Abstract
Using the Australia Telescope Compact Array (ATCA), ATLAS (Australia Telescope Large Area Survey) is imaging two fields totalling 7 square degrees down to 10 μJy beam − 1 at 1.4 GHz. We have found 6 wide-angle tail galaxies (WATs), 4 of which have sufficient data to identify associated galaxy overdensities. The largest WAT, at a red-shift of 0.22, appears to be associated with an overdensity of galaxies that is spread over an unusually large extent of 12 Mpc, with a velocity range of 4500 km s − 1. Here we present the WATs in ATLAS and discuss the implications of these observations for future large-scale radio surveys such as ASKAP-EMU.
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Mao, M.Y., Sharp, R., Saikia, D.J. et al. ATLAS, and Wide-Angle Tail Galaxies in ATLAS. J Astrophys Astron 32, 585–588 (2011). https://doi.org/10.1007/s12036-011-9115-3
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DOI: https://doi.org/10.1007/s12036-011-9115-3