On the evolution of the SFR in galactic disks

Details On the evolution of the SFR in galactic disks On the evolution of the SFR in galactic disks

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ap%26ss.284..731s&link_type=abstract

Astrophysics and Space Science, v. 284, Issue 2, p. 731-734 (2003).

Astronomy and Astrophysics

Astrophysics

Galaxies: General &Ndash, Galaxies, Evolution &Ndash, Galaxies, Stellar Content &Ndash, Star Formation

Scientific paper

A simple semi-empirical model of the evolution of observed ring-shaped radial distributions of SFR surface density in galaxies NGC 628 and NGC 6946 provides us with exponential stellar disks with cooresponding scale length of the surface brightness radial distributions and constraints for the some nonobservable parameters: characteristic SFR decreasing time scale, characteristic collapse time scale, etc.

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