About the possible cause of appearance of the barred spiral structurein galaxies.
Abstract
It is shown that a barred spiral structure can appear if rotation curves have an angular velocity break. Rigid-body rotation of the internal part of the disk is assumed. It is found that, in the linear approximation, wind instability produces the barred spiral structure.
- Publication:
-
Pisma v Astronomicheskii Zhurnal
- Pub Date:
- August 1987
- Bibcode:
- 1987PAZh...13..648G
- Keywords:
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- Astronomical Models;
- Barred Galaxies;
- Galactic Evolution;
- Galactic Structure;
- Spiral Galaxies;
- Angular Velocity;
- Interstellar Gas;
- Astrophysics