Optical and X-ray Identification of Faint Radio Sources in the GOODS-S ACS Field

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dc.creatorAfonso, J.
dc.creatorMobasher, B.
dc.creatorKoekemoer, A.
dc.creatorNorris, R. P.
dc.creatorCram, L.
dc.date2005-10-27
dc.date.accessioned2026-07-07T11:24:54Z
dc.date.available2026-07-07T11:24:54Z
dc.descriptionWe present optical and X-ray identifications for the sixty-four radio sources in the GOODS-S ACS field revealed in the ATCA 1.4 GHz survey of the Chandra Deep Field South. Optical identifications are made using the ACS images and catalogs, while the X-ray view is provided by the Chandra X-ray Observatory 1 Ms observations. Redshifts for the identified sources are drawn from publicly available catalogs of spectroscopic observations and multi-band photometric-based estimates. Using this multiwavelength information we provide a first characterization of the faint radio source population in this region. The sample contains a mixture of star-forming galaxies and active galactic nuclei, as identified by their X-ray properties and optical spectroscopy. A large number of morphologically disturbed galaxies is found, possibly related to the star-formation phenomena. In spite of the very deep optical data available in this field, seven of the sixty-four radio sources have no optical identification to z(850)~28 mag. Only one of these is identified in the X-rays.
dc.description33 pages, 1 figure + 4 pages of postage stamps. AJ, in press (February 2006 issue). Version with full-resolution figures is available at http://www.oal.ul.pt/~jafonso/astronomy/hires_papers.html
dc.identifierhttps://arxiv.org/abs/astro-ph/0510774
dc.identifierhttp://arxiv.org/abs/astro-ph/0510774
dc.identifierAstron.J.131:1216-1230,2006
dc.identifierdoi:10.1086/498823
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195350
dc.subjectAstrophysics
dc.titleOptical and X-ray Identification of Faint Radio Sources in the GOODS-S ACS Field
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