Statistics – Computation
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.210..399s&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 210, Sept. 15, 1984, p. 399-413.
Statistics
Computation
11
Density Wave Model, Galactic Evolution, Galactic Structure, Spiral Galaxies, Stellar Evolution, Stochastic Processes, Computational Astrophysics, Probability Theory, Self Propagation
Scientific paper
Two late-type spiral galaxies with similar kinematic and photometric properties but different spiral arm structures, M33 and NGC 7793, are compared to model galaxies with stochastic self-propagating star formation. The spontaneous probability, Psp, representing the rate of primary star formation, is modulated by a smooth, density wave-like spiral pattern in the models of M33. When propagating star formation is included, these models show no age gradients in the underlying spiral arms. Models which have no imposed spiral modulation to Psp resemble the observed structure of NGC 7793.
Elmegreen Bruce G.
Elmegreen Debra Meloy
Smith Gordon
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