| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1772201 | Chinese Astronomy and Astrophysics | 2007 | 8 Pages |
Abstract
15257 face-on disk galaxies are selected from the second group of data released by the Sloan Digital Sky Survey, and their color-magnitude relation is studied statistically. It is shown that the three colors g − r, r − i and r − z are each closely correlated with the r-band absolute magnitude, i.e., the brighter the galaxies, the redder the colors, and the smaller the dispersion of color indexes. The implications of the observed color-magnitude relations on the star formation history of disk galaxies are briefly discussed.
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