Mathematics
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987nascp2466..501b&link_type=abstract
Star formation in galaxies, Proceedings of a conference at the California Institute of Technology, Pasadena, California, June 16
Mathematics
Far Infrared Radiation, Radio Bursts, Star Formation, Starburst Galaxies, Stellar Activity, Stellar Luminosity, Cosmic Dust, H Alpha Line, Mathematical Models, Radio Emission, Spiral Galaxies, Stellar Color, Stellar Spectrophotometry
Scientific paper
After the IRAS discovery of galaxies with large far-infrared to blue luminosity ratio, it has been proposed that an enhanced star formation could be the origin of the far-infrared emission through dust heating. Whether a simple photometric model is able to account for the FIR and optical properties of IRAS galaxies was investigated. The LIR/L sub B ratio, (B-V) color and Halpha equivalent width of normal spirals are well reproduced with smooth star formation histories. In the case of starburst galaxies, several theoretical diagrams allow us to estimate the burst strength and extinction. LIR/L sub B ratio up to 100 can be rather easily reached, whereas extreme values probably require IMF truncated at the low end.
Belfort P.
Dennefeld Michel
Mochkovitch Robert
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