Other
Scientific paper
Dec 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...195.6702g&link_type=abstract
American Astronomical Society, 195th AAS Meeting, #67.02; Bulletin of the American Astronomical Society, Vol. 31, p.1470
Other
Scientific paper
Measurements of galactic star formation rates (SFRs) are critical for understanding the properties and evolution of populations of galaxies. SFRs are derived by determining luminosities and thus masses in short-lived OB stars; total SFRs then can be calculated using the initial mass function (IMF). This talk will review major methods for measuring SFRs from observations in the UV, H-recombination lines, and FIR. Results from SFR measurements for normal disk galaxies will be presented and compared with predictions of standard theoretical models and other galactic properties. A broader issue is finding the star formation history, the variation in the SFR over time, in a galaxy. Recent observational progress towards such measurements also will be briefly considered and contrasted with results from global measurements of the mean cosmic SFR versus time. Research support from NASA through a variety of programs for work in this area is gratefully acknowledged.
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