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Date and Time of the Query: 2019-05-21 T00:31:00 PDT
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For refcode 2000A&AS..141..449M:
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Copyright by European Southern Observatory (ESO). Reproduced by permission
2000A&AS..141..449M Spatially resolved spectroscopy of Coma cluster early-type galaxies. I. The database. MEHLERT D., SAGLIA R.P., BENDER R., WEGNER G. Received March 8; accepted September 30, 1999 Abstract: We present long slit spectra for a magnitude limited sample of 35 E and S0 galaxies of the Coma cluster. The high quality 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 obtained rotation curves, the velocity dispersion profiles and the H_3_ and H_4_ coefficients of the Hermite decomposition of the line of sight velocity distribution. Moreover, we derive the radial line index profiles of Mg, Fe and H{beta} line indices out to R=~1r_e_-3r_e_ with high signal-to-noise ratio. We describe the galaxy sample, the observations and data reduction, and present the spectroscopic database. Ground-based photometry for a subsample of 8 galaxies is also presented. The Coma cluster is one of the richest known clusters of galaxies, spanning about 4 decades in density. Hence it is the ideal place to study the structure of galaxies as a function of environmental density in order to constrain the theories of galaxy formation and evolution. Based on the spectroscopic database presented, we will discuss these issues in a series of future papers. Key words: galaxies: elliptical and lenticular, cD; kinematics and dynamics; stellar content; abundances; formation
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