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dc.contributor.authorCao, Y.
dc.contributor.authorKasliwal, M.
dc.contributor.authorArcavi, I.
dc.contributor.authorHoresh, A.
dc.contributor.authorHancock, Paul
dc.contributor.authorValenti, S.
dc.contributor.authorBradley Cenko, S.
dc.contributor.authorKulkarni, S.
dc.contributor.authorGal-Yam, A.
dc.contributor.authorGorbikov, E.
dc.contributor.authorOfek, E.
dc.contributor.authorSand, D.
dc.contributor.authorYaron, O.
dc.contributor.authorGraham, M.
dc.contributor.authorSilverman, J.
dc.contributor.authorCraig Wheeler, J.
dc.contributor.authorMarion, G.
dc.contributor.authorWalker, E.
dc.contributor.authorMazzali, P.
dc.contributor.authorHowell, D.
dc.contributor.authorLi, K.
dc.contributor.authorKong, A.
dc.contributor.authorBloom, J.
dc.contributor.authorNugent, P.
dc.contributor.authorSurace, J.
dc.contributor.authorMasci, F.
dc.contributor.authorCarpenter, J.
dc.contributor.authorDegenaar, N.
dc.contributor.authorGelino, C.
dc.identifier.citationCao, Y. and Kasliwal, M. and Arcavi, I. and Horesh, A. and Hancock, P. and Valenti, S. and Bradley Cenko, S. et al. 2013. Discovery, progenitor and early evolution of a stripped envelope supernova iPTF13bvn. The Astrophysical Journal Letters. 775 (1): pp. 1-7.

The intermediate Palomar Transient Factory reports our discovery of a young supernova, iPTF13bvn, in the nearby galaxy, NGC 5806 (22.5 Mpc). Our spectral sequence in the optical and infrared suggests a Type Ib classification.We identify a blue progenitor candidate in deep pre-explosion imaging within a 2s error circle of 80 mas (8.7 pc). The candidate has an MB luminosity of -5.52 ± 0.39 mag and a B-I color of 0.25 ± 0.25 mag. If confirmed by future observations, this would be the first direct detection for a progenitor of a Type Ib. Fitting a power law to the early light curve, we find an extrapolated explosion date around 0.6 days before our first detection. We see no evidence of shock cooling. The pre-explosion detection limits constrain the radius of the progenitor to be smallerthan a few solar radii. iPTF13bvn is also detected in centimeter and millimeter wavelengths. Fitting a synchrotron self-absorption model to our radio data, we find a mass-loading parameter of 1.3×1012 g cm-1. Assuming a wind velocity of 103 km s-1, we derive a progenitor mass-loss rate of 3 × 10-5M yr-1. Our observations, taken as awhole, are consistent with a Wolf–Rayet progenitor of the supernova iPTF13bvn.

dc.publisherInstitute of Physics Publishing Ltd.
dc.subjectindividual - (iPTF13bvn) – surveys
dc.subjectadaptive optics – shock waves – stars
dc.subjectWolf–Rayet – supernovae
dc.titleDiscovery, progenitor and early evolution of a stripped envelope supernova iPTF13bvn
dc.typeJournal Article
dcterms.source.titleThe Astrophysical Journal Letters
curtin.accessStatusFulltext not available

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