keV), in ct/s,
corrected for vignetting.
* RASSDWARF - The mean PSPC count rate in ct/s.
* RASSEBCS - The final PSPC count rate in ct/s. Based on the original VTP
count rate in PHA channels 11 to 235. Statistical corrections
for low-surface-brightness emission that was not directly
detected and for contamination from point sources have been
applied.
* RASSFSC - The vignetting-corrected source count rate in the broad energy
band (pulse height amplitude (PHA) channels 11 - 235), in ct/s.
* RASSGIANT - The mean PSPC count rate in ct/s.
* RASSHGSFT2 - The mean PSPC count-rate in ct/s, as taken from the RASS BSC
for most sources. In a few cases, it comes from the RASS FSC
or is derived from small photon event tables (PETs) extracted
from the RASS.
* RASSHGSOFT - The mean PSPC count-rate in ct/s as measured during the RASS,
and as quoted in the RASS BSC.
* RASSOB - The mean PSPC count rate in ct/s.
* RASSSDSSGC - The background-subtracted X-ray count rate in the 0.1 - 2.4 keV
energy range, in ct/s.
* RASSUSNOID - The RASS/BSC count rate, in ct/s.
* RASSWD - The PSPC count rate in the 0.1-0.28 keV band.
* RBS - The RASS count rate in the total ROSAT PSPC bandpass
(0.1 - 2.4 keV), in ct/s.
* RCW49CXO - The X-ray (0.5 - 8 keV) count rate, in ct/s, calculated by
dividing the estimated counts by the effective exposure time.
* REFLEX - The uncorrected cluster count rate, in ct/s, as measured with
the GCA method and for the specified aperture size.
* ROSATHARD - The hard-band PSPC count rate in the 0.9 - 2.0 keV band, in
ct/s, calculated by dividing the number of counts in PSPC
channels 91 - 201 within the source extraction circle by the
ROSAT PSPC exposure time (in s) after good-time screening.
* ROSETTECXO - The estimated X-ray (0.5 - 8.0 keV) count rate, calculated
by dividing the net counts in the source region by the
effective exposure time.
* ROSHRI - The mean ROSAT HRI count rate, in ct/s.
* ROSNEPAGN - The count rate in the 0.1-2.4keV range, in ct/s.
* ROSNEPXRAY - The PSPC count rate in the 0.1-2.4keV range, in ct/s, corrected
for vignetting.
* ROSPSPC - The source count rate from ML or MDETEC algorithms (ct/s).
* ROSPSPCF - The source count rate from ML or MDETEC algorithms (ct/s).
* S254258CXO - The net full-band (0.5 - 8.0 keV) count rate, in ct/s,
calculated by dividing the full-band counts by the effective
exposure time.
* SACSHPSCAT - The 2-10 keV count rate of the Swift XRT source, in ct/s.
* SACSSESCAT - The 0.5-2 keV count rate of the Swift XRT extended source,
in ct/s.
* SACSSPSCAT - The 0.5-2 keV count rate of the Swift XRT source, in ct/s.
* SACSTPSCAT - The 0.2-10 keV count rate of the Swift XRT source, in ct/s.
* SDSSCXOQSO - The X-ray (0.3 - 8 keV) count rate, in ct/s, calculated
by dividing the net counts in the source region by the
vignetting-corrected exposure time.
* SDSSXMMQSO - The X-ray (0.5 - 10 keV, presumably) count rate, in ct/s,
calculated by dividing the net counts in the source region by
the "live" exposure time of the XMM-Newton observation.
* SELHCGCXO - The net full-band (0.5 - 8.0 keV) count rate, in ct/s.
* SIGORIXMM - The MOS-equivalent count rate of the X-ray source, in ct/s,
derived from the source detection algorithm run on the summed
MOS1+MOS2+PN dataset in the 0.3-7.8 keV energy band.
* SMCDFSCXO - The net full-band (0.5 - 8.0 keV) count rate, in ct/s.
* SMCROSXRAY - The PSPC count rate in the 0.1-2.4 keV energy range, in ct/s.
* SMCROSXRY2 - The PSPC 0.1-2.4 keV count rate, in ct/s.
* SMCXRAY - The IPC count rate in the broad-band of 0.16 to 3.5 keV.
* SSA22CXO - The net background-subtracted full-band (0.5 - 8.0 keV) count
rate, in ct/s.
* SWIRELHCXO - The net 0.3 - 8.0 keV count rate of the X-ray source, in ct/s.
* SWSDSSQSO - The Swift/XRT count rate of the X-ray source, in ct/s.
* SWXRT1FGL - The Swift/XRT count rate of the X-ray source, in the
0.3-10 keV band, in ct/s.
* SXDSCAT - The sum of the medium (2 - 4.5 keV) band and ultra-hard (4.5 -
10 keV) band vignetting-corrected count rates, in ct/s.
* TARTARUS - The combined SIS/GIS count rate in the 0.5-10.0 keV energy
range.
* TAURUSXMM - The PN-equivalent source count rate CRF, in ct/s, in the
mosaicked EPIC full-band (0.5 - 7.3 keV) image.
