A Wolf–Rayet-like progenitor of SN 2013cu from spectral observations of a stellar wind

@article{Galyam2014AWP,
  title={A Wolf–Rayet-like progenitor of SN 2013cu from spectral observations of a stellar wind},
  author={Avishay Gal-yam and Iair Arcavi and Eran. O. Ofek and Sagi Ben-Ami and S. Bradley Cenko and Mansi M. Kasliwal and Y. Cao and Ofer Yaron and David Tal and Jeffrey M. Silverman and Assaf Horesh and Annalisa De Cia and Francesco Taddia and Jesper Sollerman and Daniel A. Perley and Paul M. Vreeswijk and Shrinivas R. Kulkarni and Peter E. Nugent and Alexei V. Filippenko and J. Craig Wheeler},
  journal={Nature},
  year={2014},
  volume={509},
  pages={471-474}
}
The explosive fate of massive Wolf–Rayet stars (WRSs) is a key open question in stellar physics. An appealing option is that hydrogen-deficient WRSs are the progenitors of some hydrogen-poor supernova explosions of types IIb, Ib and Ic (ref. 2). A blue object, having luminosity and colours consistent with those of some WRSs, has recently been identified in pre-explosion images at the location of a supernova of type Ib (ref. 3), but has not yet been conclusively determined to have been the… 

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Astrophysics: Windy stars that go with a bang

TLDR
The detection of strong emission lines in early spectra from the type IIb supernova SN 2013cu that are consistent with a Wolf–Rayet star as progenitor are reported, suggesting that these massive stars do end their lives as supernovae.

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  • S. Smartt
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    Publications of the Astronomical Society of Australia
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