Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...181.4902l&link_type=abstract
American Astronomical Society, 181st AAS Meeting, #49.02; Bulletin of the American Astronomical Society, Vol. 24, p.1200
Astronomy and Astrophysics
Astronomy
Scientific paper
We present results of exploratory calculations of star formation in a simple model for a self-gravitating thin disk. We apply multi-population star formation techniques, using stars, gas, and clouds and allowing interconversion between the phases (Shore, Ferrini, and Palla 1987, ApJ, 316, 663). The calculations include adiabatic gas dynamics. The stellar and gas components are treated as fluids, with the clouds being treated as test particles. The continuity equation supplements the population evolution equations to insure mass conservation. In this first study, the system is solved for simple one dimensional circulation. Initially, the ``galaxy'' consists of only gas and clouds and we turn on a periodic perturbation in the gravitational potential. A strong shock develops due to the perturbation, which promotes star formation and cloud destruction. We discuss how to extend this calculation to more realistic two dimensional models for galactic star formation including the effects of diffusion and radiative processes.
Lopatnikov Aleksander
Shore Steve N.
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