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Testing cosmology with extreme galaxy clusters

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journal contribution
posted on 2023-06-08, 14:49 authored by Ian Harrison, Peter Coles
Motivated 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.

History

Publication status

  • Published

File Version

  • Published version

Journal

Monthly Notices of the Royal Astronomical Society

ISSN

0035-8711

Publisher

Wiley-Blackwell

Issue

1

Volume

421

Page range

L19-L23

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2013-04-29

First Open Access (FOA) Date

2013-04-29

First Compliant Deposit (FCD) Date

2013-04-29

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