MNRAS-2012-Harrison-L19-23.pdf (374.2 kB)
Testing cosmology with extreme galaxy clusters
journal contribution
posted on 2023-06-08, 14:49 authored by Ian Harrison, Peter ColesMotivated by recent suggestions that a number of observed galaxy clusters have masses which are too high for their given redshift to occur naturally in a standard model cosmology, we use extreme value statistics to construct confidence regions in the mass-redshift plane for the most extreme objects expected in the universe. We show how such a diagram not only provides a way of potentially ruling out the concordance cosmology, but also allows us to differentiate between alternative models of enhanced structure formation. We compare our theoretical prediction with observations, placing currently observed high- and low-redshift clusters on a mass-redshift diagram, and find - provided we consider the full sky to avoid a posteriori selection effects - that none is in significant tension with concordance cosmology.
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Publication status
- Published
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- Published version
Journal
Monthly Notices of the Royal Astronomical SocietyISSN
0035-8711Publisher
Wiley-BlackwellExternal DOI
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1Volume
421Page range
L19-L23Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2013-04-29First Open Access (FOA) Date
2013-04-29First Compliant Deposit (FCD) Date
2013-04-29Usage metrics
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