The metamorphosis of Supernova SN2008D/XRF080109: a link between Supernovae and GRBs/Hypernovae

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dc.creatorMazzali, Paolo A.
dc.creatorValenti, Stefano
dc.creatorDella Valle, Massimo
dc.creatorChincarini, Guido
dc.creatorSauer, Daniel N.
dc.creatorBenetti, Stefano
dc.creatorPian, Elena
dc.creatorPiran, Tsvi
dc.creatorD'Elia, Valerio
dc.creatorElias-Rosa, Nancy
dc.creatorMargutti, Raffaella
dc.creatorPasotti, Francesco
dc.creatorAntonelli, L. Angelo
dc.creatorBufano, Filomena
dc.creatorCampana, Sergio
dc.creatorCappellaro, Enrico
dc.creatorCovino, Stefano
dc.creatorD'Avanzo, Paolo
dc.creatorFiore, Fabrizio
dc.creatorFugazza, Dino
dc.creatorGilmozzi, Roberto
dc.creatorHunter, Deborah
dc.creatorMaguire, Kate
dc.creatorMaiorano, Elisabetta
dc.creatorMarziani, Paola
dc.creatorMasetti, Nicola
dc.creatorMirabel, Felix
dc.creatorNavasardyan, Hripsime
dc.creatorNomoto, Ken'ichi
dc.creatorPalazzi, Eliana
dc.creatorPastorello, Andrea
dc.creatorPanagia, Nino
dc.creatorPellizza, Leonardo J.
dc.creatorSari, Re'em
dc.creatorSmartt, Stephen
dc.creatorTagliaferri, Gianpiero
dc.creatorTanaka, Masaomi
dc.creatorTaubenberger, Stefan
dc.creatorTominaga, Nozomu
dc.creatorTrundle, Carrie
dc.creatorTuratto, Massimo
dc.date2008-07-10
dc.date.accessioned2026-07-07T10:06:19Z
dc.date.available2026-07-07T10:06:19Z
dc.descriptionThe only supernovae (SNe) to have shown early gamma-ray or X-ray emission thus far are overenergetic, broad-lined Type Ic SNe (Hypernovae - HNe). Recently, SN 2008D shows several novel features: (i) weak XRF, (ii) an early, narrow optical peak, (iii) disappearance of the broad lines typical of SNIc HNe, (iv) development of He lines as in SNeIb. Detailed analysis shows that SN 2008D was not a normal SN: its explosion energy (KE ~ 6*10^{51} erg) and ejected mass (~7 Msun) are intermediate between normal SNeIbc and HNe. We derive that SN 2008D was originally a ~30Msun star. When it collapsed a black hole formed and a weak, mildly relativistic jet was produced, which caused the XRF. SN 2008D is probably among the weakest explosions that produce relativistic jets. Inner engine activity appears to be present whenever massive stars collapse to black holes.
dc.description22 pages, 7 figures. Accepted for publication in Science
dc.identifierhttps://arxiv.org/abs/0807.1695
dc.identifierhttp://arxiv.org/abs/0807.1695
dc.identifierScience, 321, 1185 (2008)
dc.identifierdoi:10.1126/science.1158088
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/170284
dc.subjectAstrophysics
dc.titleThe metamorphosis of Supernova SN2008D/XRF080109: a link between Supernovae and GRBs/Hypernovae
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