ATLAS, and Wide-Angle Tail Galaxies in ATLAS

Minnie Y. Mao; Rob Sharp; D. J. Saikia; Ray P. Norris; Melanie Johnston-Hollitt; Enno Middelberg; Jim E.J. Lovell

doi:10.1007/s12036-011-9115-3

ATLAS, and Wide-Angle Tail Galaxies in ATLAS

Minnie Y. Mao, Rob Sharp, D. J. Saikia, Ray P. Norris, Melanie Johnston-Hollitt, Enno Middelberg, Jim E.J. Lovell

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

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.

Original language	English
Pages (from-to)	585-588
Number of pages	4
Journal	Journal of Astrophysics and Astronomy
Volume	32
Issue number	4
DOIs	https://doi.org/10.1007/s12036-011-9115-3
Publication status	Published - Dec 2011
Externally published	Yes

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title = "ATLAS, and Wide-Angle Tail Galaxies in ATLAS",

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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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 - 2011/12

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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.

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KW - clusters

KW - distances and red-shifts

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JF - Journal of Astrophysics and Astronomy

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ER -

ATLAS, and Wide-Angle Tail Galaxies in ATLAS

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