Issue |
A&A
Volume 449, Number 3, April III 2006
|
|
---|---|---|
Page(s) | 951 - 968 | |
Section | Extragalactic astronomy | |
DOI | https://doi.org/10.1051/0004-6361:20053979 | |
Published online | 24 March 2006 |
The GOODS-MUSIC sample: a multicolour catalog of near-IR selected galaxies in the GOODS-South field
1
INAF - Osservatorio Astronomico di Roma, via Frascati 33, 00040 Monteporzio, Italy e-mail: fontana@mporzio.astro.it
2
INAF - Osservatorio Astronomico di Trieste, via G.B. Tiepolo 11, 34131 Trieste, Italy
Received:
3
August
2005
Accepted:
17
November
2005
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
,
,
and
ACS images, the
VLT data, the Spitzer data provided by IRAC instrument (3.6, 4.5, 5.8 and 8.0
), 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
-selected objects,
yielding a unique, self-consistent catalog. The largest fraction of the sample is 90% complete
at
or
(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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