Stellar kinematics in spiral galaxies. II. (Heraudeau+ 1999)

Details Stellar kinematics in spiral galaxies. II. (Heraudeau+ 1999) Stellar kinematics in spiral galaxies. II. (Heraudeau+ 1999)

May 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ycat..41360509h&link_type=abstract

VizieR On-line Data Catalog: J/A+AS/136/509. Originally published in: 1999A&AS..136..509H

Other

Galaxies: Rotation, Radial Velocities, Rotational Velocities, Velocity Dispersion

Scientific paper

We present a second dataset of absorption spectroscopy on the inner region of spiral galaxies. We have determined the central velocity dispersion for 42 Sa-Sc objects and, for 32 of them, stellar rotation curves and velocity-dispersion profiles. Some of these profiles are limited to the bulge, some others do reach a region dominated by the luminosity of the disk. These data are intended to provide basic material for the study of the mass distribution and dynamical status in the central regions of spiral galaxies. Although no elaborate bulge-and-disk photometric decomposition is performed, we estimate the effects of limited resolution and contamination by disk light on the central velocity dispersion of the bulge. All the material presented in this paper, in particular the spectra, is available on-line. (3 data files).

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