TY - JOUR
T1 - ATLAS, and wide-angle tail galaxies in ATLAS
AU - Mao, Minnie Y.
AU - Sharp, Rob
AU - Saikia, D. J.
AU - Norris, Ray P.
AU - Johnston-Hollitt, Melanie
AU - Middelberg, Enno
AU - Lovell, Jim E. J.
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
UR - http://handle.uws.edu.au:8081/1959.7/549620
U2 - 10.1007/s12036-011-9115-3
DO - 10.1007/s12036-011-9115-3
M3 - Article
SN - 0250-6335
VL - 32
SP - 585
EP - 588
JO - Journal of Astrophysics and Astronomy
JF - Journal of Astrophysics and Astronomy
IS - 4
ER -