j.1365-8711.2002.05307.x.pdf (138.25 kB)
Can simulations reproduce the observed temperature—mass relation for clusters of galaxies?
journal contribution
posted on 2023-06-07, 22:00 authored by Peter ThomasPeter Thomas, O Muanwong, S T Kay, A R LiddleIt has become increasingly apparent that traditional hydrodynamical simulations of galaxy clusters are unable to reproduce the observed properties of galaxy clusters, in particular overpredicting the mass corresponding to a given cluster temperature. Such overestimation may lead to systematic errors in results using galaxy clusters as cosmological probes, such as constraints on the density perturbation normalization s8. In this paper we demonstrate that inclusion of additional gas physics, namely radiative cooling and a possible pre-heating of gas prior to cluster formation, is able to bring the temperature—mass relation in the innermost parts of clusters into good agreement with recent determinations by Allen, Schmidt & Fabian using Chandra data.
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Monthly Notices of the Royal Astronomical SocietyISSN
0035-8711Publisher
Oxford University PressExternal DOI
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2Volume
330Page range
48-52Department affiliated with
- Physics and Astronomy Publications
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- Yes
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- Yes
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2012-02-06First Open Access (FOA) Date
2016-03-22First Compliant Deposit (FCD) Date
2017-03-07Usage metrics
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