The color-magnitude relation of disk galaxies

Details The color-magnitude relation of disk galaxies The color-magnitude relation of disk galaxies

Jan 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007acasn..48...11w&link_type=abstract

Acta Astronomica Sinica, vol. 48, no. 1, p.11-17

Astronomy and Astrophysics

Astronomy

2

Galaxies: Fundamental Parameters (Classification, Colors, Luminosities, Masses, Radii, Etc), Galaxies: Abundances, Galaxies: Formation, Galaxies: Evolution

Scientific paper

We choose 15257 face-on disk galaxies from Data Release 2 of Sloan Digital Sky Survey and statistically investigate their color magnitude relations. It is shown that the color g-r, r-i, r-z have tight relations with r-band magnitude, i.e., more luminous galaxies have redder colors than less luminous galaxies, and their relations have less dispersion. In the end, the implications of the observed color-magnitude relations on the star formation history of disk galaxy are discussed.

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