Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...328..499b&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 328, May 15, 1988, p. 499-518.
Astronomy and Astrophysics
Astrophysics
4
Computerized Simulation, Disk Galaxies, Galactic Evolution, Galactic Structure, Helium, Star Formation, Abundance, Interstellar Gas, Ionized Gases, Stellar Mass, Vapor Phases
Scientific paper
A three-dimensional, two gas-phase, stochastic self-propagating star formation model of galaxies is developed which allows gas to move from cell to cell, permanently removes some gas in the form of long-lived, low-mass stars, and follows the change in galactic chemistry at least as far as to track changes from primordial abundances of hydrogen and helium to abundances of hydrogen and helium after many generations of star formation. The results of this model compare reasonably well with observations of the Galaxy: relative quantities of neutral and molecular gas, ionized gas, and stars are in excellent agreement with observations, as is global helium plus metal formation history. Spiral structure is not sensitive to the parameters of the model and may be recovered in most cases.
Balser Dana S.
Comins Neil F.
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