iPTF13bvn: the first evidence of a binary progenitor for a type Ib supernova

Bersten, Melina C. ; Benvenuto, Omar G. ; Folatelli, Gastón ; Nomoto, Ken'ichi ; Kuncarayakti, Hanindyo ; Srivastav, Shubham ; Anupama, G. C. ; Quimby, Robert ; Sahu, Devendra K. (2014) iPTF13bvn: the first evidence of a binary progenitor for a type Ib supernova Astronomical Journal, 148 (4). Article ID 68, 6 pages. ISSN 1538-3881

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Official URL: http://iopscience.iop.org/article/10.1088/0004-625...

Related URL: http://dx.doi.org/10.1088/0004-6256/148/4/68


The recent detection in archival Hubble Space Telescope images of an object at the location of supernova (SN) iPTF13bvn may represent the first direct evidence of the progenitor of a Type Ib SN. The object's photometry was found to be compatible with a Wolf-Rayet pre-SN star mass of ≈11 M ☉. However, based on hydrodynamical models, we show that the progenitor had a pre-SN mass of ≈3.5 M ☉ and that it could not be larger than ≈8 M ☉. We propose an interacting binary system as the SN progenitor and perform evolutionary calculations that are able to self-consistently explain the light curve shape, the absence of hydrogen, and the pre-SN photometry. We further discuss the range of allowed binary systems and predict that the remaining companion is a luminous O-type star of significantly lower flux in the optical than the pre-SN object. A future detection of such a star may be possible and would provide the first robust identification of a progenitor system for a Type Ib SN.

Item Type:Article
Source:Copyright of this article belongs to American Astronomical Society.
Keywords:Stars: Evolution; Supernovae: General; Supernovae: Individual (iPTF13bvn)
ID Code:100472
Deposited On:10 Dec 2016 12:22
Last Modified:10 Dec 2016 12:22

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