Star formation rates and abundance gradients in disk galaxies

Details Star formation rates and abundance gradients in disk galaxies Star formation rates and abundance gradients in disk galaxies

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...339..700w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 339, April 15, 1989, p. 700-711. Research supported by NSF and NASA.

Astronomy and Astrophysics

Astrophysics

147

Abundance, Disk Galaxies, Galactic Evolution, Star Formation Rate, Chemical Evolution, Galactic Structure, Metallicity, Solar Neighborhood, Stellar Mass Accretion

Scientific paper

Analytic models for the evolution of disk galaxies are presented, placing special emphasis on the radial properties. These models are straightforward extensions of the original Schmidt (1959, 1963) models, with a dependence of star formation rate on gas density. The models provide successful descriptions of several measures of galactic disk evolution, including solar neighborhood chemical evolution, the presence and amplitude of metallicity and color gradients in disk galaxies, and the global rates of star formation in disk galaxies, and aid in the understanding of the apparent connection between young and old stellar populations in spiral galaxies.

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