HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.

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ACTIVE MISSIONS
   AstroSat    BurstCube
   CALET    Chandra
   Fermi    HXMT-Insight
   INTEGRAL    IXPE
   MAXI    NICER
   NuSTAR    SRG  eROSITA
   /ART-XC
   Swift    XMM-Newton
   XRISM    
PAST MISSIONS
   AGILE    ANS
   ARIEL V    ASCA
   BBXRT    BeppoSAX
   CGRO    COPERNICUS
   COS-B    DXS
   EINSTEIN    EUVE
   EXOSAT    GINGA
   GRANAT    HaloSat
   HAKUCHO    HEAO-1
   HEAO-3    HETE-2
   Hitomi    OSO-7
   OSO-8    ROSAT
   Rossi XTE    SAS-2
   SAS-3    Suzaku
   TENMA    UHURU
   VELA 5B     WASS
   XQC    

ASCA: The Advanced Satellite for Cosmology and Astrophysics

ASCA Logo
The Advanced Satellite for Cosmology and Astrophysics (ASCA), is Japan’s fourth cosmic X-ray astronomy mission, and the second for which the United States is providing part of the scientific payload. The satellite was successfully launched on February 20, 1993. ASCA operated successfully till July 15 2000 when it was tranferred into a safe-hold mode. The satellite re-entered on March 2 2001 after 7 and half years of scientific observations. ASCA was the first satellite to use CCD detectors for X-ray astronomy.

Mission Characteristics

* Lifetime : February 20, 1993 - March 2, 2001
* Energy Range : 0.4 - 10 keV
* Special Features : First X-ray mission to combine imaging capability with broad pass band, good spectral resolution, and a large effective area
* Payload :
  • Four X-ray telescopes each composed of 120 nested gold-coated aluminum foil sufaces (total eff area 1,300 cm2 @ 1 keV, spatial resolution 3´ half power diameter, FOV 24´ @ 1 keV) working in conjunction with one of the following detectors:
    • a Gas Imaging Spectrometer (GIS; 0.8-12 keV)
      Two Imaging Gas Scintillation Proportional Counters (IGSPC)
      FOV 50´,
      spatial resolution ~0.5' at 5.9 keV,
      and energy resolution of 8 % at 5.9 keV,
      Eff area (GIS+XRT) 50 cm2 @ 1 keV
    • Solid-state Imaging Spectrometer (SIS; 0.4-12 keV)
      Two CCD arrays of four 420 X 422 square pixel chips,
      FOV 22´ X 22´,
      Spatial resolution 30",
      energy resolution of 2 % at 5.9 keV ,
      Eff area (SIS+XRT) 105 cm2
* Science Highlights:
  • Broad Fe lines from AGN, probing the strong gravity near the central engine
  • Lower than solar Fe abundance in the coronae of active stars
  • Spectroscopy of interacting binaries
  • Non-thermal X-rays from SN 1006, a site of Cosmic Ray acceleration
  • Abundances of heavy elements in clusters of galaxies, consistent with type II supernova origin
* Archive : HEASARC hosts Catalogs, Spectra, Lightcurves, Images and Raw data
[ASCA Guest Observer Facility]
[All Missions] [by Time] [by Energy]
Page authors: Lorella Angelini Jesse Allen
HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public
Last modified: Thursday, 24-Sep-2020 17:57:53 EDT

HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.