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dc.contributor.authorSparks, W.B.
dc.contributor.authorPringle, J. E.
dc.contributor.authorCarswell, R. F.
dc.contributor.authorDonahue, M.
dc.contributor.authorMartin, R.
dc.contributor.authorVoit, M.
dc.contributor.authorCracraft, M.
dc.contributor.authorManset, N.
dc.contributor.authorHough, J. H.
dc.date.accessioned2012-07-30T14:00:42Z
dc.date.available2012-07-30T14:00:42Z
dc.date.issued2012-05-01
dc.identifier.citationSparks , W B , Pringle , J E , Carswell , R F , Donahue , M , Martin , R , Voit , M , Cracraft , M , Manset , N & Hough , J H 2012 , ' Hundred thousand degree gas in the virgo cluster of galaxies. ' , Astrophysical Journal Letters , vol. 750 , no. 1 , L5 . https://doi.org/10.1088/2041-8205/750/1/L5
dc.identifier.issn2041-8205
dc.identifier.otherPURE: 952023
dc.identifier.otherPURE UUID: 0dbc9d21-b139-43a4-9ecf-196542f69ab6
dc.identifier.otherWOS: 000303039700005
dc.identifier.otherScopus: 84859900851
dc.identifier.urihttp://hdl.handle.net/2299/8745
dc.description.abstractThe physical relationship between low-excitation gas filaments at similar to 10(4) K, seen in optical line emission, and diffuse X-ray emitting coronal gas at similar to 10(7) K in the centers of many galaxy clusters is not understood. It is unclear whether the similar to 10(4) K filaments have cooled and condensed from the ambient hot (similar to 10(7) K) medium or have some other origin such as the infall of cold gas in a merger, or the disturbance of an internal cool reservoir of gas by nuclear activity. Observations of gas at intermediate temperatures (similar to 10(5)-10(6) K) can potentially reveal whether the central massive galaxies are gaining cool gas through condensation or losing it through conductive evaporation and hence identify plausible scenarios for transport processes in galaxy cluster gas. Here we present spectroscopic detection of similar to 10(5) K gas spatially associated with the II alpha filaments in a central cluster galaxy, M87, in the Virgo Cluster. The measured emission-line fluxes from triply ionized carbon (C IV 1549 angstrom) and singly ionized helium (He II 1640 angstrom) are consistent with a model in which thermal conduction determines the interaction between hot and cold phases.en
dc.format.extent4
dc.language.isoeng
dc.relation.ispartofAstrophysical Journal Letters
dc.rights/dk/atira/pure/core/openaccesspermission/open
dc.titleHundred thousand degree gas in the virgo cluster of galaxies.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
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeFinal Accepted Version
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1088/2041-8205/750/1/L5
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeopenAccess


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