* TRIFIDCXO - The net count rate in the 0.5 - 8.0 keV band of the X-ray
source, in ct/s, derived from wavelet analysis.
* UPPRSCOXMM - The equivalent on-axis EPIC PN count rate, in ct/s, i.e., the
count rate that would be observed if the source was located on
the telescope axis.
* VLULXCAT - The full-band (0.0 - 8.0 keV) count rate, in ct/s,
calculated by dividing the net counts by the exposure time.
* W40SFRCXO - The net full-band (0.5 - 8.0 keV) count rate, in ct/s,
calculated by dividing the full-band counts by the effective
exposure time.
* WARPS - The corrected total count rate as obtained from the Voronoi
Tessellation and Percolation (VTP) algorithm, in ct/s.
* WD1CXO - The X-ray (0.5 - 8 keV) count rate, in ct/s, calculated as the
ratio of the source photons in the total band to the exposure
time. It does not include the ARF correction, and, hence,
for some sources, will be an underestimate of the true count
rate.
* WGACAT - The background-subtracted PSPC count rate corrected for the
telescope vignetting and point spread function. The counts are
accumulated from PI bins 24 to 224 (0.24-2.0 keV).
* XBOOTES - The full-band (0.5 - 7 keV) count rate, in ct/s, calculated
by dividing the full-band counts by the effective exposure time.
* XMMATLAS - The net count rate of the X-ray source in the 0.5-8 keV band,
averaged over the three XMM-Newton cameras, in ct/s, as derived
from EMLDetect.
* XMMBSS - The source count rate in the 0.5 - 4.5 keV energy band, in ct/s.
* XMMCDFS210 - The XMM-Newton net count rate of the X-ray source in the 2 - 10
keV band, as determined by EMLDetect, in ct/s.
* XMMCDFS510 - The XMM-Newton net count rate of the X-ray source in the 5 - 10
keV band, as determined by EMLDetect, in ct/s.
* XMMCOSMOS - The hard-band X-ray (2 - 10 keV) count rate, in ct/s, calculated
by dividing the hard-band counts in the source region by the
vignetting-corrected hard-band exposure time.
* XMMGPS - The broad-band count rate (0.4 - 6.0 keV) of the EPIC PN
detection, in ct/s.
* XMMLSSDEEP - The EPIC PN count rate of the X-ray source, in ct/s, in the
2-10 keV energy band.
* XMMOBSTARS - The count rate of the X-ray source in the 0.5 - 4.5 keV (XID)
energy range, in ct/s, as measured by the EPIC-MOS1 camera (for
counts with patterns 0-4 for the PN and 0-12 for the MOS
cameras).
* XMMSLEWCLN - The full-band count rate (0.2 - 12 keV), in ct/s.
* XMMSSC - The full-band count rate (0.2 - 12 keV) of the combined EPIC
detection, in ct/s.
* XMMSSCGPS - The hard-band count rate (2.0 - 12.0 keV) of the EPIC PN
detection, in ct/s.
* XMMSTACK - The full-band count rate (0.2 - 12 keV) of the combined EPIC
detection, in ct/s.
* XTEASSCAT - The source count rate in the 3 - 8 keV energy band, in
ct/s/PCU (Proportional Counter Unit).
Count_Rate_Error
The error in the X-ray count rate in ct/s.
Error_Radius
For many component tables, this is the radius of the 90-percent confidence
error circle, in arcseconds. For the XMMSSC table, it is the total positional
uncertainty, in arcseconds, calculated by combining the statistical error and
the error arising from the field rectification process quadratically: for a
2-dimensional Gaussian error distribution, this radius reflects a 63%
probability that the true source position lies within this radius of the
measured position. For database tables for which this information is not
explicitly given, the following estimates for the positional uncertainty can
be made: (i) for Einstein IPC databases, a value of about 60 arc seconds
should be approximately correct, except for the IPCSLEW database for which
the authors (Elvis et al.) estimate 72 arc seconds; (ii) for the ASCASIS
database, Eric Gotthelf estimates a typical value of 40 arc seconds, (iii)
for the ROSPSPC and ROSHRI databases, the typical values are 10 - 30 and 4 -
10 arcseconds, respectively, with the larger uncertainties for sources which
were detected at the edges of the fields of view, and (iv) for the XRBCAT and
the HEAO 1 databases, the positions are only very approximate and should, in
general, only be assumed to be accurate to the order of a degree, although
some individual entries from these tables are much more accurate than this
value.
