Astronomy and Astrophysics – Astrophysics
Scientific paper
1997-10-10
Astronomy and Astrophysics
Astrophysics
accepted for publication in A&AS; 7 pages, including 8 figures, Tables are only available in electronic form at the CDS via an
Scientific paper
10.1051/aas:1998128
We present two catalogues of galaxies in the direction of the rich cluster \a85. The first one includes 4,232 galaxies located in a region $\pm 1^\circ$ from the cluster centre. It has been obtained from a list of more than 25,000 galaxy candidates detected by scanning a Schmidt photographic plate taken in the \bj band. Positions are very accurate in this catalogue but magnitudes are not. This led us to perform CCD imaging observations in the V and R bands to calibrate these photographic magnitudes. A second catalogue (805 galaxies) gives a list of galaxies with CCD magnitudes in the V and R bands for a much smaller region in the centre of the cluster. These two catalogues will be combined with a redshift catalogue of 509 galaxies (Durret et al. 1997; astro-ph/9709298) to investigate the cluster properties at optical wavelengths (Durret et al. in preparation), as a complement to our previous X-ray studies (Pislar et al. 1997, Lima-Neto et al. 1997).
Durret Florence
Guibert Jean
Lobo Carlos
Slezak Eric
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