SIMBAD references

2009ApJS..184..158E - Astrophys. J., Suppl. Ser., 184, 158-171 (2009/September-0)

The Chandra COSMOS survey. I. Overview and point source catalog.

ELVIS M., CIVANO F., VIGNALI C., PUCCETTI S., FIORE F., CAPPELLUTI N., ALDCROFT T.L., FRUSCIONE A., ZAMORANI G., COMASTRI A., BRUSA M., GILLI R., MIYAJI T., DAMIANI F., KOEKEMOER A.M., FINOGUENOV A., BRUNNER H., URRY C.M., SILVERMAN J., MAINIERI V., HASINGER G., GRIFFITHS R., CAROLLO M., HAO H., GUZZO L., BLAIN A., CALZETTI D., CARILLI C., CAPAK P., ETTORI S., FABBIANO G., IMPEY C., LILLY S., MOBASHER B., RICH M., SALVATO M., SANDERS D.B., SCHINNERER E., SCOVILLE N., SHOPBELL P., TAYLOR J.E., TANIGUCHI Y. and VOLONTERI M.

Abstract (from CDS):

The Chandra COSMOS Survey (C-COSMOS) is a large, 1.8 Ms, Chandra program that has imaged the central 0.5 deg2 of the COSMOS field (centered at 10^ h ^, +02^ o ^) with an effective exposure of ∼160 ks, and an outer 0.4 deg2 area with an effective exposure of ∼80 ks. The limiting source detection depths are 1.9x10–16 erg/cm2/s in the soft (0.5-2 keV) band, 7.3 x10–16 erg/cm2/s in the hard (2-10 keV) band, and 5.7x10–16 erg/cm2/s in the full (0.5-10 keV) band. Here we describe the strategy, design, and execution of the C-COSMOS survey, and present the catalog of 1761 point sources detected at a probability of being spurious of <2x10–5 (1655 in the full, 1340 in the soft, and 1017 in the hard bands). By using a grid of 36 heavily (∼50%) overlapping pointing positions with the ACIS-I imager, a remarkably uniform (±12%) exposure across the inner 0.5 deg2 field was obtained, leading to a sharply defined lower flux limit. The widely different point-spread functions obtained in each exposure at each point in the field required a novel source detection method, because of the overlapping tiling strategy, which is described in a companion paper. This method produced reliable sources down to a 7-12 counts, as verified by the resulting logN-logS curve, with subarcsecond positions, enabling optical and infrared identifications of virtually all sources, as reported in a second companion paper. The full catalog is described here in detail and is available online.

Abstract Copyright:

Journal keyword(s): catalogs - cosmology: observations - galaxies: evolution - quasars: general - surveys - X-rays: general

VizieR on-line data: <Available at CDS (J/ApJS/184/158): table3.dat catalog.dat>

Nomenclature: Catalog, col(1): CXOC JHHMMSS.s+DDMMSS N=1761 = Catalog, col(2): [ECV2009] NNNNN N=1761 among (Nos 1-22962).

Simbad objects: 1766

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2019.12.13-14:47:44

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