Flux
The X-ray flux in a characteristic bandpass in units of erg/cm2/s. This
quantity is usually obtained by multiplying the given count rate by a
conversion factor. Only a few of the constituent databases currently have
values for this parameter populated. The characteristic bandpasses for the
fluxes in such databases are as follows:
* AEGISX - 0.5 - 10.0 keV, uncorrected, observed frame
* AEGISXDCXO - 0.5 - 10.0 keV, uncorrected, observed frame
* AGNSDSSXMM - 2.0 - 8.0 keV
* AGNSDSSXM2 - 0.2 - 12.0 keV (XMM-Newton Band 8)
* AKNEPDFCXO - 0.5 - 7.0 keV, corrected for galactic absorption
* ALFPERXMM - 0.3 - 8.0 keV
* ASCAEGCLUS - 0.5 - 10.0 keV, in the observer's frame
* ASCAGIS - 0.7 - 7 keV, corrected for galactic interstellar absorption
and using a best-fit power-law spectral model
* ASCAGPS - 0.7 - 7 keV, corrected for galactic interstellar absorption
and using a best-fit power-law spectral model
* ASCALSS - 0.7 - 7 keV, corrected for galactic interstellar absorption
and using a best-fit power-law spectral model
* AXIS - 0.5 - 10 keV
* BAXGALCLUS - 0.1 - 2.4 keV, calculated assuming the full galactic column
density; i.e., the value adopted is the one that is appropriate
for extragalactic sources
* BMWCHANCAT - 0.5 - 7.0 keV, the total-band flux of the source, in
erg/s/cm2, calculated from the total-band count rate using a
fixed conversion factor COR_FAC0 of 1.0E-11 erg/cm2/ct
* CAIXA - 2.0 - 10.0 keV
* CANDELSCXO - 0.5 - 10.0 keV
* CARINACXO - 0.5 - 8.0 keV
* CBFGRXECXO - 0.5 - 8.0 keV
* CCOSMOSCAT - 0.5 - 10.0 keV, calculated by converting the effective
full-band count rate using the formula: F = CR/(CF * 1011),
where CF is the energy conversion factor,
0.742 counts erg-1 cm2
* CCOSRSSFAG - 2.0 - 10.0 keV, computed using a spectral index (Gamma) of
2.1 for candidate SF galaxies and 1.4 value for AGN
candidates (NOTE: flux upper limits have been included for this
table; refer to the original table for clarification)
* CDFN2MSNEW - 0.5 - 7.0 keV
* CDFSAGNCXO - 2.0 - 10.0 keV
* CFHTLSGXMM - 0.5 - 2.0 keV
* CHAMPHXAGN - 2.0 - 8.0 keV, corrected for Galactic absorption in the observed
frame
* CHAMPLANE - 0.5 - 2.0 keV, unabsorbed, calculated using the expression:
10.0^(fx/fR - (0.4 * R-magnitude) - 5.765)
* CHAMPLANEX - 2.0 - 8.0 keV, unabsorbed, calculated using a simple power law
plus 6.6 keV Fe emission line (PL + Fe) spectral model using
quantile analysis
* CHAMPPSC - 0.5 - 8.0 keV, assuming an X-ray power-law spectrum with a
photon index gamma = 1.4
* CHAMPSDDSA - 0.5 - 8.0 keV
* CHANDFN2MS - 0.5 - 8.0 keV, in the observed-frame, corrected for vignetting
and the continuous ACIS quantum efficiency degradation, but not
corrected for absorption by the Galaxy or intrinsic to the source
* CHANDFS1MS - 0.5 - 2 keV, calculated from the net count rate (obtained by
dividing the net counts by the effective exposure time, which
includes the effect of vignetting) and using the conversion
factor appropriate for the measured average spectrum of all the
sources, Gamma = 1.375 +/- 0.015
* CHANDFS2MS - 0.5 - 8.0 keV
* CHANDFS4MS - 0.5 - 8.0 keV, in observed-frame, not corrected for Galactic
or intrinsic absorption
* CHANDFS7MS - 0.5 - 7.0 keV, converted by the authors from the source counts
using XSPEC and AE-generated merged spectral response files for
each source (negative values indicate 90%-confidence upper
limits)
* CHANEXTDFS - 0.5 - 8.0 keV, not corrected for Galactic or intrinsic absorption
* CHANNSGPSC - 0.3 - 8.0 keV, using the first of two possible Chandra
observations
* CHANSEXSI - 2.0 - 10 keV
* CHANSNGCAT - 2 - 10 keV
* CHANTYPGPR - 2.0 - 10 keV
* CHESSCAT - 0.3 - 8.0 keV
* CHNGPSCLIU - 0.3 - 8.0 keV, the average of all detections, as calculated
using the count rate
* CLANS - 0.5 - 8.0 keV
* CLASXS - 0.4 - 8.0 keV
* CLSCAT - 0.5 - 10 keV, calculated from the count rate using an energy
conversion factor
* CR261CXO - 0.3 - 7.0 keV
* CSC - 0.5 - 7.0 keV (ACIS broad energy band), if the total ACIS
exposure time is greater than zero, or 0.1 - 10.0 keV (HRC wide
energy band), otherwise; the aperture-corrected net energy flux
