期刊
ASTRONOMY & ASTROPHYSICS
卷 384, 期 2, 页码 371-382出版社
E D P SCIENCES
DOI: 10.1051/0004-6361:20020071
关键词
galaxies : elliptical and lenticular, cD; galaxies : kinematics and dynamics; galaxies : fundamental parameters; galaxies : general
We present the result of spectroscopic observations of a sample of 73 galaxies, completing the database published in this series of articles. The sample contains mostly low-luminosity early-type objects, including four dwarfs of the Local Group (in particular, deep spectra of NGC 205), 15 dEs or dS0s in the Virgo cluster, and UGC 05442, a spheroidal dwarf of the M 81 group. We have measured the central velocity dispersion for all but one object, and determined the major-axis rotation and velocity-dispersion profiles for 59 objects. For the current sample of diffuse (or dwarf) elliptical galaxies, we have compared stellar rotation to velocity dispersion; the analysis suggests that these objects may be nearly rotationally flattened, and therefore that anisotropy may be less important than previously thought.
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