Mathematics – Logic
Scientific paper
Oct 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979azh....56..941z&link_type=abstract
Astronomicheskii Zhurnal, vol. 56, Sept.-Oct. 1979, p. 941-948. In Russian.
Mathematics
Logic
8
Galactic Radiation, Interstellar Extinction, Spiral Galaxies, Star Formation, Ubv Spectra, Astronomical Catalogs, Chemical Composition, Galactic Structure, Stellar Mass
Scientific paper
The position of nonelliptical galaxies on a two-color (B-V)-(U-B) diagram is examined on the basis of RC2 catalog data, with correction made for interstellar reddening. The sequence of color indices on the two-color diagram is compared with theoretical sequences constructed for Salpeter's initial mass function (IMF) of stars; it is required in the present analysis that the IMF change systematically along a morphological Hubble's sequence of galaxies. The relation between the dust content of galaxies and their IMF is found to be in qualitative agreement with Kahn's theory (1974), which gives an upper limit to the mass of young stars.
Demin V. V.
Zasov Anatoli V.
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