The bright end of the color-magnitude relation for cD, E and S0 galaxies

Details The bright end of the color-magnitude relation for cD, E and S0 galaxies The bright end of the color-magnitude relation for cD, E and S0 galaxies

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979aj.....84.1677l&link_type=abstract

Astronomical Journal, vol. 84, Nov. 1979, p. 1677, 1678.

Astronomy and Astrophysics

Astronomy

7

Astronomical Photometry, Color, Elliptical Galaxies, Hertzsprung-Russell Diagram, Stellar Magnitude, Virgo Galactic Cluster, Astronomical Models, Coma, Luminous Intensity, Ubv Spectra

Scientific paper

Schild and Davis's (1979) galaxy photometry for cD's in poor clusters is compared with Sandage's (1979) color-magnitude relation defined by elliptical and S0 galaxies in the Virgo and Coma clusters. The cD galaxies are found to be somewhat bluer on average than galaxies of similar magnitude in the Virgo and Coma sample, consistent with the predictions of the galactic cannibalism model proposed by Hausman and Ostriker (1978). However, a more uniform selection of galaxy photometry is required before any definitive conclusions regarding the bright end of the color-magnitude relation can be made.

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