inferred from the source region aperture, calculated by counting
X-ray events
* CYDER - 2.0 - 8.0 keV
* CXOGSGSRC - 0.3 - 8.0 keV, averaged over all detections
* CXOXASSIST - 0.3 - 8.0 keV, estimated using a power-law model with a default
slope of 1.8
* DXRBS - 0.1 - 2.0 keV, not corrected for Galactic absorption and using a
conversion factor that was derived from the ROSAT PSPC count
rate using the observed hardness ratio and an assumed Galactic
hydrogen column density
* ECDFSCXO - 0.5 - 8.0 keV
* ECDFSNEW - 0.5 - 7.0 keV
* EFEDSHARD - 2.3 - 5.0 keV, based on a power-law model with Gamma=2.0 and
with Galactic absorption
* EFEDSMAIN - 0.2 - 2.3 keV, based on a power-law model with Gamma=2.0 and
with Galactic absorption
* EINGALCAT - 0.2 - 4.0 keV
* ELAISCXO - 0.5 - 8.0 keV
* ELAISS1XMM - 0.5 - 10.0 keV
* EMSS - 0.3 - 3.5 keV
* ERASS1HARD - 2.3 - 5.0 keV, based on a power-law model with Gamma=2.0 and
the total Galactic absorption column density at the source
position
* ERASS1MAIN - 0.2 - 2.3 keV, based on a power-law model with Gamma=2.0 and
the total Galactic absorption column density at the source
position
* EROSXMM - 2 - 10 keV
* FORNAXXMM - 0.2 - 12 keV, absorbed
* GCPTSRCCXO - 2 - 10 keV
* GWSSTRPCXO - 0.5 - 10 keV
* HPERSEICXO - 0.3 - 8.0 keV, presumably
* IBISCAT - 20 - 40 keV
* IC348CXO2 - 0.5 - 8.0 keV, presumably
* INTAGNCAT - 20 - 40 keV
* INTGCCAT - 18 - 60 keV
* INTIBISAG2 - 20 - 100 keV
* INTIBISAGN - 20 - 100 keV
* INTIBISASS - 17 - 60 keV
* INTIBISGAL - 17 - 60 keV
* INTIBISVHD - 100 - 150 keV, time-averaged
* INTVARCAT - 20 - 40 keV
* IPCDEEP - 0.16 - 3.5 keV
* IR20126CXO - 0.5 - 8 keV
* KAPORIXMM - 0.3 - 8 keV, unabsorbed, as derived using PIMMS with a
WABS+APEC model spectral model
* L1641IOXMM - 0.3 - 8.0 keV, unabsorbed, as derived from the best-fit
spectral model or from count-rate-to-flux conversion
factors for the fainter sources
* LALABOOCXO - 0.5 - 10.0 keV, Galactic absorption-corrected
* LALACETCXO - 0.5 - 10.0 keV, Galactic absorption-corrected
* LKHA101CXO - 0.3 - 8.0 keV, unabsorbed, as derived from the best-fit
spectral model and the estimated absorbing column density
* LOCKMANXMM - 2.0 - 10.0 keV
* LOCKMANXM2 - 0.5 - 10.0 keV
* M101CXO - 2.0 - 8.0 keV
* M101XMM - 0.3 - 6.0 keV, obtained by summing the fluxes over the
three sub-bands and then taking the weighted mean of the
individual PN and MOS measurements
* M31CFCXO - 0.2 - 10 keV, calculated for a power-law spectrum with a photon
index of 1.7 and an assumed Galactic foreground absorption
(column density) of NH = 6.6 x 1020 cm-2
* M31DEEPXMM - 0.2 - 4.5 keV
* M31ROSXRAY - 0.2 - 4.0 keV, applying the spectral model of TF (thermal
bremsstrahlung with kT=5 keV and NH = 7 x 1020 cm-2)
* M31XMMXRAY - 0.2 - 4.5 keV, based on combined EPIC PN, MOS1, and MOS2 data
* M33CXOXRAY - 0.3 - 8.0 keV
* M33DEEPXMM - 0.2 - 4.5 keV, based on combined EPIC PN, MOS1, and MOS2 data
* M33XMMXRAY - 0.2 - 4.5 keV, based on combined EPIC PN, MOS1, and MOS2 data
* M33XMM2 - 0.2 - 4.5 keV, the maximum EPIC flux of the X-ray source in
the different observations in the XID band, calculated from the
vignetting-corrected count rate using the energy conversion
factors for the PN and MOS medium, thin and thick filter,
obtained by WebPIMMS, taking 100% of the source counts and
assuming a power-law spectrum with a photon index of 1.7
absorbed by the Galactic foreground column of 6 x 1020 cm-2
* M37CXO - 0.5 - 7 keV, the absorbed energy flux of the Chandra source
* MAXIGSCHGL - 4 - 10 keV
* MAXISSCCAT - 1.85 - 7.0 keV
* MDWF10PCUX - 0.2 - 2.0 keV, , calculated from the logarithm of the flux
* MOXC - 0.5 - 8.0 keV, the apparent (observed) energy flux of the
source, as defined as the sum of the maximum apparent energy
flux in the soft band and the maximum apparent energy flux in
the hard band
* MYSTIXXRAY - 0.5 - 8.0 keV, corrected for absorption
* NARCSCAT - 0.5 - 10.0 keV, calculated by multiplying the full-band photon
flux and the source's median energy as provided in the catalog
* NGC2024CXO - 0.5 - 7.0 keV
* NGC2264CXO - 0.3 - 8.0 keV
* NGC2264CX2 - 0.5 - 7.0 keV, calculated from Crab units, assuming a Crab-like
