R. De Propris
The 2dF Galaxy Redshift Survey: the blue galaxy fraction and implications for the Butcher-Oemler effect
De Propris, R.; Colless, M.; Peacock, J.A.; Couch, W.J.; Driver, S.P.; Balogh, M.L.; Baldry, I.K.; Baugh, C.M.; Bland-Hawthorn, J.; Bridges, T.; Cannon, R.; Cole, S.; Collins, C.; Cross, N.; Dalton, G.; Efstathiou, G.; Ellis, R.S.; Frenk, C.S.; Glazebrook, K.; Hawkins, E.; Jackson, C.; Lahav, O.; Lewis, I.; Lumsden, S.; Maddox, S.; Madgwick, D.; Norberg, P.; Percival, W.; Peterson, B.A.; Sutherland, W.; Taylor, K.
Authors
M. Colless
J.A. Peacock
W.J. Couch
S.P. Driver
M.L. Balogh
I.K. Baldry
Professor Carlton Baugh c.m.baugh@durham.ac.uk
Professor
J. Bland-Hawthorn
T. Bridges
R. Cannon
Professor Shaun Cole shaun.cole@durham.ac.uk
Director of the Institute for Computational Cosmology
C. Collins
N. Cross
G. Dalton
G. Efstathiou
R.S. Ellis
Professor Carlos Frenk c.s.frenk@durham.ac.uk
Professor
K. Glazebrook
E. Hawkins
C. Jackson
O. Lahav
I. Lewis
S. Lumsden
S. Maddox
D. Madgwick
Professor Peder Norberg peder.norberg@durham.ac.uk
Professor
W. Percival
B.A. Peterson
W. Sutherland
K. Taylor
Abstract
We derive the fraction of blue galaxies in a sample of clusters at z < 0.11 and the general field at the same redshift. The value of the blue fraction is observed to depend on the luminosity limit adopted, cluster-centric radius and, more generally, local galaxy density, but it does not depend on cluster properties. Changes in the blue fraction are due to variations in the relative proportions of red and blue galaxies but the star formation rate for these two galaxy groups remains unchanged. Our results are most consistent with a model where the star formation rate declines rapidly and the blue galaxies tend to be dwarfs and do not favour mechanisms where the Butcher–Oemler effect is caused by processes specific to the cluster environment.
Citation
De Propris, R., Colless, M., Peacock, J., Couch, W., Driver, S., Balogh, M., …Taylor, K. (2004). The 2dF Galaxy Redshift Survey: the blue galaxy fraction and implications for the Butcher-Oemler effect. Monthly Notices of the Royal Astronomical Society, 351(1), 125-132. https://doi.org/10.1111/j.1365-2966.2004.07756.x
Journal Article Type | Article |
---|---|
Publication Date | 2004-06 |
Deposit Date | Apr 19, 2011 |
Journal | Monthly Notices of the Royal Astronomical Society |
Print ISSN | 0035-8711 |
Electronic ISSN | 1365-2966 |
Publisher | Royal Astronomical Society |
Peer Reviewed | Peer Reviewed |
Volume | 351 |
Issue | 1 |
Pages | 125-132 |
DOI | https://doi.org/10.1111/j.1365-2966.2004.07756.x |
Public URL | https://durham-repository.worktribe.com/output/1509232 |
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