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Dynmamical Effects on Galaxies in Clusters
Published online by Cambridge University Press: 25 May 2016
Extract
For nearly 20 years, we've known that clusters at z≳0.3 have a substantial population of “blue galaxies” seen only as fuzzy blobs in ground based images (Butcher & Oemler 1978, 1984). Hubble Space Telescope (HST) images reveal that these “fuzzy blue blobs” are low luminosity, often disturbed, spiral galaxies “Sp” (Dressier et al 1994a,b, Couch et al 1994). Today, rich galaxy clusters are dominated by elliptical “E” and lenticular “S0” galaxies (Dressier 1980), mostly low luminosity dwarfs.
- Type
- Mergers in the Local Universe
- Information
- Symposium - International Astronomical Union , Volume 171: New Light on Galaxy Evolution , 1996 , pp. 203 - 206
- Copyright
- Copyright © Kluwer 1996
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