The Butcher-Oemler effect in a nearby cluster of galaxies?

The integrated spectra of early-type galaxies in the nearby Abell 262, Pegasus I, and Virgo clusters are compared with those of several 'field' galaxies. The spectra of five galaxies in Pegasus I and one galaxy in the Virgo Cluster show evidence of recent star formation. The average blue m...

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Bibliographic Details
Published in:The Astronomical journal 1989-12, Vol.98, p.2044-2051
Main Authors: Vigroux, Laurent, Boulade, Olivier, Rose, James A.
Format: Article
Language:English
Subjects:
640105 - Astrophysics & Cosmology- Galaxies
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COMPARATIVE EVALUATIONS
EMISSION SPECTRA
GALACTIC EVOLUTION
GALAXIES
GALAXY CLUSTERS
RED SHIFT
SPECTRA
SPECTROSCOPY
STAR EVOLUTION
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Summary:The integrated spectra of early-type galaxies in the nearby Abell 262, Pegasus I, and Virgo clusters are compared with those of several 'field' galaxies. The spectra of five galaxies in Pegasus I and one galaxy in the Virgo Cluster show evidence of recent star formation. The average blue magnitude for the star-forming galaxies is M(B) = -20. The star-formation activity in Pegasus I is found to be similar to that of starburst and poststarburst galaxies in Butcher-Oemler clusters at redshifts greater than 2. (R.B.)
ISSN:0004-6256
1538-3881
DOI:10.1086/115276