The GOODS-MUSIC sample: A multicolour catalog of near-IR selected galaxies in the GOODS-South field

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作者
Grazian, A. [1 ]
Fontana, A. [1 ]
De Santis, C. [1 ]
Nonino, M. [2 ]
Salimbeni, S. [1 ]
Giallongo, E. [1 ]
Cristiani, S. [2 ]
Gallozzi, S. [1 ]
Vanzella, E. [2 ]
机构
[1] INAF, Osservatorio Astronomico di Roma, via Frascati 33, 00040 Monteporzio, Italy
[2] INAF, Osservatorio Astronomico di Trieste, via G.B. Tiepolo 11, 34131 Trieste, Italy
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Astronomy and Astrophysics | 1600年 / 449卷 / 03期
关键词
Aims. We present a high quality multiwavelength (from 0.3 to 8.0 μm) catalog of the large and deep area in the GOODS Southern Field covered by the deep near-IR observations obtained with the ESO VLT. Methods. The catalog is entirely based on public data: in our analysis; we have included the F435W; F606W; F775W and F850LP ACS images; the JHKs VLT data; the Spitzer data provided by IRAC instrument (3.6; 4.5; 5.8; and; 8.0; μm); and publicly available U-band data from the 2.2ESO and VLT-VIMOS. We describe in detail the procedures adopted to obtain this multiwavelength catalog. In particular; we developed a specific software for the accurate PSF-matching of space and ground-based images of different resolution and depth (ConvPhot); of which we analyse performances and limitations. We have included both z-selected; as well as Ks-selected objects; yielding a unique; self-consistent catalog. The largest fraction of the sample is 90% complete at z 26 or Ks 23.8 (AB scale). Finally; we cross-correlated our data with all the spectroscopic catalogs available to date; assigning a spectroscopic redshift to more than 1000 sources. Results. The final catalog is made up of 14 847 objects; at least 72 of which are known stars; 68 are AGNs; and 928 galaxies with spectroscopic redshift (668 galaxies with reliable redshift determination). We applied our photometric redshift code to this data set; and the comparison with the spectroscopic sample shows that the quality of the resulting photometric redshifts is excellent; with an average scatter of only 0.06. The full catalog; which we named GOODS-MUSIC (Multiwavelength Southern Infrared Catalog); including the spectroscopic information; is made publicly available; together with the software specifically designed to this end. © ESO 2006;
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页码:951 / 968
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