spectrum
* NGC2403CX2 - 0.35 - 8.0 keV, unabsorbed
* NGC2516CXO - 0.1 - 4.0 keV, computed for an assumed distance of 387 pc
* NGC2516XMM - 0.3 - 7.9 keV
* NGC2808CXO - 0.5 - 8.0 keV, unabsorbed
* NGC2808XMM - 0.5 - 10.0 keV; the authors calculated the unabsorbed flux
from the count rate using energy conversion factors (ECFs)
* NGC300CXO - 0.35 - 8.0 keV, unabsorbed
* NGC3115CXO - 0.5 - 7.0 keV, converted from the count rate
* NGC404CXO - 0.35 - 8.0 keV, unabsorbed
* NGC4214CXO - 0.35 - 8.0 keV, unabsorbed
* NGC4472CXO - 2.0 - 8.0 keV, based on model
* NGC55CXO - 0.35 - 8.0 keV, unabsorbed
* NGC6231CX2 - 0.5 - 8.0 keV, absorption-corrected
* NGC6791CXO - 0.3 - 7.0 keV, corrected for absorption and converted from net
count rates
* NORAS - see below for more information
* NUCOSMOSFC - 3 - 24 keV, corrected for aperture and calculated from the
count rate
* NUECDFSCAT - 3 - 24 keV, calculated from the deblended, net count rate
* NUSTARSSC - 3 - 24 keV, calculated from the deblended, net count rate
* NUSTARSSC2 - 3 - 24 keV, calculated from the deblended, net count rate
* NWAYAWGROS - 0.1 - 2.4 keV, computed as in Dwelly et al. (2017, MNRAS,
469, 1065)
* NWAYAWGXMM - 0.2 - 12 keV, the XMMSL2 X-ray source flux in band 8
* OMC2P3CXO - see below for more information
* OMEGCENCX2 - 0.5 - 6.0 keV, as derived from a power law model
* ORIONFFCXO - 0.3 - 8.0 keV; the authors used the X-ray fluxes of the bright
sources obtained from a spectral analysis using 2-T absorbed
XSMEKAL thermal emission models to compute X-ray flux-weighted
conversion factors between count rates and X-ray fluxes for all
of the sources in each field
* PLEIADXRAY - 0.16 - 4.0 keV, computed for an assumed distance of 127 pc
* RASS2FXRAY - 0.1 - 2.4 keV, the observed (not extinction corrected!) flux
* RASS2RXS - the absorption-corrected flux derived from the power law fit to
the source spectrum
* RASS6DFGS - 0.1 - 2.4 keV, the unabsorbed RASS flux, calculated from the
HEASARC PIMMS tool using a fixed photon index of 1.7 and the
Galactic Hydrogen column density
* RASSASASPV - 0.1 - 2.0 keV, calculated from the ROSAT BSC count rate (CR)
using the formula: flux = CR * ECF, where ECF is an individual
energy-conversion factor based on the hardness ratio (HR1) of
the source given by ECF = (5.31 x HR + 8.31) x 10-12
erg/cm2/ct
* RASSBSCPGC - 0.1 - 2.4 keV, calculated from the logarithm of the flux
* RASSCNS3 - 0.1 - 2.4 keV, using an energy conversion factor (ECF) to
convert the count rate in this bandpass to an X-ray flux
calculated using the formula ECF = (5.30 x HR + 8.31) x
10-12 erg/cm2/ct
* RASSDSSAGN - 0.1 - 2.4 keV, corrected for absorption within the Galaxy
* RASSDSSTAR - 0.1 - 2.4 keV, calculated from the count rate (CR) using the
formula: flux = CR * ECF, where ECF is 1.0 x 10-11 erg/cm2/ct
* RASSDWARF - 0.1 - 2.4 keV, calculated from the count rate (CR) using the
formula: flux = CR * ECF, where ECF is an individual
energy-conversion factor based on the hardness ratio (HR) of the
source given by ECF = (5.30 x HR + 8.31) x 10-12 erg/cm2/ct
* RASSEBCS - 0.1 - 2.4 keV
* RASSFIRST - 0.1 - 2.4 keV, obtained from the measured count rates by
assuming an average photon index of Gamma = 2.2 for the
underlying X-ray spectrum and the Galactic absorption
* RASSGIANT - 0.1 - 2.4 keV
* RASSSDSSGC - 0.1 - 2.4 keV, converted from the source count rates
* RBS - 0.5 - 2.0 keV, assuming a power-law spectrum with a photon
index of 2
* RBSCNVSS - 0.1 - 2.4 keV
* RCW108CXO - 0.3 - 8.0 keV, absorption-corrected, derived from the best-fit
spectral model
* RCW38CXO2 - 0.3 - 8.0 keV, total unabsorbed (absorption-corrected)
* RCW49CXO - 0.5 - 8.0 keV, estimated
* REFLEX - 0.1 - 2.4 keV, corrected for column density, X-ray temperature,
and K-correction effects
* RIXOS - 0.5 - 2.0 keV
* RHOOPHCXO - 0.5 - 9.0 keV
* ROMABZCAT - 0.1 - 2.4 keV, mostly taken from the ROSAT Archive
* ROS13HRCXO - 0.5 - 7.0 keV, calculated assuming a power-law spectrum with
an energy spectral index of 0.4 and a Galactic absorption of
6.5 x 1019 cm-2
* ROS13HRXMM - 0.2 - 10.0 keV, obtained from the sum of the individual band
