We have presented long-slit spectroscopy of 35 early-type galaxies of
the Coma cluster. The high signal-to-noise of the data allowed us to
derive spatially resolved spectra for a substantial sample of Coma
galaxies for the first time.
From these spectra we
derived the kinematical profiles (line of sight velocities and velocity
dispersions, third and fourth Hermite coefficients describing
deviations from a purely Gaussian velocity distributions) and the radial line
index profiles (Mgb, Fe
,
H
)
out to
.
CCD photometry for 8 early-type objects of
the outer region of the cluster was also presented.
The database will be used in future papers to study the stellar populations,
their radial distribution and the dynamics of early-type galaxies as a
function of cluster density.
Acknowledgements
The authors thank the staff of the Calar Alto, MDM and McDonald observatories for their effective support. We also thank Inger Jørgensen for help and suggestions in the early phase of this project and for refereeing this paper giving helpful comments and suggestions. D. Mehlert also thanks Bodo Ziegler for helpful discussions during the data reduction phase. This work was supported by the Deutsche Forschungsgemeinschaft via project Be 1091/6.
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