The Type Ic hypernova SN 2002ap
文献类型：期刊论文
| 作者 | Mazzali, PA; Deng, J ; Maeda, K; Nomoto, K; Umeda, H; Hatano, K; Iwamoto, K; Yoshii, Y; Kobayashi, Y; Minezaki, T
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2002-06-10 |
| 卷号 | 572期号:1页码:L61-L65 |
| 关键词 | gamma rays : bursts line : formation line : identification nuclear, reactions, nucleosynthesis, abundances supernovae : general supernovae : individual (SN 2002ap) |
| 英文摘要 | Photometric and spectroscopic data of the energetic Type Ic supernova (SN) 2002ap are presented, and the properties of the SN are investigated through models of its spectral evolution and its light curve. The SN is spectroscopically similar to the "hypernova" SN 1997ef. However, its kinetic energy [similar to (4-20) x 10(51) ergs] and the mass ejected (2.5-5 M(.)) are smaller, resulting in a faster evolving light curve. The SN synthesized similar to 0.07 M(.) of (56)Ni, and its peak luminosity was similar to that of normal SNe. Brightness alone should not be used to define a hypernova, whose defining character, namely very broad spectral features, is the result of high kinetic energy. The likely main-sequence mass of the progenitor star was 20-25 M(.), which is also lower than that of both hypernovae SN 1997ef and SN 1998bw. SN 2002ap appears to lie at the low-energy and low-mass end of the hypernova sequence as it is known so far. Observations of the nebular spectrum, which is expected to dominate by the summer of 2002, are necessary to confirm these values. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000176005600013 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8493]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Univ Tokyo, Sch Sci, Res Ctr Early Universe, Bunkyo Ku, Tokyo 1130033, Japan 2.Univ Tokyo, Dept Astron, Bunkyo Ku, Tokyo 1130033, Japan 3.Osserv Astron Trieste, INAF, I-34131 Trieste, Italy 4.Nihon Univ, Dept Phys, Tokyo 1018308, Japan 5.Univ Tokyo, Inst Astron, Tokyo 1810015, Japan 6.Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England 7.Gunma Astron Observ, Gunma 3770702, Japan 8.Bisei Astron Observ, Okayama 7141411, Japan 9.Kyushu Univ, Sch Sci, Dept Phys, Chuo Ku, Fukuoka 8108560, Japan 10.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mazzali, PA,Deng, J,Maeda, K,et al. The Type Ic hypernova SN 2002ap[J]. ASTROPHYSICAL JOURNAL,2002,572(1):L61-L65. |
| APA | Mazzali, PA.,Deng, J.,Maeda, K.,Nomoto, K.,Umeda, H.,...&Turatto, M.(2002).The Type Ic hypernova SN 2002ap.ASTROPHYSICAL JOURNAL,572(1),L61-L65. |
| MLA | Mazzali, PA,et al."The Type Ic hypernova SN 2002ap".ASTROPHYSICAL JOURNAL 572.1(2002):L61-L65. |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。