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Deep ATLAS Radio Observations of the Chandra Deep Field?South/SpitzerWide?Area Infrared Extragalactic Field
Author(s) -
R. P. Norris,
J. Afonso,
P. N. Appleton,
Brian J. Boyle,
P. Ciliegi,
S. M. Croom,
Minh Huynh,
Carole Jackson,
Anton M. Koekemoer,
Carol J. Lonsdale,
E. Middelberg,
Bahram Mobasher,
Seb Oliver,
M. Polletta,
Brian Siana,
Ian Smail,
Maxim Voronkov
Publication year - 2006
Publication title -
the astronomical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.61
H-Index - 271
eISSN - 1538-3881
pISSN - 0004-6256
DOI - 10.1086/508275
Subject(s) - physics , astrophysics , redshift , infrared , galaxy , astronomy , photometry (optics) , luminous infrared galaxy , active galactic nucleus , star formation , population , chandra deep field south , photometric redshift , stars , demography , sociology
We present the first results from the Australia Telescope Large Area Survey(ATLAS), which consist of deep radio observations of a 3.7 square degree fieldsurrounding the Chandra Deep Field South, largely coincident with the infraredSpitzer Wide-Area Extragalactic (SWIRE) Survey. We also listcross-identifications to infrared and optical photometry data from SWIRE, andground-based optical spectroscopy. A total of 784 radio components areidentified, corresponding to 726 distinct radio sources, nearly all of whichare identified with SWIRE sources. Of the radio sources with measuredredshifts, most lie in the redshift range 0.5-2, and include both star-forminggalaxies and active galactic nuclei (AGN). We identify a rare population ofinfrared-faint radio sources which are bright at radio wavelengths but are notseen in the available optical, infrared, or X-ray data. Such rare classes ofsources can only be discovered in wide, deep surveys such as this.Comment: Accepted by A

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