Galactic evolution with self-regulated star formation - Stability of a simple one-zone model

Details Galactic evolution with self-regulated star formation - Stability of a simple one-zone model Galactic evolution with self-regulated star formation - Stability of a simple one-zone model

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...356..100p&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 356, June 10, 1990, p. 100-109. Research supported by the Universidad de Lo

Astronomy and Astrophysics

Astrophysics

9

Galactic Evolution, Star Formation, Ultraviolet Radiation, Interstellar Gas, Numerical Integration, Star Formation Rate, Stellar Mass

Scientific paper

In a simple one-zone model of mass exchange between three components (stars, clouds, and diffused gas), a self-regulating mechanism based on the sensitivity of the condensation of small cool clouds upon the radiation density in the 912-1100 A band is presently included. This mechanism is capable of affecting the large-scale structure of the galaxies due to the fact that it acts at a large scale in a very short time. Even in the most favorable models for the production of nonlinear oscillations, the inclusion of this mechanism of self-regulation leads, in many cases, to the progressive damping of the oscillations.

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