Possible Physical Mechanisms of Star Bursts in Galaxies

Details Possible Physical Mechanisms of Star Bursts in Galaxies Possible Physical Mechanisms of Star Bursts in Galaxies

Nov 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993rmxaa..27..129f&link_type=abstract

Revista Mexicana de Astronomia y Astrofisica, 27, 129

Astronomy and Astrophysics

Astronomy

Scientific paper

RESUMEN Se proponen dos mecanismos para explicar los brotes de formaci6n estelar en una galaxia: una formaci6n estelar que se dispara cuando la densidad del gas es mayor que Un valor minimo determinado por las fuerzas de marea, y una formaci6n estelar inducida por una transferencia de gas hacia la regi6n nuclear durante una interacci6n gravitacional galactica. Se presentan algunas predicciones basadas en la teoria de la evoluci6n de las galaxias discoidales. ABSTRACT 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. Key words: GALAXIES: EVOLUTION GALAXIES:

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