fluxes
* ROS400GCLS - 0.5 - 2.0 keV, total unabsorbed X-ray flux
* ROSATHARD - 0.5 - 2.0 keV
* ROSATRLQ - 0.1 - 2.4 keV, assuming a power-law spectrum and unabsorbed,
i.e., the flux which would have been measured without any
interstellar absorption
* ROSATRQQ - 0.1 - 2.4 keV, assuming a power-law spectrum and unabsorbed,
i.e., the flux which would have been measured without any
interstellar absorption
* ROSGALCLUS - 0.5 - 2 keV, total unabsorbed X-ray flux in the observer frame
* ROSNEPAGN - 0.5 - 2 keV, total unabsorbed X-ray flux in the rest frame
* ROSNEPXRAY - 0.5 - 2 keV, total unabsorbed X-ray flux
* ROXA - 0.1 - 2.4 keV, ROSAT All-Sky Survey X-ray flux
* SA57XMM - 0.5 - 10 keV
* SACSTPSCAT - 0.5 - 8 keV, corrected for the finite aperture using the PSF
for point sources
* SACSHPSCAT - 2 - 8 keV, corrected for the finite aperture using the PSF
for point sources
* SACSSPSCAT - 0.5 - 2 keV, corrected for the finite aperture using the PSF
for point sources
* SACSSESCAT - 0.5 - 2 keV, corrected for the finite aperture using a beta
model fit for extended sources
* SAX2TO10 - 2 - 10 keV, calculated assuming a power-law spectrum with an
energy index of 0.7
* SAXHELLASR - 5 - 10 keV
* SAXWFCCAT - 2 - 10 keV, flux-weighted mean of the unabsorbed flux from all
detections of the X-ray source
* SAXWFCCAT2 - 3 - 17 keV, roughly converted from mCrab to cgs units using the
multiplicative factor 2.0E-11
* SELHCGCXO - 0.5 - 8 keV, from Chandra
* SDSSCXOQSO - 0.5 - 8 keV, from Chandra
* SDSSXMMQSO - 2 - 10 keV, in the observed frame
* SDSSS82CXO - 0.5 - 7 keV, from Chandra
* SDSSS82XMM - 0.5 - 10 keV, from XMM-Newton
* SFGALHMXB - 0.5 - 8 keV, calculated from the logarithm of the flux
* SFINCSXRAY - 0.5 - 8 keV, calculated from the logarithm of the flux (after
being corrected for absorption)
* SIXSRVCAT - 18 - 55 keV
* SMCDFSCXO - 0.5 - 8 keV
* SMCPSCXMM - 0.2 - 12.0 keV, total flux from XMM-Newton
* SMCWINGCXO - 0.5 - 8 keV, from Chandra
* SPICESCXO - 2 - 10 keV, from Chandra
* SSA22CXO - the observed-frame Chandra flux of the X-ray source in the
full band (0.5 - 8 keV); quoted fluxes have been computed
using the counts and the corresponding exposure time and
spectral slope
* SWBAT105M - 14 - 195 keV, from Swift-BAT
* SWIRECXO - 0.5 - 8 keV, from Chandra
* SWIRELHCXO - 0.3 - 8 keV, calculated from the count rate (CR) using the
formula: flux = CR * ECF, where ECF is the energy conversion
factor determined using a single power-law model
* SWSDSSQSO - the unabsorbed 0.3 - 10 keV Swift/XRT flux
* TARTARUS - 2 - 10 keV (excluding 5 - 7.5 keV), the SIS0 flux of the
best-fitting absorbed power-law model
* ULXRBCAT - variable bandpass, see below for more information
* UPPRSCOXMM - 0.5 - 8.0 keV
* VLULXCAT - 0.3 - 8.0 keV
* WARPS - 0.5 - 2.0 keV
* WARPS2 - 0.5 - 2.0 keV
* WGACAT - 0.05 - 2.5 keV
* XBOOTES - 0.5 - 7 keV
* XDEEP2 - 0.5 - 7 keV
* XMDSVVDS4S - 0.5 - 2 keV
* XMMATLAS - 0.5 - 8 keV, a weighted average of the three XMM-Newton
cameras and derived using count-rate-to-flux conversion
factors with an assumed power-law spectrum
* XMMCDFS210 - 2 - 10 keV
* XMMCDFS510 - 5 - 10 keV
* XMMCFRSCAT - 0.5 - 10 keV
* XMMCOSMOS - 2 - 10 keV
* XMMLSSDEEP - 2 - 10 keV
* XMMOBSTARS - 0.5 - 10 keV
* XMMSDSSGCE - 0.5 - 2.0 keV
* XMMSDSSGCS - 0.5 - 2.0 keV
* XMMSSC - 0.2 - 12 keV, for the combined EPIC detection only
* XMMSSCLWBS - the maximum flux in the 0.2 - 12 keV range
* XMMSLEWCLN - 0.2 - 12 keV
* XMMSLEWEGS - 0.2 - 12 keV
* XMMSTACK - 0.2 - 12 keV, for the combined EPIC detection only
* XMMVARAGN - 0.5 - 4.5 keV, calculated from the logarithm of the average flux
* XMS - 2 - 10 keV
* XSHZAGNCXO - 0.5 - 2 keV, calculated assuming a power-law slope Gamma of 1.8
and the quoted column density
* XWAS - 0.5 - 4.5 keV
For some catalogs, the flux values have been calculated using the following
relation:
flux = lx / (1.20E+38 * distance2)
where lx is the X-ray luminosity in erg/s and the distance is in pc. This
relation is valid for fairly nearby objects. The following is a list of the
catalogs for this relation was used and their respective assumed distances:
