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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Radio imaging of the Subaru/XMM-Newton Deep Field -I. The 100-μJy catalogue, optical identifications, and the nature of the faint radio source population
Monthly Notices of the Royal Astronomical Society, Volume 372, No. 2, Year 2006
Notification
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Description
We describe deep radio imaging at 1.4 GHz of the 1.3-deg2 Subaru/XMM-Newton Deep Field (SXDF), made with the Very Large Array in B and C configurations. We present a radio map of the entire field, and a catalogue of 505 sources covering 0.8 deg2 to a peak flux density limit of 100 μJy. Robust optical identifications are provided for 90 per cent of the sources, and suggested identifications are presented for all but 14 (of which seven are optically blank, and seven are close to bright contaminating objects). We show that the optical properties of the radio sources do not change with flux density, suggesting that active galactic nuclei (AGN) continue to contribute significantly at faint flux densities. We test this assertion by cross-correlating our radio catalogue with the X-ray source catalogue and conclude that radio-quiet AGN become a significant population at flux densities below 300 μJy, and may dominate the population responsible for the flattening of the radio source counts if a significant fraction of them are Compton-thick. © 2006 RAS.
Authors & Co-Authors
Simpson, Chris J.S.M.
United Kingdom, Liverpool
Liverpool John Moores University
United Kingdom, Durham
Durham University
Martínez-Sansigre, Alejo M.S.
United Kingdom, Oxford
University of Oxford
Rawlings, Steve G.
United Kingdom, Oxford
University of Oxford
Ivison, Robert J.
United Kingdom, Edinburgh
Uk Astronomy Technology Centre
United Kingdom, Edinburgh
The University of Edinburgh
Akiyama, Masayuki
Japan, Mitaka
National Institutes of Natural Sciences - National Astronomical Observatory of Japan
Sekiguchi, Kazuhiro
Japan, Mitaka
National Institutes of Natural Sciences - National Astronomical Observatory of Japan
Ueda, Yoshihiro
Japan, Kyoto
Kyoto University
Watson, Mike G.
United Kingdom, Leicester
University of Leicester
Statistics
Citations: 173
Authors: 8
Affiliations: 8
Identifiers
Doi:
10.1111/j.1365-2966.2006.10907.x
ISSN:
00358711
Study Design
Cross Sectional Study