Models for the Type Ic hypernova SN 2003lw associated with GRB 031203

	Models for the Type Ic hypernova SN 2003lw associated with GRB 031203
	Mazzali, Paolo A.; Deng, Jinsong; Pian, Elena ; Malesani, Daniele ; Tominaga, Nozomu ; Maeda, Keiichi ; Nomoto, Ken'ichi ; Chincarini, Guido ; Covino, Stefano ; Della Valle, Massimo
刊名	ASTROPHYSICAL JOURNAL
	2006-07-10
卷号	645 期号:2 页码:1323-1330
关键词	gamma rays : bursts nuclear reactions, nucleosynthesis, abundances supernovae : general supernovae : individual (SN 2003lw)
英文摘要	The gamma-ray burst GRB 031203 at a redshift z = 0.1055 revealed a highly reddened Type Ic supernova, SN 20031w, in its afterglow light. This is the third well-established case of a link between a long-duration GRB and a Type Ic SN. The SN light curve is obtained by subtracting the galaxy contribution and is modeled together with two spectra at near-maximum epochs. A red VLT grism 150I spectrum of the SN near peak is used to extend the spectral coverage, and in particular to constrain the uncertain reddening, the most likely value for which is EG+H(B - V) similar or equal to 1.07 +/- 0.05. Accounting for reddening, SN 20031w is similar to 0.3 mag brighter than the prototypical GRB-SN 1998bw. Light curve models yield a Ni-56 mass of similar to 0.55 M-circle dot. The optimal explosion model is somewhat more massive (M-ej similar to 13 M-circle dot) and more energetic (E similar to 6 x 10(52) ergs) than the model for SN 1998bw, implying a massive progenitor (40-50 M-(c)). The mass at high velocity is not very large (1.4 M-circle dot above 30,000 km s(-1), but only 0.1 M-circle dot above 60,000 km s(-1)), but it is sufficient to cause the observed broad lines. The similarity of SNe 20031w and 1998bw and the weakness of their related GRBs, GRB 031203 and GRB 980425, suggest that both GRBs may be normal events viewed slightly off-axis or a weaker but possibly more frequent type of GRB.
收录类别	SCI
语种	英语
WOS记录号	WOS:000239053900048
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/7046]
专题	国家天文台_空间科学研究部
作者单位	1.Univ Tokyo, Dept Astron, Bunkyo Ku, Tokyo 1130033, Japan 2.Univ Tokyo, Res Ctr Early Univ, Bunkyo Ku, Tokyo 1130033, Japan 3.Max Planck Inst Astrophys, D-85748 Garching, Germany 4.Osserv Astron Trieste, Natl Inst Astrophys, I-34131 Trieste, Italy 5.CAS, Natl Astron Observ, Beijing 100012, Peoples R China 6.SISSA, Int Sch Adv Studies, I-34014 Trieste, Italy 7.Univ Tokyo, Grad Sch Arts & Sci, Dept Earth Sci & Astron, Tokyo 1538902, Japan 8.Osservat Astron Brera, Natl Inst Astrophys, I-23807 Merate, Italy 9.Univ Milan, Dipartimento Fis, I-20126 Milan, Italy 10.Osserv Astrofis Arcetri, Natl Inst Astro, I-50125 Florence, Italy
推荐引用方式 GB/T 7714	Mazzali, Paolo A.,Deng, Jinsong,Pian, Elena,et al. Models for the Type Ic hypernova SN 2003lw associated with GRB 031203[J]. ASTROPHYSICAL JOURNAL,2006,645(2):1323-1330.
APA	Mazzali, Paolo A..,Deng, Jinsong.,Pian, Elena.,Malesani, Daniele.,Tominaga, Nozomu.,...&Gal-Yam, Avishay.(2006).Models for the Type Ic hypernova SN 2003lw associated with GRB 031203.ASTROPHYSICAL JOURNAL,645(2),1323-1330.
MLA	Mazzali, Paolo A.,et al."Models for the Type Ic hypernova SN 2003lw associated with GRB 031203".ASTROPHYSICAL JOURNAL 645.2(2006):1323-1330.