Small Magellanic Cloud ATCA 8640-MHz Source Catalog

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<sup>h</sup> 26<sup>m</sup> to 01<sup>h</sup> 27<sup>m</sup> in RA (J2000.0) and from -70<sup>o</sup> 35' to -75<sup>o</sup> 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. This table was created by the HEASARC in September 2014 based on CDS Catalog J_other/Ser/184.93/ file tablea1.dat. This is a service provided by NASA HEASARC .

Data and Resources

Additional Info

Field Value
Maintainer HEASARC Help Desk
Last Updated September 14, 2026, 22:27 (UTC)
Created April 1, 2025, 13:13 (UTC)
accessLevel public
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harvest_source_title Science Discovery Engine
identifier ivo://nasa.heasarc/smc8640mhz
landingPage ivo://nasa.heasarc/smc8640mhz
license https://www.usa.gov/government-works
modified 2026-09-07T22:15:59Z
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publisher High Energy Astrophysics Science Archive Research Center
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