Two mechanisms are proposed to explain star formation (SF) bursts in galaxies: a SF triggered when the gas density is greater than a threshold determined by the tidal forces, and a SF due to a gas inflow on the nuclear region induced by a galactic gravitational interaction. Several predictions are presented on the frame of the evolutionary theory of disk galaxies.
Revista Mexicana de Astronomia y Astrofisica
- Pub Date:
- November 1993
- GALAXIES: EVOLUTION