SN 2013ej IN M74: A LUMINOUS AND FAST-DECLINING TYPE II-P SUPERNOVA
文献类型：期刊论文
| 作者 | Huang, Fang1,2,3; Wang, Xiaofeng2,3; Zhang, Jujia4,5,6; Brown, Peter J.7; Zampieri, Luca8; Pumo, Maria Letizia9; Zhang, Tianmeng10 ; Chen, Juncheng2,3; Mo, Jun2,3; Zhao, Xulin2,3
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2015-07-01 |
| 卷号 | 807期号:1 |
| 关键词 | galaxies: individual (M74) supernovae: general supernovae: individual (SN 2013ej) |
| 英文摘要 | We present extensive ultraviolet, optical, and near-infrared observations of the Type IIP supernova (SN IIP) 2013ej in the nearby spiral galaxy M74. The multicolor light curves, spanning from similar to 8-185 days after explosion, show that it has a higher peak luminosity (i.e., M-V similar to -17.83 mag at maximum light), a faster post-peak decline, and a shorter plateau phase (i.e., similar to 50 days) compared to the normal Type IIP SN 1999em. The mass of Ni-56 is estimated as 0.02 +/- 0.01 M-circle dot from the radioactive tail of the bolometric light curve. The spectral evolution of SN 2013ej is similar to that of SN 2004et and SN 2007od, but shows a larger expansion velocity (i.e., v(Fe II) similar to 4600 km s(-1) at t similar to 50 days) and broader line profiles. In the nebular phase, the emission of the H alpha line displays a double-peak structure, perhaps due to the asymmetric distribution of Ni-56 produced in the explosion. With the constraints from the main observables such as bolometric light curve, expansion velocity, and photospheric temperature of SN 2013ej, we performed hydrodynamical simulations of the explosion parameters, yielding the. total explosion energy as similar to 0.7x 10(51) erg, the. radius of the progenitor as similar to 600 R-circle dot, and the ejected mass as similar to 10.6M(circle dot). These results suggest that SN 2013ej likely arose from a red supergiant with a mass of 12-13M(circle dot) immediately before the explosion. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000358945200059 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5634]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 2.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 3.Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China 4.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China 5.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650011, Peoples R China 6.Chinese Acad Sci, Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.Texas A&M Univ, Dept Phys & Astron, George P & Cynthia Woods Mitchell Inst Fundamenta, College Stn, TX 77843 USA 8.INAF Osservatorio Astron Padova, I-35122 Padua, Italy 9.INAF Osservatorio Astron Palermo Giuseppe S Vaian, I-90134 Palermo, Italy 10.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Fang,Wang, Xiaofeng,Zhang, Jujia,et al. SN 2013ej IN M74: A LUMINOUS AND FAST-DECLINING TYPE II-P SUPERNOVA[J]. ASTROPHYSICAL JOURNAL,2015,807(1). |
| APA | Huang, Fang.,Wang, Xiaofeng.,Zhang, Jujia.,Brown, Peter J..,Zampieri, Luca.,...&Zhao, Xulin.(2015).SN 2013ej IN M74: A LUMINOUS AND FAST-DECLINING TYPE II-P SUPERNOVA.ASTROPHYSICAL JOURNAL,807(1). |
| MLA | Huang, Fang,et al."SN 2013ej IN M74: A LUMINOUS AND FAST-DECLINING TYPE II-P SUPERNOVA".ASTROPHYSICAL JOURNAL 807.1(2015). |
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来源：国家天文台
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