Stephen N. Floor et al. 2003 ApJ 591 741 doi:10.1086/375493
Stephen N. Floor1, Adrian L. Melott1, Christopher J. Miller2 and Greg L. Bryan3
Show affiliationsStrong cluster eccentricity evolution for z ≤ 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.
galaxies: clusters: general; large-scale structure of universe
Issue 2 (2003 July 10)
Received 2003 January 25, accepted for publication 2003 March 21
Stephen N. Floor et al. 2003 ApJ 591 741
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