Adami, C. and Scheidegger, R. and Ulmer, M. and Durret, F. and Mazure, A. and West, M. J. and Conselice, C. J. and Gregg, M. and Kasun, S. and Pelló, R. and Picat, J. P. (2006) A deep wide survey of faint low surface brightness galaxies in the direction of the Coma cluster of galaxies. Astronomy and Astrophysics, 459 (3). pp. 679-692. ISSN 0004-6361 http://resolver.caltech.edu/CaltechAUTHORS:20101112-132651879
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Aims. We report on a search for faint (R total magnitude fainter than 21) and low surface brightness galaxies (R central surface brightness fainter than ~ 24) (fLSBs) in a 0.72 x 0.82 deg^2 area centered on the Coma cluster. Methods. We analyzed deep B and R band CCD imaging obtained using the CFH12K camera at CFHT and found 735 fLSBs. The total B magnitudes, at the Coma cluster redshift, range from -13 to -9 with B central surface brightness as faint as 27 mag arcsec^(-2). Results. Using empty field comparisons, we show that most of these fLSBs are probably inside the Coma cluster. We present the results of comparing the projected fLSB distributions with the distributions of normal galaxies and with known X-ray over densities. We also investigate their projected distribution relative to their location in the color magnitude relation. Colors of fLSBs vary between B-R ~ 8 and ~ 1.4 for 2/3 of the sample and this part is consistent with the known CMR red-sequence for bright (R ≤ 18) ellipticals in Coma. Conclusions. These fLSBs are likely to have followed the same evolution as giant ellipticals, which is consistent with a simple feedback/collapse formation and a passive evolution. These fLSBs are mainly clustered around NGC 4889. We found two other distinct fLSB populations. These populations have respectively redder and bluer colors compared to the giant elliptical red-sequence and possibly formed from stripped faint ellipticals and material stripped from spiral in-falling galaxies.
|Additional Information:||© 2006 ESO. Accepted 4 July 2005. Received 28 August 2006. Based on observations obtained at the Canada-France-Hawaii Telescope (CFHT) which is operated by the National Research Council of Canada, the Institut National des Sciences de l’Univers of the Centre National de la Recherche Scientifique of France, and the University of Hawaii. The authors thank the referees for useful and constructive comments and are grateful to the CFHT and Terapix teams, and to the French CNRS/PNG for financial support. Some of the authors also acknowledge support from NASA Illinois space grant NGT5-40073, from Northwestern University and from NSF grant AST-0205960.|
|Subject Keywords:||galaxies: clusters: individual: Coma|
|Official Citation:||A deep wide survey of faint low surface brightness galaxies in the direction of the Coma cluster of galaxies C. Adami, R. Scheidegger, M. Ulmer, F. Durret, A. Mazure, M. J. West, C. J. Conselice, M. Gregg, S. Kasun, R. Pelló and J. P. Picat A&A 459 (3) 679-692 (2006) DOI: 10.1051/0004-6361:20053758|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||16 Nov 2010 19:28|
|Last Modified:||26 Dec 2012 12:37|
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