Volume 451, Number 3, June I 2006
|Page(s)||1159 - 1170|
|Section||Online catalogs and data|
|Published online||04 May 2006|
Deep and wide field imaging of the Coma cluster: the data
LAM, Traverse du Siphon, 13012 Marseille, France e-mail: email@example.com
2 Observatoire Midi-Pyrénées, 14 Av. Édouard Belin, 31400 Toulouse, France
3 Department of Physics and Astronomy, University of Hawaii, 200 West Kawili Street, Hilo HI 96720-4091, USA
4 Canada-France-Hawaii Telescope Corporation, 65-1238 Mamalahoa Highway, Kamuela, HI 96743, USA
5 INAF/Osservatorio Astronomico di Trieste, via G.B. Tiepolo, 11, 34131 Trieste, Italy
6 Department of Astronomy, Caltech, MS 105-24, Pasadena CA 91125, USA
7 Institut d'Astrophysique de Paris, CNRS, Université Pierre et Marie Curie, 98bis Bd Arago, 75014 Paris, France
8 Observatoire de Paris, LERMA, 61 Av. de l'Observatoire, 75014 Paris, France
9 University of Wisconsin, Department of Astronomy, 475 N. Charter St., Madison, WI 53706, USA
10 Department of Physics, University of California at Davis, 1 Shields Avenue, Davis, CA 95616, USA
11 Northwestern University, 2131 Sheridan, 60208-2900 Evanston, USA
Accepted: 5 December 2005
We have obtained deep and wide field imaging of the Coma cluster of galaxies with the CFH12K camera at CFHT in the B, V, R and I filters. In this paper, we present the observations, data reduction, catalogs and first scientific results. We investigated the quality of our data by internal and external literature comparisons. We also checked the realisation of the observational requirements we set. Our observations cover two partially overlapping areas of arcmin2, leading to a total area of deg2. We have produced catalogs of objects that cover a range of more than 10 mag. and are complete at the 90% level at , , and for stellar-like objects, and at , , and for faint low-surface-brightness galaxy-like objects. Magnitudes are in good agreement with published values from to . The photometric uncertainties are of the order of 0.1 mag at and of 0.3 mag at . Astrometry is accurate to 0.5 arcsec and also in good agreement with published data. Our catalog provides a rich dataset that can be mined for years to come to gain new insights into the formation and evolution of the Coma cluster and its galaxy population. As an illustration of the data quality, we examine the bright part of the Colour Magnitude Relation ( versus R) derived from the catalog and find that it is in excellent agreement with that derived for galaxies with redshifts in the Coma cluster, and with previous CMRs estimated in the literature.
Key words: galaxies: clusters: individual: Coma / catalogs
© ESO, 2006
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