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A giant outburst tw...
A giant outburst two years before the core-collapse of a massive star
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Pastorello, A. (author)
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Smartt, S. J. (author)
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Mattila, S. (author)
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Eldridge, J. J. (author)
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Young, D. (author)
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Itagaki, K. (author)
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Yamaoka, H. (author)
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Navasardyan, H. (author)
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Valenti, S. (author)
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Patat, F. (author)
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Agnoletto, I. (author)
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Augusteijn, T. (author)
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Benetti, S. (author)
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Cappellaro, E. (author)
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Boles, T. (author)
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Bonnet-Bidaud, J. -M (author)
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Botticella, M. T. (author)
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Bufano, F. (author)
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Cao, C. (author)
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Deng, J. (author)
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Dennefeld, M. (author)
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Elias-Rosa, N. (author)
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Harutyunyan, A. (author)
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Keenan, F. P. (author)
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Iijima, T. (author)
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Lorenzi, V. (author)
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Mazzali, P. A. (author)
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Meng, X. (author)
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Nakano, S. (author)
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Nielsen, T. B. (author)
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Smoker, J. V. (author)
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- Stanishev, Vallery (author)
- Stockholms universitet,Fysikum
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Turatto, M. (author)
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Xu, D. (author)
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Zampieri, L. (author)
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(creator_code:org_t)
- Springer Science and Business Media LLC, 2007
- 2007
- English.
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In: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 447:7146, s. 829-832
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http://arxiv.org/pdf...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- The death of massive stars produces a variety of supernovae, which are linked to the structure of the exploding stars(1,2). The detection of several precursor stars of type II supernovae has been reported ( see, for example, ref. 3), but we do not yet have direct information on the progenitors of the hydrogen-deficient type Ib and Ic supernovae. Here we report that the peculiar type Ib supernova SN 2006jc is spatially coincident with a bright optical transient(4) that occurred in 2004. Spectroscopic and photometric monitoring of the supernova leads us to suggest that the progenitor was a carbon-oxygen Wolf - Rayet star embedded within a helium-rich circumstellar medium. There are different possible explanations for this pre-explosion transient. It appears similar to the giant outbursts of luminous blue variable stars (LBVs) of 60 - 100 solar masses(5), but the progenitor of SN 2006jc was helium- and hydrogen-deficient ( unlike LBVs). An LBV-like outburst of a Wolf - Rayet star could be invoked, but this would be the first observational evidence of such a phenomenon. Alternatively, a massive binary system composed of an LBV that erupted in 2004, and a Wolf - Rayet star exploding as SN 2006jc, could explain the observations.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- eta-carinae
- supernova
- progenitors
- evolution
- lines
- Physics
- Fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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Nature
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- By the author/editor
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Pastorello, A.
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Smartt, S. J.
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Mattila, S.
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Eldridge, J. J.
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Young, D.
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Itagaki, K.
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show more...
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Yamaoka, H.
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Navasardyan, H.
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Valenti, S.
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Patat, F.
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Agnoletto, I.
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Augusteijn, T.
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Benetti, S.
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Cappellaro, E.
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Boles, T.
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Bonnet-Bidaud, J ...
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Botticella, M. T ...
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Bufano, F.
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Cao, C.
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Deng, J.
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Dennefeld, M.
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Elias-Rosa, N.
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Harutyunyan, A.
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Keenan, F. P.
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Iijima, T.
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Lorenzi, V.
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Mazzali, P. A.
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Meng, X.
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Nakano, S.
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Nielsen, T. B.
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Smoker, J. V.
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Stanishev, Valle ...
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Turatto, M.
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Xu, D.
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Zampieri, L.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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Nature
- By the university
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Stockholm University