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Supernova 2002ic: the collapse of a stripped-envelope, massive star in a dense medium ?

S. Benetti·E. Cappellaro·M. Turatto·S. Taubenberger·A. Harutyunyan·S. Valenti
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Abstract

We revisit the case of SN2002ic that recently revived the debate about the progenitors of SNeIa after the claim of the unprecedented presence of hydrogen lines over a diluted SNIa spectrum. As an alternative to the previous interpretation, we suggest that SN2002ic actually was a type Ic SN, the core collapse of a massive star which lost its hydrogen and helium envelope. In this scenario the observed interaction with a dense circumstellar material (CSM) is the predictable consequence of the intense mass-loss of the progenitor and/or of the presence of a gas rich environment. With this view we establish a link between energetic SNeIc and highly interacting SNeIIn and add some credits to the proposed association of some SNeIIn to GRBs.

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S. Benetti, E. Cappellaro, M. Turatto, S. Taubenberger, A. Harutyunyan, S. Valenti. 2006-11-03. Supernova 2002ic: the collapse of a stripped-envelope, massive star in a dense medium ?. https://doi.org/10.1086/510667

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