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Asphericity in supernova explosions from late-time spectroscopy
文献类型：期刊论文
| 作者 | Maeda, Keiichi1,2,3; Kawabata, Koji4; Mazzali, Paolo A.2,5,6; Tanaka, Masaomi7; Valenti, Stefano8,9; Nomoto, Ken'ichi1,6,7; Hattori, Takashi10; Deng, Jinsong11 ; Pian, Elena5; Taubenberger, Stefan2
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| 刊名 | SCIENCE
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| 出版日期 | 2008-02-29 |
| 卷号 | 319期号:5867页码:1220-1223 |
| 英文摘要 | Core- collapse supernovae (CC-SNe) are the explosions that announce the death of massive stars. Some CC- SNe are linked to long- duration gamma- ray bursts ( GRBs) and are highly aspherical. One important question is to what extent asphericity is common to all CC- SNe. Here we present late- time spectra for a number of CC- SNe from stripped- envelope stars and use them to explore any asphericity generated in the inner part of the exploding star, near the site of collapse. A range of oxygen emission- line profiles is observed, including a high incidence of double- peaked profiles, a distinct signature of an aspherical explosion. Our results suggest that all CC- SNe from stripped- envelope stars are aspherical explosions and that SNe accompanied by GRBs exhibit the highest degree of asphericity. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000253530600036 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7395]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Univ Tokyo, IPMU, Kashiwa, Chiba 2778582, Japan 2.Max Planck Inst Astrophys, D-85741 Garching, Germany 3.Univ Tokyo, Coll Arts & Sci, Dept Earth Sci & Astron, Tokyo 1538902, Japan 4.Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan 5.Natl Inst Astrophys, Osservatorio Astron Trieste, I-34143 Trieste, Italy 6.Univ Tokyo, Sch Sci, Res Ctr Early Universe, Tokyo 1130033, Japan 7.Univ Tokyo, Sch Sci, Dept Astron, Tokyo 1130033, Japan 8.Univ Ferrara, Dept Phys, I-44100 Ferrara, Italy 9.European Org Astron Res So Hemisphere, D-85741 Garching, Germany 10.Natl Inst Nat Sci, Natl Astron Observ Japan, Subaru Telescope, Hilo, HI 96720 USA |
| 推荐引用方式 GB/T 7714 | Maeda, Keiichi,Kawabata, Koji,Mazzali, Paolo A.,et al. Asphericity in supernova explosions from late-time spectroscopy[J]. SCIENCE,2008,319(5867):1220-1223. |
| APA | Maeda, Keiichi.,Kawabata, Koji.,Mazzali, Paolo A..,Tanaka, Masaomi.,Valenti, Stefano.,...&Takata, Tadafumi.(2008).Asphericity in supernova explosions from late-time spectroscopy.SCIENCE,319(5867),1220-1223. |
| MLA | Maeda, Keiichi,et al."Asphericity in supernova explosions from late-time spectroscopy".SCIENCE 319.5867(2008):1220-1223. |
入库方式： OAI收割
来源：国家天文台
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