MNRAS-2004-Da_Silva-1401-8.pdf (1.21 MB)
Hydrodynamical simulations of the Sunyaev–Zel'dovich effect: cluster scaling relations and X-ray properties
journal contribution
posted on 2023-06-08, 05:49 authored by Antonio C Da Silva, Scott T Kay, Andrew R Liddle, Peter ThomasPeter ThomasThe Sunyaev–Zel'dovich (SZ) effect is a powerful new tool for finding and studying clusters at high redshift, particularly in combination with their X-ray properties. In this paper we quantify the expected scaling relations between these properties using numerical simulations with various models for heating and cooling of the cluster gas. For a Non-radiative model, we find scaling relations in good agreement with self-similar predictions: Y?T5/2X and Y?L5/4X. Our main results focus on predictions from Cooling and Preheating simulations, shown recently by Muanwong et al. to provide a good match to the X-ray scaling relations at z= 0. For these runs, we find slopes of approximately Y?T3X and Y?LX, steeper and flatter than the self-similar scalings respectively. We also study the redshift evolution of the scaling relations, and find that the slopes show no evidence of evolution out to redshifts well beyond unity, while the normalizations of relations between the SZ signal and X-ray properties do show evolution relative to that expected from self-similarity, particularly at z < 1.
History
Publication status
- Published
File Version
- Published version
Journal
Monthly Notices of the Royal Astronomical SocietyISSN
0035-8711Publisher
Oxford University PressExternal DOI
Issue
4Volume
348Page range
1401-1408Department affiliated with
- Physics and Astronomy Publications
Notes
As other da Silva paper. (27 citations)Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06First Open Access (FOA) Date
2016-03-22First Compliant Deposit (FCD) Date
2016-11-10Usage metrics
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