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dc.contributor.authorFarahi, Arya
dc.contributor.authorMulroy, Sarah L
dc.contributor.authorEvrard, August E
dc.contributor.authorSmith, Graham P
dc.contributor.authorFinoguenov, Alexis
dc.contributor.authorBourdin, Hervé
dc.contributor.authorCarlstrom, John E
dc.contributor.authorHaines, Chris P
dc.contributor.authorMarrone, Daniel P
dc.contributor.authorMartino, Rossella
dc.contributor.authorMazzotta, Pasquale
dc.contributor.authorO'Donnell, Christine
dc.contributor.authorOkabe, Nobuhiro
dc.date.accessioned2019-08-01T22:51:49Z
dc.date.available2019-08-01T22:51:49Z
dc.date.issued2019-07-02
dc.identifier.citationFarahi, A., Mulroy, S. L., Evrard, A. E., Smith, G. P., Finoguenov, A., Bourdin, H., ... & Mazzotta, P. (2019). Detection of anti-correlation of hot and cold baryons in galaxy clusters. Nature communications, 10.en_US
dc.identifier.issn2041-1723
dc.identifier.pmid31266938
dc.identifier.doi10.1038/s41467-019-10471-y
dc.identifier.urihttp://hdl.handle.net/10150/633628
dc.description.abstractThe largest clusters of galaxies in the Universe contain vast amounts of dark matter, plus baryonic matter in two principal phases, a majority hot gas component and a minority cold stellar phase comprising stars, compact objects, and low-temperature gas. Hydrodynamic simulations indicate that the highest-mass systems retain the cosmic fraction of baryons, a natural consequence of which is anti-correlation between the masses of hot gas and stars within dark matter halos of fixed total mass. We report observational detection of this anti-correlation based on 4 elements of a 9 x 9-element covariance matrix for nine cluster properties, measured from multi-wavelength observations of 41 clusters from the Local Cluster Substructure Survey. These clusters were selected using explicit and quantitative selection rules that were then encoded in our hierarchical Bayesian model. Our detection of anti-correlation is consistent with predictions from contemporary hydrodynamic cosmological simulations that were not tuned to reproduce this signal.en_US
dc.description.sponsorshipMcWilliams Postdoctoral Fellowship; NASA [GO8-19107B, GO6-17116B]; STFC; Royal Society; NSF [AST-1140019]; PRIN INAF 2014; ASI-INAF [2017-14-H.O]; University of Rome "Tor Vergata" Grant, "Mission: Sustainability" EnClOSen_US
dc.language.isoenen_US
dc.publisherNATURE PUBLISHING GROUPen_US
dc.rights© The Author(s) 2019. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleDetection of anti-correlation of hot and cold baryons in galaxy clustersen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Steward Observen_US
dc.identifier.journalNATURE COMMUNICATIONSen_US
dc.description.noteOpen access journalen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.journaltitleNature communications
refterms.dateFOA2019-08-01T22:51:50Z


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© The Author(s) 2019. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License.
Except where otherwise noted, this item's license is described as © The Author(s) 2019. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License.