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

Avishay Gal-Yam (), I. Arcavi, E. O. Ofek, S. Ben-Ami, S. B. Cenko, M. M. Kasliwal, Y. Cao, O. Yaron, D. Tal, J. M. Silverman, A. Horesh, A. De Cia, F. Taddia, J. Sollerman, D. Perley, P. M. Vreeswijk, S. R. Kulkarni, P. E. Nugent, A. V. Filippenko and J. C. Wheeler
Additional contact information
Avishay Gal-Yam: Weizmann Institute of Science, Rehovot 76100, Israel
I. Arcavi: Weizmann Institute of Science, Rehovot 76100, Israel
E. O. Ofek: Weizmann Institute of Science, Rehovot 76100, Israel
S. Ben-Ami: Weizmann Institute of Science, Rehovot 76100, Israel
S. B. Cenko: NASA Goddard Space Flight Center, Mail Code 661, Greenbelt, Maryland 20771, USA
M. M. Kasliwal: Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street
Y. Cao: Cahill Center for Astrophysics, California Institute of Technology
O. Yaron: Weizmann Institute of Science, Rehovot 76100, Israel
D. Tal: Weizmann Institute of Science, Rehovot 76100, Israel
J. M. Silverman: University of Texas
A. Horesh: Cahill Center for Astrophysics, California Institute of Technology
A. De Cia: Weizmann Institute of Science, Rehovot 76100, Israel
F. Taddia: The Oskar Klein Centre, Stockholm University, AlbaNova, 10691 Stockholm, Sweden
J. Sollerman: The Oskar Klein Centre, Stockholm University, AlbaNova, 10691 Stockholm, Sweden
D. Perley: Cahill Center for Astrophysics, California Institute of Technology
P. M. Vreeswijk: Weizmann Institute of Science, Rehovot 76100, Israel
S. R. Kulkarni: Cahill Center for Astrophysics, California Institute of Technology
P. E. Nugent: Lawrence Berkeley National Laboratory
A. V. Filippenko: University of California
J. C. Wheeler: University of Texas

Nature, 2014, vol. 509, issue 7501, 471-474

Abstract: The detection of strong emission lines in an early-time spectrum of type IIb supernova SN 2013cu reveals Wolf–Rayet-like wind signatures, suggesting that the supernova’s progenitor may have been a Wolf–Rayet star with a wind dominated by helium and nitrogen, with traces of hydrogen.

Date: 2014
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DOI: 10.1038/nature13304

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