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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/47697
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- The luminosity-halo mass relation for brightest cluster galaxies
- Brough, S.; Couch, W. J.; Collins, Chris A.; Jarrett, Thomas H.; Burke, Douglas J.; Mann, Robert G.
- We examine the central galaxy luminosity-host halo mass relation for 54 brightest group galaxies (BGGs) and 92 brightest cluster galaxies (BCGs) at z < 0.1 and present the first measurement of this relation for a sample of known BCGs at 0.1 < z < 0.8((z)over bar similar to 0.3). At z < 0.1 we find L-K alpha M-200(0.24 +/- 0.08) for the BCGs and the early-type BGGs in groups with extended X-ray emission and L-K alpha M-200(0.11 +/- 10) for the BCGs alone. At 0.1 < z < 0.8 we find L-K alpha M-200(0.28 +/- 0.11). We conclude that there is no evidence for evolution in this relationship between z < 0.1 and z < 0.8: BCG growth appears to still be limited by the time-scale for dynamical friction at these earlier times, not proceeding according to the predictions of present semianalytic models.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Information and Communication Technologies. Centre for Astrophysics and Supercomputing
- Monthly Notices of the Royal Astronomical Society Letters, Vol. 385, no. 1 (Mar 2008), pp. L103-L107
- Publication year
- FOR Code(s)
- 0201 Astronomical and Space Sciences; 020103 Cosmology and Extragalactic Astronomy
- Band hubble diagram; Catalog; Galaxy clusters; Elliptical galaxies; Galaxy evolution; Galaxy formation; Gems; Halo/subhalo mass; Lenticular galaxies; Mergers; Nonparametric model; Occupation distribution; Red galaxies
- Wiley-Blackwell Publishing
- Publisher URL
- Copyright © 2008 The Authors. Journal compilation copyright © 2008 Royal Astronomical Society. The accepted manuscript is reproduced in accordance with the copyright policy of the publisher. The definitive publication is available at www.interscience.wiley.com.
- Full text
- Peer reviewed