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Triggering Active Galactic Nuclei in galaxy clusters

dc.contributor.authorMarshall, Madeline A.
dc.contributor.authorShabala, Stanislav
dc.contributor.authorKrause, Martin G. H.
dc.contributor.authorPimbblet, Kevin A.
dc.contributor.authorCroton, Darren J.
dc.contributor.authorOwers, Matt S.
dc.date.accessioned2018-05-24T16:52:57Z
dc.date.available2018-05-24T16:52:57Z
dc.date.issued2018-03-01
dc.identifier.citationMarshall , M A , Shabala , S , Krause , M G H , Pimbblet , K A , Croton , D J & Owers , M S 2018 , ' Triggering Active Galactic Nuclei in galaxy clusters ' , Monthly Notices of the Royal Astronomical Society , vol. 474 , no. 3 , stx2996 , pp. 3615-3628 . https://doi.org/10.1093/mnras/stx2996
dc.identifier.issn0035-8711
dc.identifier.otherArXiv: http://arxiv.org/abs/1708.05519v2
dc.identifier.otherORCID: /0000-0002-9610-5629/work/63687371
dc.identifier.urihttp://hdl.handle.net/2299/20073
dc.descriptionThis article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. © 2017 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.
dc.description.abstractWe model the triggering of active galactic nuclei (AGN) in galaxy clusters using the semianalytic galaxy formation model SAGE. We prescribe triggering methods based on the ram pressure galaxies experience as they move throughout the intracluster medium, which is hypothesized to trigger star formation and AGN activity. The clustercentric radius and velocity distribution of the simulated active galaxies produced by thesemodels are compared with those of AGN and galaxies with intense star formation from a sample of low-redshift relaxed clusters from the Sloan Digital Sky Survey. The ram pressure triggering model that best explains the clustercentric radius and velocity distribution of these observed galaxies has AGN and star formation triggered if 2.5 × 10 -14 Pa < P ram < 2.5 × 10 -13 Pa and P ram > 2P internal; this is consistent with expectations from hydrodynamical simulations of ram-pressure-induced star formation. Our results show that ram pressure is likely to be an important mechanism for triggering star formation and AGN activity in clusters.en
dc.format.extent14
dc.format.extent3297873
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.subjectGalaxies: active
dc.subjectGalaxies: clusters: general
dc.subjectGalaxies: evolution
dc.subjectGalaxies: formation
dc.subjectAstronomy and Astrophysics
dc.subjectSpace and Planetary Science
dc.titleTriggering Active Galactic Nuclei in galaxy clustersen
dc.contributor.institutionCentre for Astrophysics Research (CAR)
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85040257487&partnerID=8YFLogxK
rioxxterms.versionofrecord10.1093/mnras/stx2996
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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