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Eccentricity evolution in simulated galaxy clusters

delete2003-07-10
delete10
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OA
AI
S
Stephen N. Floor *
A
Adrian L. Melott
G
Greg L. Bryan
DOI：10.1086/375493delete
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摘要

摘要

En 中文
Strong cluster eccentricity evolution for z less than or equal to 0.13 has appeared in a variety of observational data sets. We examine the evolution of eccentricity in simulated galaxy clusters using a variety of simulation methodologies, amplitude normalizations, and background cosmologies. We do not find such evolution for z < 0.1 in any of our simulation ensembles. We suggest a systematic error in the form of a redshift-dependent selection effect in cluster catalogs or missing physics in cluster simulations important enough to modify the cluster morphology.
Keyword:
galaxies : clusters : general
large-scale structure of universe
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期刊

Astrophysical Journal 封面图
Astrophysical Journal
IF:
5.4
论文数:
8.3W
被引数:
32.0W

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