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A giant outburst two years before the core-collapse of a massive star
Pastorello, A.; Smartt, S. J.; Mattila, S.; Eldridge, J. J.; Young, D.; Itagaki, K.; Yamaoka, H.; Navasardyan, H.; Valenti, S.; Patat, F.; Agnoletto, I.; Augusteijn, T.; Benetti, S.; Cappellaro, E.; Boles, T.; Bonnet-Bidaud, J.-M.; Botticella, M. T.; Bufano, F.; Cao, C.; Deng, J.; Dennefeld, M.; Elias-Rosa, N.; Harutyunyan, A.; Keenan, F. P.; Iijima, T.; Lorenzi, V.; Mazzali, P. A.; Meng, X.; Nakano, S.; Nielsen, T. B.; Smoker, J. V.; Stanishev, V.; Turatto, M.; Xu, D.; Zampieri, L.
Source PublicationNATURE
AbstractThe 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.
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WOS IDWOS:000247207500037
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Document Type期刊论文
Affiliation1.Queens Univ Belfast, Sch Math & Phys, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland
2.Itagaki Astron Observ, Teppo, Yamagata 9902492, Japan
3.Kyushu Univ, Dept Phys, Fukuoka 8108560, Japan
4.Osserv Astron Padova, INAF, I-35122 Padua, Italy
5.European So Observ, D-85748 Garching, Germany
6.Univ Ferrara, Dipartmento Fis, I-44100 Ferrara, Italy
7.Univ Padua, Dipartimento Astron, I-35122 Padua, Italy
8.Nord Opt Telescope, E-38700 Tenerife, Spain
9.Coddenham Astron Observ, Coddenham IP6 9QY, Suffolk, England
10.Ctr Etud Saclay, Serv Astrophys, DSM, DAPNIA,SAp, F-91191 Gif Sur Yvette, France
11.Univ Teramo, Dipartimento Sci Comunicaz, I-64100 Teramo, Italy
12.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
13.CNRS, IN2P3, Ctr Phys Particules Marseille, F-13288 Marseille 9, France
14.Univ Aix Marseille 2, F-13288 Marseille 9, France
15.CNRS, Inst Astrophys, F-75014 Paris, France
16.Univ Paris 06, F-75014 Paris, France
17.Univ La Laguna, E-38206 Tenerife, Spain
18.Osserv Astron Padova, INAF, I-36012 Vicenza, Italy
19.Telescopio Nazl Galileo, Fdn Galileo Galilei, INAF, E-38700 Tenerife, Spain
20.Max Planck Inst Astrophys, D-85741 Garching, Germany
21.Osserv Astron Trieste, INAF, I-34131 Trieste, Italy
22.Oriental Astron Assoc, CtrAstrodynam, Comp & Minor Planet Sect, Sumoto, Hyogo 6560011, Japan
23.Stockholm Univ, AlbaNova Univ Ctr, Dept Phys, SE-10691 Stockholm, Sweden
Recommended Citation
GB/T 7714
Pastorello, A.,Smartt, S. J.,Mattila, S.,et al. A giant outburst two years before the core-collapse of a massive star[J]. NATURE,2007,447(7146):829-832.
APA Pastorello, A..,Smartt, S. J..,Mattila, S..,Eldridge, J. J..,Young, D..,...&Zampieri, L..(2007).A giant outburst two years before the core-collapse of a massive star.NATURE,447(7146),829-832.
MLA Pastorello, A.,et al."A giant outburst two years before the core-collapse of a massive star".NATURE 447.7146(2007):829-832.
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