Journal
ASTRONOMY & ASTROPHYSICS
Volume 452, Issue 3, Pages 811-U24Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361:20054617
Keywords
galaxies : elliptical and lenticulars, cD; galaxies : distances and redshifts; galaxies : clusters : general
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Aims. We present low and intermediate resolution spectroscopic data collected for 152 early type galaxies in 8 nearby clusters with z <= 0.10. Methods. We use low resolution data to produce the redshift and the K-correction for each galaxy, as well as to give their overall spectral energy distribution and some spectral indicators, including the 4000 angstrom break, the Mg-2 strength and the NaD equivalent width. We have also obtained higher resolution data for early type galaxies in three of the clusters, to determine their central velocity dispersion. Results. The effect of the resolution on the measured parameters is discussed. Conclusions. A new accurate systemic redshift and velocity dispersion is presented for four of the surveyed clusters, A98, A3125, A3330, and DC2103-39. We have found that the K-correction values for E/S0 bright galaxies in the given nearby clusters are very similar. We also find that the distribution of the line indicators significantly differs from cluster to cluster.
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