Iron abundance profiles of 12 clusters of galaxies observed with BeppoSAX

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dc.contributor.authorIrwin, JA
dc.contributor.authorBregman, JN
dc.contributor.otherUniversity of Michigan System
dc.contributor.otherUniversity of Michigan
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.date.accessioned2018-09-14T21:30:59Z
dc.date.available2018-09-14T21:30:59Z
dc.date.issued2001-01-01
dc.description.abstractWe have derived azimuthally averaged radial iron-abundance profiles of the X-ray gas contained within 12 clusters of galaxies with redshift 0.03 less than or equal to z less than or equal to 0.2 observed with BeppoSAX. We find evidence for a negative metal-abundance gradient in most of the clusters, particularly significant in clusters that possess cooling flows. The composite profile from the 12 clusters resembles that of cluster simulations of Metzler & Evrard. This abundance gradient could be the result of the spatial distribution of gas-losing galaxies within the cluster being more centrally condensed than the primordial hot gas. Both inside and outside the core region we find a higher abundance in cooling-flow clusters than in non-cooling-flow clusters. Outside of the cooling region this difference cannot be the result of more efficient sputtering of metals into the gaseous phase in cooling-flow clusters but might be the result of the mixing of low-metallicity gas from the outer regions of the cluster during a merger.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.citationIrwin, J., Bregman, J. (2001): Iron Abundance Profiles of 12 Clusters of Galaxies Observed With BeppoSAX. The Astrophysical Journal, 546(1). DOI: 10.1086/318240
dc.identifier.doi10.1086/318240
dc.identifier.urihttp://ir.ua.edu/handle/123456789/3872
dc.languageEnglish
dc.language.isoen_US
dc.publisherIOP Publishing
dc.subjectcooling flows
dc.subjectgalaxies : clusters : general
dc.subjectintergalactic medium
dc.subjectX-rays : galaxies
dc.subjectRAY-EMITTING GAS
dc.subjectCOOLING FLOWS
dc.subjectINTRACLUSTER MEDIUM
dc.subjectRADIAL TEMPERATURE
dc.subjectASCA MEASUREMENTS
dc.subjectMETALLICITY
dc.subjectCONSTRAINTS
dc.subjectROSAT
dc.subjectIA
dc.subjectAstronomy & Astrophysics
dc.titleIron abundance profiles of 12 clusters of galaxies observed with BeppoSAXen_US
dc.typetext
dc.typeArticle
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