Optical Signatures of High-Redshift Galaxy Clusters
dc.contributor.author | Evrard, August E. | en_US |
dc.contributor.author | Charlot, S. | en_US |
dc.date.accessioned | 2008-08-14T19:09:44Z | |
dc.date.available | 2008-08-14T19:09:44Z | |
dc.date.issued | 1994-03-20 | en_US |
dc.identifier.citation | Evrard, AE; Charlot, S. (1994). Astrophysical Journal, 424:(1, Part2) L13-L16. <http://hdl.handle.net/2027.42/60568> | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/60568 | |
dc.description.abstract | We combine an N-body and gasdynamic simulation of structure formation with an updated population synthesis code to explore the expected optical characteristics of a high-redshift cluster of galaxies. We examine a poor (2 keV) cluster formed in a biased, cold dark matter cosmology and employ simple, but plausible, threshold criteria to convert gas into stars. At z = 2, the forming cluster appears as a linear chain of very blue (g - r congruent-to 0) galaxies, with 15 objects brighter than r = 25 within a 1 square arcmin field of view. After 2 Gyr of evolution, the cluster viewed at z = 1 displays both freshly infalling blue galaxies and red galaxies robbed of recent accretion by interaction with the hot intracluster medium. The range in G - R colors is - 3 mag at z = 1, with the reddest objects lying at sites of highest galaxy density. We suggest that red, high-redshift galaxies lie in the cores of forming clusters and that their existence indicates the presence of a hot intracluster medium at redshifts z congruent-to 2. The simulated cluster viewed at z = 2 has several characteristics similar to the collection of faint, blue objects identified by Dressler et al. in a deep Hubble Space Telescope observation. The similarities provide some support for the interpretation of this collection as a high-redshift cluster of galaxies. | en_US |
dc.format.extent | 1399481 bytes | |
dc.format.extent | 18 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Univ Chicago Press | en_US |
dc.subject | Cosmology : Theory | en_US |
dc.subject | Galaxies : Clusters Of | en_US |
dc.subject | Galaxies : Evolution | en_US |
dc.subject | Galaxies : Formation | en_US |
dc.title | Optical Signatures of High-Redshift Galaxy Clusters | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationother | UNIV CALIF BERKELEY,DEPT ASTRON,BERKELEY,CA 94720 | en_US |
dc.contributor.affiliationother | UNIV CALIF BERKELEY,CTR PARTICLE ASTROPHYS,BERKELEY,CA 94720 | en_US |
dc.contributor.affiliationother | LAWRENCE LIVERMORE NATL LAB,INST GEOPHYS & PLANETARY PHYS,LIVERMORE,CA 94550 | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/60568/1/1994ApJ___424L__13E.pdf | |
dc.identifier.doi | http://dx.doi.org/10.1086/187263 | en_US |
dc.owningcollname | Astrophysics (Physics, Department of) |
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