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Title: Bright end of the color-magnitude relation for cD, E and S0 galaxies

Journal Article · · Astron. J.; (United States)
DOI:https://doi.org/10.1086/112592· OSTI ID:5866185

Schild and Davis's (Astron. J. 84, 311 (1979)) galaxy photometry for cD's in poor clusters is compared with Sandage's (Astrophys. J. 176, 21(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 (Astrophys. J. 224, 320 (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.

Research Organization:
Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138
OSTI ID:
5866185
Journal Information:
Astron. J.; (United States), Vol. 84:11
Country of Publication:
United States
Language:
English