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dc.contributor.authorHenden, Nicholasen
dc.contributor.authorPuchwein, Ewalden
dc.contributor.authorSijacki, Deboraen
dc.date.accessioned2019-08-23T23:30:22Z
dc.date.available2019-08-23T23:30:22Z
dc.identifier.issn1365-2966
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/296184
dc.description.abstractWe study the redshift evolution of the X-ray and Sunyaev-Zel'dovich (SZ) scaling relations for galaxy groups and clusters in the FABLE suite of cosmological hydrodynamical simulations. Using an expanded sample of $27$ high-resolution zoom-in simulations, together with a uniformly-sampled cosmological volume to sample low-mass systems, we find very good agreement with the majority of observational constraints up to $z \sim 1$. We predict significant deviations of all examined scaling relations from the simple self-similar expectations. While the slopes are approximately independent of redshift, the normalisations evolve positively with respect to self-similarity, even for commonly-used mass proxies such as the $Y_{\mathrm{X}}$ parameter. These deviations are due to a combination of factors, including more effective AGN feedback in lower mass haloes, larger binding energy of gas at a given halo mass at higher redshifts and larger non-thermal pressure support from kinetic motions at higher redshifts. Our results have important implications for cluster cosmology from upcoming SZ surveys such as SPT-3G, ACTpol and CMB-S4, as relatively small changes in the observable--mass scaling relations (within theoretical uncertainties) have a large impact on the predicted number of high-redshift clusters and hence on our ability to constrain cosmology using cluster abundances. In addition, we find that the intrinsic scatter of the relations, which agrees well with most observational constraints, increases at lower redshifts and for lower mass systems. This calls for a more complex parametrization than adopted in current observational studies to be able to accurately account for selection biases.
dc.description.sponsorshipSTFC and ERC
dc.publisherOxford University Press
dc.rightsAll rights reserved
dc.rights.uri
dc.subjectastro-ph.COen
dc.titleThe redshift evolution of X-ray and Sunyaev-Zel'dovich scaling relations in the FABLE simulationsen
dc.typeArticle
prism.publicationNameMonthly Notices of the Royal Astronomical Societyen
dc.identifier.doi10.17863/CAM.43229
dcterms.dateAccepted2019-08-16en
rioxxterms.versionofrecord10.1093/mnras/stz2301en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2019-08-16en
dc.contributor.orcidHenden, Nicholas [0000-0003-2002-7983]
dc.contributor.orcidSijacki, Debora [0000-0002-3459-0438]
dc.identifier.eissn1365-2966
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idECH2020 EUROPEAN RESEARCH COUNCIL (ERC) (638707)
pubs.funder-project-idSCIENCE & TECHNOLOGY FACILITIES COUNCIL (ST/N000927/1)
pubs.funder-project-idSTFC (ST/P002315/1)
pubs.funder-project-idSTFC (ST/K00333X/1)
pubs.funder-project-idSTFC (ST/H008861/1)
pubs.funder-project-idSTFC (ST/K001590/1)
pubs.funder-project-idSTFC (ST/R002452/1)
pubs.funder-project-idSTFC (ST/R00689X/1)
pubs.funder-project-idSTFC (ST/L000725/1)
pubs.funder-project-idSTFC (ST/M007065/1)
pubs.funder-project-idSTFC (ST/M007073/1)
pubs.funder-project-idSTFC (ST/T001550/1)
cam.issuedOnline2019-08-20en
cam.orpheus.successThu Jan 30 10:40:00 GMT 2020 - Embargo updated*
rioxxterms.freetoread.startdate2019-08-20


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