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dc.contributor.authorHoare, M.G.
dc.contributor.authorDrew, J.E.
dc.contributor.authorDenby, M.
dc.identifier.citationHoare , M G , Drew , J E & Denby , M 1993 , ' The 1st measurement of the Lyman continuum emission from normal stars ' , Monthly Notices of the Royal Astronomical Society , vol. 262 , no. 1 , pp. L19-L22 .
dc.identifier.otherPURE: 154597
dc.identifier.otherPURE UUID: 38980e46-c5fb-45bf-90a4-7f11bcc68832
dc.identifier.otherdspace: 2299/4052
dc.descriptionOriginal article can be found at: Copyright Royal Astronomical Society [Full text of this article is not available in the UHRA]
dc.description.abstractWe report the first measurements of Lyman continuum emission from non-degenerate stars. The Wide Field Camera on-board ROSAT detected strong emission from Beta CMa (B1 II-III) and Epsilon CMa (B2 II). Both Kurucz LTE line-blanketed and Mihalas NLTE unblanketed model atmospheres can match the observed count rate for Beta CMa within the known constraints on T(eff) and N(H). For Epsilon CMa, we find that the interstellar column must be at most 9 x 10 exp 17/sq cm, and probably much lower still, to explain the very strong EUV flux. We also find marginal evidence for regular variability in the Lyman continuum emission for Beta CMa, but not at the dominant period of the known optical pulsations.en
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.titleThe 1st measurement of the Lyman continuum emission from normal starsen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
rioxxterms.typeJournal Article/Review

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