* CENACXO - Used the larger of the two X-ray (0.4 - 10 keV) luminosities
(ignoring those values flagged as upper limits) and
3.5 Mpc for the distance to Centaurus A.
* CEPBOB3CXO - Used the absorption-corrected, 0.5 - 8.0 keV X-ray luminosity
and 725 pc for the distance to the Cepheus B star formation
region.
* CMAR1XRAY - Used the logarithm of the 0.4 - 2.4 keV X-ray luminosity
and 1.0 kpc for the distance to CMa R1.
* CYGOB2CXO2 - Used the logarithm of the 0.5 - 8.0 keV X-ray luminosity
and 1.45 kpc for the distance to Cygnus OB2.
* CG12CXO - Used the absorption-corrected, 0.5 - 8 keV X-ray luminosity
and 550 pc for the distance to CG 12.
* CHAINTHCXO - Used the absorption-corrected, 0.5 - 8 keV X-ray luminosity
and 160 pc for the distance to the Cha I North cloud.
* ETGALCXO - Used the 0.3 - 7 keV X-ray luminosity and the known distance
to the specified host galaxy for each source.
* ETGALXRAY - Used the pseudo-bolometric X-ray luminosity
(ignoring those values flagged as upper limits) and
the distance to each galaxy as specified in the table.
* FORNAXCXO - Used the derived X-ray luminosity and 18.6 Mpc for the
distance to Fornax A.
* IC348CXO - Used the extinction-corrected, 0.2 - 10 keV X-ray luminosity
of the source, calculated based on the analysis of the X-ray
spectra as described in Section 5 of Preibisch & Zinnecker
(2002) and assuming a distance of 310 pc to IC 348.
* GC47TUCCXO - Used the 0.5 - 6.0 keV X-ray luminosity and 4850 pc for the
distance to 47 Tuc.
* GC47TUCCX2 - Used the 0.5 - 6.0 keV X-ray luminosity and 4850 pc for the
distance to 47 Tuc.
* IC1396ACXO - Used the logarithm of the 0.5 - 8.0 keV X-ray luminosity and
860 pc for the distance to IC 1396A/Trumpler 37.
* LAMORIXMM - Used the logarithm of the 0.3 - 8.0 keV X-ray luminosity and
400 pc for the distance to Lambda Orionis.
* M16CXO - Used the logarithm of the 0.5 - 8.0 keV X-ray luminosity for
the central observation and 1750 pc for the distance to M 16.
* M17CXO - Used the logarithm of the absorption-corrected, 0.5 - 8.0 keV
X-ray luminosity and 1600 pc for the distance to M 17.
* M31CXO2 - Used the 0.5 - 8 keV X-ray luminosity and 780 kpc for the
distance to M 31.
* M31CXOHRC2 - Used the 0.1 - 10 keV X-ray luminosity and 780 kpc for the
distance to M 31.
* M31XMM2 - Used the X-ray luminosity derived from the best-fit spectral
model for the (first) listed XMM-Newton camera and 760 kpc
for the distance to M 31.
* M33CHASE - Used the 0.35 - 8 keV X-ray luminosity and 817 kpc for the
distance to M 33.
* M33CXOXRAY - Used the total-band, 0.5 - 8.0 keV X-ray luminosity and
0.840 Mpc for the distance to M 33 as given in Grimm
et al. (2005).
* M51CXO2 - Used the 0.35 - 8.0 keV X-ray luminosity and 7.6 Mpc for the
distance to M 51.
* M81CXO - Used the 0.3 - 8.0 keV X-ray luminosity and 3.6 Mpc for the
distance to M 81.
* M81CXO2 - Used the 0.5 - 8.0 keV X-ray luminosity and 3.63 Mpc for the
distance to M 81.
* M83CXO - Used the 0.35 - 8.0 keV X-ray luminosity and 4.61 Mpc for the
distance to M 83.
* M87CXO - Used the 0.3 - 10.0 keV X-ray luminosity and 16 Mpc for the
distance to M 87.
* NAPEXMMCXO - Used the 0.4 - 7.9 keV X-ray luminosity and 560 pc for the
distance to the star-formation complex.
