SN 2003bg: A BROAD-LINED TYPE IIb SUPERNOVA WITH HYDROGEN
文献类型：期刊论文
| 作者 | Mazzali, Paolo A.1,2,3,4; Deng, Jinsong5 ; Hamuy, Mario6; Nomoto, Ken'ichi7
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2009-10-01 |
| 卷号 | 703期号:2页码:1624-1634 |
| 关键词 | nuclear reactions, nucleosynthesis, abundances stars: evolution supernovae: general supernovae: individual (SN 2003bg) |
| 英文摘要 | Models for the spectra and the light curve (LC), in the photospheric as well as in the late nebular phase, are used to infer the properties of the very radio-bright, broad-lined type IIb supernova (SN) 2003bg. Consistent fits to the LC and the spectral evolution are obtained with an explosion that ejected approximate to 4 M(circle dot) of material with a kinetic energy of approximate to 5 x 10(51) erg. A thin layer of hydrogen, comprising similar to 0.05 M(circle dot), is inferred to be present in the ejecta at the highest velocities (v greater than or similar to 9000 km s(-1)), while a thicker helium layer, comprising approximate to 1.25 M(circle dot), was ejected at velocities between 6500 and 9000 km s(-1). At lower velocities, heavier elements are present, including similar to 0.2 M(circle dot) of (56)Ni that shape the LC and the late-time nebular spectra. These values suggest that the progenitor star had a mass of approximate to 20-25 M(circle dot), (comparable to, but may be somewhat smaller than that of the progenitor of the X-ray flashes/SN 2008D). The rather broad-lined early spectra are the result of the presence of a small amount of material (similar to 0.03 M(circle dot)) at velocities >0.1c, which carries approximate to 10% of the explosion kinetic energy. No clear signatures of a highly aspherical explosion are detected. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000269929500035 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7560]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Scuola Normale Super Pisa, I-56126 Pisa, Italy 2.Natl Inst Astrophys OAPd, I-35122 Padua, Italy 3.Max Planck Inst Astrophys, D-85748 Garching, Germany 4.Univ Tokyo, Res Ctr Early Universe, Bunkyo Ku, Tokyo 1130033, Japan 5.CAS, Natl Astron Observ, Beijing 100012, Peoples R China 6.Univ Chile, Dept Astron, Santiago, Chile 7.Univ Tokyo, Inst Phys & Math Universe, Chiba 2778568, Japan |
| 推荐引用方式 GB/T 7714 | Mazzali, Paolo A.,Deng, Jinsong,Hamuy, Mario,et al. SN 2003bg: A BROAD-LINED TYPE IIb SUPERNOVA WITH HYDROGEN[J]. ASTROPHYSICAL JOURNAL,2009,703(2):1624-1634. |
| APA | Mazzali, Paolo A.,Deng, Jinsong,Hamuy, Mario,&Nomoto, Ken'ichi.(2009).SN 2003bg: A BROAD-LINED TYPE IIb SUPERNOVA WITH HYDROGEN.ASTROPHYSICAL JOURNAL,703(2),1624-1634. |
| MLA | Mazzali, Paolo A.,et al."SN 2003bg: A BROAD-LINED TYPE IIb SUPERNOVA WITH HYDROGEN".ASTROPHYSICAL JOURNAL 703.2(2009):1624-1634. |
入库方式： OAI收割
来源：国家天文台
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