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Centro de Astrofísica da Universidade do Porto

A photometric catalogue of the Coma cluster core

C. Lobo, A. Biviano, F. Durret, D. Gerbal, O. Le Fèvre, A. Mazure, E. Slezak

We have obtained a mosaic of CCD images of the Coma cluster in the V-band covering a region of approximately 0.4 degrees2 around both central cluster galaxies NGC 4889 and NGC 4874. An additional frame of ~90 arcmin2 was taken of the south-west region around NGC 4839. We derived a catalogue of 7023 galaxies and 4096 stars containing positions, central surface brightnesses and isophotal V26.5 magnitudes. We estimate that data is complete up to V26.5~22.5 and the surface brightness limiting detection value is mu ~24 mag/arcsec2. In this paper we present the catalogue (available in electronic form alone, along with a detailed description of the steps concerning the data reduction and quality of the computed parameters. The catalogue is only available in electronic form at the CDS via anonymous ftp to ( or via Based on observations collected at the Canada-France-Hawaii telescope, operated by the National Research Council of Canada, the Centre National de la Recherche Scientifique of France, and the University of Hawaii.

Advances in Space Research
Volume 122, Page 409
May 1997

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