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Published June 2010 | Published
Journal Article Open

The VLA-COSMOS Survey. IV. Deep Data and Joint Catalog


In the context of the VLA-COSMOS Deep project, additional VLA A array observations at 1.4 GHz were obtained for the central degree of the COSMOS field and combined with the existing data from the VLA-COSMOS Large project. A newly constructed Deep mosaic with a resolution of 2".5 was used to search for sources down to 4σ with 1σ ≈ 12 μJy beam^(–1) in the central 50' × 50'. This new catalog is combined with the catalog from the Large project (obtained at 1".5 × 1".4 resolution) to construct a new Joint catalog. All sources listed in the new Joint catalog have peak flux densities of ≥5σ at 1".5 and/or 2".5 resolution to account for the fact that a significant fraction of sources at these low flux levels are expected to be slightly resolved at 1".5 resolution. All properties listed in the Joint catalog, such as peak flux density, integrated flux density, and source size, are determined in the 2".5 resolution Deep image. In addition, the Joint catalog contains 43 newly identified multi-component sources.

Additional Information

© 2010 American Astronomical Society. Received 2008 December 19; accepted 2010 April 19; published 2010 May 17. The National Radio Astronomy Observatory (NRAO) is operated by Associated Universities, Inc., under cooperative agreement with the National Science Foundation. We thank the NRAOfor their support during this project.We thank our referee Jim Condon for his insightful comments for improving the paper. C.C. thanks the Max-Planck-Gesellschaft and the Humboldt-Stiftung for support through the Max-Planck-Forschungspreis. C.C. and A.D. acknowledge support through NASA grant HST-GO-09822.33-A. M.T.S. acknowledges support by the German DFG under grant SCHI 536/3-2 and SCHI 536/3-3. V.S. acknowledges support by the German DFG under grant SCHI 536/3-1. This project has been (partially) funded by the DFG Priority Programme 1177 "Galaxy Evolution."

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Published - Schinnerer2010p10598Astrophys_J_Suppl_S.pdf


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