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dc.contributor.authorDiehl, R.
dc.contributor.authorSiegert, T.
dc.contributor.authorHillebrandt, W.
dc.contributor.authorGrebenev, S.~A.
dc.contributor.authorGreiner, J.
dc.contributor.authorKrause, M.
dc.contributor.authorKromer, M.
dc.contributor.authorMaeda, K.
dc.contributor.authorRöpke, F.
dc.contributor.authorTaubenberger, S.
dc.identifier.citationDiehl , R , Siegert , T , Hillebrandt , W , Grebenev , S A , Greiner , J , Krause , M , Kromer , M , Maeda , K , Röpke , F & Taubenberger , S 2014 , ' Early 56Ni decay gamma rays from SN2014J suggest an unusual explosion ' , Science , vol. 345 , no. 6201 , pp. 1162-1165 .
dc.identifier.otherPURE: 10546754
dc.identifier.otherPURE UUID: 48fc5517-1ec6-4e2c-b56e-0bd1ec8f5549
dc.identifier.otherBibtex: urn:d2765dd499e6e9e333549658a77ea1ba
dc.identifier.otherScopus: 84907229784
dc.identifier.otherORCID: /0000-0002-9610-5629/work/63687400
dc.descriptionRoland Diehl, et al, 'Early 56Ni decay gamma rays from SN2014J suggest an unusual explosion', Science, Vol. 345 (6201): 1162-1165, September 2014, doi: 10.1126/science.1254738.
dc.description.abstractType Ia supernovae result from binary systems that include a carbon-oxygen white dwarf, and these thermonuclear explosions typically produce 0.5 solar mass of radioactive 56Ni. The 56Ni is commonly believed to be buried deeply in the expanding supernova cloud. In SN2014J, we detected the lines at 158 and 812 kiloelectron volts from 56Ni decay (time ~8.8 days) earlier than the expected several-week time scale, only ~20 days after the explosion and with flux levels corresponding to roughly 10% of the total expected amount of 56Ni. Some mechanism must break the spherical symmetry of the supernova and at the same time create a major amount of 56Ni at the outskirts. A plausible explanation is that a belt of helium from the companion star is accreted by the white dwarf, where this material explodes and then triggers the supernova event.en
dc.titleEarly 56Ni decay gamma rays from SN2014J suggest an unusual explosionen
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionSchool of Physics, Engineering & Computer Science
dc.contributor.institutionDepartment of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
rioxxterms.typeJournal Article/Review

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