SMC8640MHZ - Small Magellanic Cloud ATCA 8640-MHz Source Catalog

Overview

This table contains a new catalog of radio-continuum sources in the field of the Small Magellanic Cloud (SMC). This catalog contains sources found at 8640 MHz (lambda = 3 cm) by combining data from various Australia Telescope Compact Array (ATCA) projects that covered the SMC. Some 457 sources have been detected at 3 cm in the new high-sensitivity and resolution radio-continuum image of the SMC from Crawford et al. (2011, SerAJ, 183, 95).

The 3 cm map has a resolution of 20 arcseconds, and a sensitivity of 0.8 mJy/beam. The field size of the image used in this study covered from 00^h 26^m to 01^h 27^m in RA (J2000.0) and from -70^o 35' to -75^o 21' in Dec (J2000.0). The MIRIAD task 'imsad' was used to detect sources in the 3 cm image, requiring a fitted Gaussian flux density > 5 sigma (3.5 mJy). All sources were then visually examined to confirm that they are genuine point sources, excluding extended emission, bright side lobes, etc.

Catalog Bibcode

2012SerAJ.184...93W

References

New 6 and 3-cm radio-continuum maps of the Small Magellanic Cloud.
Part II. Point source catalogue.
     Wong G.F., Crawford E.J., Filipovic M.D., de Horta A.Y., Tothill N.F.H.,
     Collier J.D., Draskovic D., Galvin T.J., Payne J.L.
    <Serbian Astron. J., 184, 93-95 (2012)>
    =2012SerAJ.184...93W

Provenance

This table was created by the HEASARC in September 2014 based on CDS Catalog J_other/Ser/184.93/ file tablea1.dat.

Parameters

Name
The name of the radio source using the style recommended by the Dictionary of Nomenclature of Celestial Objects, viz., the [WCF2012] prefix (for Wong, Crawford, Filipovic 2012) and the J2000.0 equatorial coordinates truncated to 1 second of time and 1 arcsecond in RA and Dec, respectively.

RA
The Right Ascension of the 8640-MHz radio source in the selected equinox. This was given in J2000.0 equatorial coordinates to a precision of 0.01 seconds of time in the original table.

Dec
The Declination of the 8640-MHz radio source in the selected equinox. This was given in J2000.0 equatorial coordinates to a precision of 0.01 arcseconds in the original table.

LII
The Galactic Longitude of the 8640-MHz radio source.

BII
The Galactic Latitude of the 8640-MHz radio source.

Int_Flux_8640_MHz
The integrated flux density of the 8640-MHz radio source, in mJy.

Contact Person

Questions regarding the SMC8640MHZ database table can be addressed to the HEASARC Help Desk.

Page Author: Browse Software Development Team
Last Modified: Monday, 16-Sep-2024 17:34:59 EDT