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dc.contributor.authorCroston, J.H.
dc.contributor.authorHardcastle, M.J.
dc.contributor.authorMingo, B.
dc.contributor.authorEvans, D.A.
dc.contributor.authorDicken, D.
dc.contributor.authorMorganti, R.
dc.contributor.authorTadhunter, C.N.
dc.date.accessioned2011-08-15T11:01:10Z
dc.date.available2011-08-15T11:01:10Z
dc.date.issued2011
dc.identifier.citationCroston , J H , Hardcastle , M J , Mingo , B , Evans , D A , Dicken , D , Morganti , R & Tadhunter , C N 2011 , ' A large-scale shock surrounding a powerful radio galaxy? ' , Astrophysical Journal Letters , vol. 734 , no. 2 PART 2 , L28 . https://doi.org/10.1088/2041-8205/734/2/L28
dc.identifier.issn2041-8213
dc.identifier.otherPURE: 249756
dc.identifier.otherPURE UUID: f79e5ab0-07f0-4d5d-93ad-baa5016ee647
dc.identifier.otherScopus: 79959466175
dc.identifier.urihttp://hdl.handle.net/2299/6185
dc.description‘In these times, during the rise in the popularity of institutional repositories, the Society does not forbid authors from depositing their work in such repositories. However, the AAS regards the deposit of scholarly work in such repositories to be a decision of the individual scholar, as long as the individual's actions respect the diligence of the journals and their reviewers.’ Original article can be found at : http://iopscience.iop.org/ Copyright American Astronomical Society
dc.description.abstractWe report Chandra evidence for a 200 kpc scale shock in the cluster surrounding the powerful radio galaxy 3C444. Our 20 ks observation allows us to identify a clear surface brightness drop around the outer edge of the radio galaxy, which is likely to correspond to a spheroidal shock propagating into the intracluster medium. We measure a temperature jump across this drop of a factor 1.7, which corresponds to a Mach number of 1.7. This is likely to be an underestimate due to the need to average over fairly large regions. We also detect clear cavities corresponding to the positions of the radio lobes, which is only the second such detection associated with an FRII radio galaxy. We estimate that the total energy transferred to the environment is >8.2 × 1060erg, corresponding to a jet power >2.9 × 10 45ergs-1. Our results suggest that energy input from FRII radio galaxies is likely to exceed substantially estimates based on cluster cavity scaling relations.en
dc.language.isoeng
dc.relation.ispartofAstrophysical Journal Letters
dc.subjectgalaxies : active
dc.subjectgalaxies : jets
dc.titleA large-scale shock surrounding a powerful radio galaxy?en
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1088/2041-8205/734/2/L28
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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