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dc.contributor.authorRumsey, C
dc.contributor.authorPerrott, Yvette Chanel
dc.contributor.authorOlamaie, M
dc.contributor.authorSaunders, Richard
dc.contributor.authorHobson, Michael
dc.contributor.authorStroe, A
dc.contributor.authorSchammel, MP
dc.contributor.authorGrainge, KJB
dc.date.accessioned2018-10-10T10:44:48Z
dc.date.available2018-10-10T10:44:48Z
dc.date.issued2017-10-01
dc.identifier.issn0035-8711
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/283523
dc.description.abstract© 2018 The Author(s). Arcminute Microkelvin Imager observations towards CIZA J2242+5301, in comparison with observations of weak gravitational lensing and X-ray emission from the literature, are used to investigate the behaviour of non-baryonic dark matter (NBDM) and gas during the merger. Analysis of the Sunyaev-Zel'dovich (SZ) signal indicates the presence of high pressure gas elongated perpendicularly to the X-ray and weak-lensing morphologies, which, given the merger-axis constraints in the literature, implies that high pressure gas is pushed out into a linear structure during core passing. Simulations in the literature closely matching the inferred merger scenario show the formation of gas density and temperature structures perpendicular to the merger axis. These SZ observations are challenging for modified gravity theories in which NBDM is not the dominant contributor to galaxy-cluster gravity.
dc.description.sponsorshipSTFC (ST/M001172/1) STFC (ST/K00333X/1) STFC (ST/M007065/1) STFC (ST/H008586/1) STFC (ST/J005673/1)
dc.publisherOxford University Press (OUP)
dc.titleAMI SZ observation of galaxy-cluster merger CIZA J2242+5301: Perpendicular flows of gas and dark matter
dc.typeArticle
prism.endingPage4645
prism.issueIdentifier4
prism.publicationDate2017
prism.publicationNameMonthly Notices of the Royal Astronomical Society
prism.startingPage4638
prism.volume470
dc.identifier.doi10.17863/CAM.30886
dcterms.dateAccepted2017-06-06
rioxxterms.versionofrecord10.1093/mnras/stx1429
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2017-10-01
dc.contributor.orcidPerrott, Yvette Chanel [0000-0002-6255-8240]
dc.contributor.orcidSaunders, Richard [0000-0003-3167-5863]
dc.identifier.eissn1365-2966
dc.publisher.urlhttp://dx.doi.org/10.1093/mnras/stx1429
rioxxterms.typeJournal Article/Review
pubs.funder-project-idScience and Technology Facilities Council (ST/M001172/1)
pubs.funder-project-idScience and Technology Facilities Council (ST/K00333X/1)
pubs.funder-project-idScience and Technology Facilities Council (ST/M007065/1)
pubs.funder-project-idScience and Technology Facilities Council (ST/H008586/1)
pubs.funder-project-idScience and Technology Facilities Council (ST/J005673/1)
cam.issuedOnline2017-06-09
cam.orpheus.successTue Mar 31 10:43:00 BST 2020 - The item has an open VoR version.
rioxxterms.freetoread.startdate2100-01-01


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