The VLA-COSMOS Survey. II. Source Catalog of the Large Project

Creators: Schinnerer, E.; Smolčić, V.; Carilli, C. L.; Bondi, M.; Ciliegi, P.; Jahnke, K.; Scoville, N. Z.; Aussel, H.; Bertoldi, F.; Blain, A. W.; Impey, C. D.; Koekemoer, A. M.; Le Fèvre, O.; Urry, C. M.

Abstract

The VLA-COSMOS Large Project is described and its scientific objective is discussed. We present a catalog of ~3600 radio sources found in the 2 deg^2 COSMOS field at 1.4 GHz. The observations in the VLA A and C configuration resulted in a resolution of 1.5" × 1.4" and a mean rms noise of ~10.5 (15) μJy beam^(-1) in the central 1 (2) deg^2. Eighty radio sources are clearly extended consisting of multiple components, and most of them appear to be double-lobed radio galaxies. The astrometry of the catalog has been thoroughly tested, and the uncertainty in the relative and absolute astrometry are 130 and <55 mas, respectively.

Additional Information

© 2007 American Astronomical Society. Print publication: Issue 1 (2007 September); received 2006 April 27; accepted for publication 2006 August 1. The National Radio Astronomy Observatory (NRAO) is operated by Associated Universities, Inc., under cooperative agreement with the National Science Foundation. We would like to thank the NRAO for their support during this project with special thanks to Barry Clark and Joan Wrobel. For fruitful discussions we thank Frazer Owen, Jim Condon, Bill Cotton, Andrew Hopkins, and José Afonso. We thank the anonymous referee for constructive comments that helped improve the paper. V. S.'s visit to NRAO was supported by HST-GO-09822.31-A. C. C. thanks the Max-Planck-Gesellschaft and the Humboldt-Stiftung for support through the Max-Planck-Forschungspreis. C. C. acknowledges support through NASA grant HST-GO-09822.33-A. K. J. acknowledges support by the German DFG under grant SCHI 536/3-1. The COSMOS Science meeting in 2005 May was supported in part by the NSF through grant OISE-0456439. The Digitized Sky Survey was produced at the Space Telescope Science Institute under US government grant NAG W-2166. Facilities: VLA

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