Internal Extinction in the Sdss Late-type Galaxies
نویسنده
چکیده
We study internal extinction of late-type galaxies in the Sloan Digital Sky Survey. We find that the degree of internal extinction depends on both the concentration index c and Ks-band absolute magnitude MK . We give simple fitting functions for internal extinction. In particular, we present analytic formulae giving the extinction-corrected magnitudes from the observed optical parameters. For example, the extinction-corrected r-band absolute magnitude can be obtained by Mr,0 = −20.77+
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تاریخ انتشار 2008