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

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 deg² 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) deg². 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.