Free Access
Astron. Astrophys. Suppl. Ser.
Volume 136, Number 3, May I 1999
Page(s) 509 - 514
Published online 15 May 1999
DOI: 10.1051/aas:1999230

Astron. Astrophys. Suppl. Ser. 136, 509-514

Stellar kinematic data for the central region of spiral galaxies. II.[*][*]

Ph. Héraudeau1 - F. Simien2 - G. Maubon2 - Ph. Prugniel2

Send offprint request: F. Simien (

1 - Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany
2 - CRAL-Observatoire de Lyon CNRS, UMR 142, F-69561 St-Genis-Laval Cedex, France

Received February 2; accepted February 17, 1999


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.

Key words: galaxies: spiral -- galaxies: general -- galaxies: kinematics & dynamics

SIMBAD Objects
Tables at the CDS

Copyright The European Southern Observatory (ESO)

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.