Stochastic star formation and the evolution of galaxies

Details Stochastic star formation and the evolution of galaxies Stochastic star formation and the evolution of galaxies

Sep 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...232..702s&link_type=abstract

Astrophysical Journal, Part 1, vol. 232, Sept. 15, 1979, p. 702-706.

Mathematics

Logic

38

Galactic Evolution, Galactic Structure, Star Formation, Stochastic Processes, Morphology, Phase Transformations, Rates (Per Time)

Scientific paper

The mechanism of stochastic self-propagating star formation has previously been invoked to explain the origin of spiral arms in galaxies. In this paper the application of this mechanism is extended to account for the diversity of morphological types and the evolution of galaxies. The new property that arises from consideration of this mechanism is that the rate of star formation exhibits the critical behavior of a phase transition. This is a general property of the system and is not strongly dependent on the details of the star-interstellar gas interaction. Examination of the properties of this phase transition provides a general scenario for the evolution of galaxies and the origin of the various morphological types.

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