Annu. Rev. Astron. Astrophys. 1978. 16: 103-39
Copyright © 1978 by . All rights reserved

Reprinted with kind permission from , 4139 El Camino Way, Palo Alto, California, USA

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THE KINEMATICS OF SPIRAL AND IRREGULAR GALAXIES

P.C. van der Kruit and R.J. Allen


Kapteyn Astronomical Institute, University of Groningen, Groningen, The Netherlands


Table of Contents

INTRODUCTION

MEASUREMENT OF THE DISTRIBUTION AND KINEMATICS OF THE GAS
Methods of Observation
Distribution of the Gas
Velocity Fields

THE GENERAL ROTATION
Rotation Curve Shape and Galaxy Morphological Type
Rotation Curves in the Outer Parts of Spiral Galaxies
Velocity Dispersion Measurements

NONCIRCULAR MOTIONS
The Central Regions
Large-Scale Effects of Nuclear Activity
Bars and Oval Distortions
Density Wave Streaming
Warps in the Outer Parts of Spiral Galaxies
Kinematical Effects of Tidal Interactions

CONCLUDING REMARKS

REFERENCES

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