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We report on a search for faint (R total magnitude fainter than 21) and lowsurface brightness galaxies (R central surface brightness fainter than ~24)(fLSBs) in a 0.72x0.82 deg2 area centered on the Coma cluster. We analyzed deepB and R band CCD imaging obtained using the CFH12K camera at CFHT and found 735fLSBs. The total B magnitudes, at the Coma cluster redshift, range from -13 to-9 with B central surface brightness as faint as 27 mag/arcsec2. Using emptyfield comparisons, we show that most of these fLSBs are probably inside theComa cluster. We present the results of comparing the projected fLSBdistributions with the distributions of normal galaxies and with known X-rayover densities. We also investigate their projected distribution relative totheir location in the color magnitude relation. Colors of fLSBs vary betweenB-R~0.8 and ~1.4 for 2/3 of the sample and this part is consistent with theknown CMR red-sequence for bright (R<18) ellipticals in Coma. These fLSBs arelikely to have followed the same evolution as giant ellipticals, which isconsistent with a simple feedback/collapse formation and a passive evolution.These fLSBs are mainly clustered around NGC4889. We found two other distinctfLSB populations. These populations have respectively redder and bluer colorscompared to the giant elliptical red-sequence and possibly formed from strippedfaint ellipticals and material stripped from spiral in-falling galaxies.

A deep wide survey of faint low surface brightness galaxies in the direction of the Coma cluster of galaxies