Evolution of the star-formation rate and extinction in disk galaxies at high <Emphasis Type="Italic">z</Emphasis> |
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| Authors: | A A Kabanov A V Tutukov B M Shustov |
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| Institution: | 1.Institute of Astronomy,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | A model for the evolution of disk galaxies is used to investigate evolutionary variations in the star-formation rate (SFR)
and extinction in disk galaxies beginning from their formation. The results obtained are compared with observational estimates
of the SFRe and extinction at cosmological redshifts z ≤ 7. The formof themass-radius relation for disk galaxies is discussed. It is proposed that the mass-radius relation is a
consequence of a mass-angular momentum relation. Analysis of the influence of the form of the mass-radius relation on the
evolutionary variations in the SFR and extinction testify that this influence is very small. The SFRs and extinctions at various
redshifts z obtained in the models are in agreement with observations. |
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