* NGC1068CXO - Used the logarithm of the 0.4 - 5.0 keV X-ray luminosity and
14.4 Mpc for the assumed distance to NGC 1068.
* NGC1291CXO - Used the total-band 0.5 - 8.0 keV X-ray luminosity, corrected
for the estimated interstellar absorption, and a distance to
NGC 1291 of 8.9 Mpc.
* NGC1332CXO - Used the 0.3 - 7.0 keV X-ray luminosity, estimated from fitting
the spectra, and a distance to NGC 1332 of 23 Mpc.
* NGC1333CXO - Used the total-band 0.5 - 8.0 keV X-ray luminosity, corrected
for the estimated interstellar absorption, and a distance to
NGC 1333 of 318 pc.
* NGC1600CXO - Used the 0.3 - 10.0 keV X-ray luminosity and a distance to
NGC 1600 of 59.98 Mpc.
* NGC1893CXO - Used the logarithm of the 0.5 - 8.0 keV X-ray luminosity and
3600 pc for the distance to NGC 1893.
* NGC2237CXO - Used the absorption-corrected, 0.5 - 8.0 keV X-ray luminosity
and 1400 pc for the distance to NGC 2237.
* NGC2244CXO - Used the absorption-corrected, 0.5 - 8.0 keV X-ray luminosity
and 1400 pc for the distance to NGC 2244.
* NGC2264XMM - Used the 0.3 - 15 keV X-ray luminosity and 800 pc for the
distance to NGC 2264.
* NGC2403CXO - Used the 0.5 - 2.0 keV X-ray luminosity and 3.2 Mpc for the
distance to NGC 2403.
* NGC2362CXO - Used the 0.2 - 4.0 keV X-ray luminosity and 1500 pc for the
distance to NGC 2362.
* NGC253XMM - Used the best-fitting X-ray luminosity and 4.0 Mpc for the
distance to NGC 253.
* NGC2547XMM - Used the 0.3 - 3 keV X-ray luminosity and 417 pc for the
distance to NGC 2547.
* NGC2903CXO - Used the 0.5 - 8.0 keV X-ray luminosity and 8.9 Mpc for the
distance to NGC 2903.
* NGC4278CXO - Used the 0.3 - 8.0 keV X-ray luminosity and 16.1 Mpc for the
distance to NGC 4649.
* NGC4365CXO - Used the 0.3 - 10.0 keV X-ray luminosity and 20.4 Mpc for the
distance to NGC 4365.
* NGC4382CXO - Used the 0.3 - 10.0 keV X-ray luminosity and 18.5 Mpc for the
distance to NGC 4382.
* NGC4636CXO - Used the 0.5 - 2.0 keV X-ray luminosity and 15.0 Mpc for the
distance to NGC 4636.
* NGC4649CXO - Used the 0.3 - 10.0 keV X-ray luminosity and 16.8 Mpc for the
distance to NGC 4649.
* NGC4649CX2 - Used the 0.3 - 8.0 keV X-ray luminosity and 16.5 Mpc for the
distance to NGC 4649.
* NGC6231CXO - Used the 0.3 - 8.0 keV X-ray luminosity and 1585 pc for the
distance to NGC 6231.
* NUGALCEN - Used the 10 - 40 keV X-ray luminosity and 8 kpc for the
distance.
* OMC2P3CXO - Used the absorption-corrected, 0.5 - 8.0 keV X-ray luminosity
and 450 pc for the distance to OMC-2/OMC-3.
* ROSETTECXO - Used the absorption-corrected, 2 - 8 keV X-ray luminosity and
1400 pc for the distance to Rosette Molecular Cloud.
* S254258CXO - Used the logarithm of the 0.5 - 8.0 keV X-ray luminosity
and 1.6 kpc for the distance to the S254/S258 region.
* SIGORIXMM - Used the 0.3 - 8.0 keV X-ray luminosity and 352 pc for the
distance to the Sigma Orionis cluster.
* ULXNGCAT - Used the unabsorbed 0.3-10.0 keV luminosity of the source and
the distance parameter in ULXNGCAT.
* ULXRBCAT - The bandpass is variable; refer to the lower_energy and
upper_energy parameters in ULXRBCAT. The distance used is also
variables and comes from the distance parameter in ULXRBCAT.
* W40SFRCXO - Used the intrinsic (absorption-corrected) 0.5 - 8.0 keV X-ray
luminosity, as inferred from XSPEC fitting of the observed
X-ray spectrum, and 600 pc for the distance to W 40.
For NORAS, the flux values are the final calculated "corrected" X-ray flux
values, using the best estimate for the temperature of the source and the
redshift of the spectrum but not the estimated missing flux from outside the
radius of significant X-ray emission.
Exposure
The exposure time of the observation, in seconds.
Class
The BROWSE object classification, if available.
Observatory
The name of the observatory or mission which originated the entry.
Contact Person
Questions regarding the XRAY database table can be addressed to the HEASARC Help Desk.Page Author: Browse Software Development Team
Last Modified: Thursday, 03-Oct-2024 18:38:54 EDT
- HEASARC Director: Dr. Andy Ptak
- NASA Official: Dr. Andy Ptak
- Web Curator: J.D. Myers
- Last Modified: 3-Oct-2024