THE VLA-COSMOS SURVEY. IV. DEEP DATA AND JOINT CATALOG

被引:195
作者
Schinnerer, E. [1 ]
Sargent, M. T. [1 ]
Bondi, M. [2 ]
Smolcic, V. [3 ]
Datta, A. [4 ]
Carilli, C. L. [4 ]
Bertoldi, F. [3 ]
Blain, A. [5 ]
Ciliegi, P. [6 ]
Koekemoer, A. [7 ]
Scoville, N. Z. [5 ]
机构
[1] Max Planck Inst Astron, D-69117 Heidelberg, Germany
[2] INAF Ist Radioastron, I-40129 Bologna, Italy
[3] Univ Bonn, Argelander Inst Astron, D-53121 Bonn, Germany
[4] Natl Radio Astron Observ, Socorro, NM 87801 USA
[5] CALTECH, Pasadena, CA 91125 USA
[6] INAF Osservatorio Astron Bologna, I-40127 Bologna, Italy
[7] Space Telescope Sci Inst, Baltimore, MD 21218 USA
关键词
cosmology: observations; radio continuum: galaxies; surveys; RADIO-SOURCE POPULATION; EVOLUTION SURVEY COSMOS; FIELD-SOUTH REGION; HUBBLE-DEEP; SOURCE COUNTS; GALAXIES; 1ST; IDENTIFICATIONS; REDSHIFT; RELEASE;
D O I
10.1088/0067-0049/188/2/384
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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 4 sigma with 1 sigma approximate to 12 mu Jy beam(-1) in the central 50' x 50'. This new catalog is combined with the catalog from the Large project (obtained at 1.'' 5 x 1.'' 4 resolution) to construct a new Joint catalog. All sources listed in the new Joint catalog have peak flux densities of >= 5 sigma 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.
引用
收藏
页码:384 / 404
页数:21
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