SOLVING THE Ni-56 PUZZLE OF MAGNETAR-POWERED BROAD-LINED TYPE IC SUPERNOVAE
文献类型：期刊论文
| 作者 | Wang, Ling-Jun1; Han, Yan-Hui1; Xu, Dong1; Wang, Shan-Qin2,3; Dai, Zi-Gao2,3; Wu, Xue-Feng4,5; Wei, Jian-Yan1
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2016-11-01 |
| 卷号 | 831期号:1 |
| 关键词 | stars: neutron supernovae: general supernovae: individual (SN 1997ef, SN 2007ru) |
| 英文摘要 | Broad-lined Type Ic supernovae (SNe Ic-BL) are of great importance because their association with long-duration gamma-ray bursts (LGRBs) holds the key to deciphering the central engine of LGRBs, which refrains from being unveiled despite decades of investigation. Among the two popularly hypothesized types of central engine, i.e., black holes and strongly magnetized neutron stars (magnetars), there is mounting evidence that the central engine of GRB-associated SNe (GRB-SNe) is rapidly rotating magnetars. Theoretical analysis also suggests that magnetars could be the central engine of SNe Ic-BL. What puzzled the researchers is the fact that light-curve modeling indicates that as much as 0.2-0.5 M-circle dot of Ni-56 was synthesized during the explosion of the SNe Ic-BL, which is unfortunately in direct conflict with current state-of-the-art understanding of magnetar-powered Ni-56 synthesis. Here we propose a dynamic model of magnetar-powered SNe to take into account the acceleration of the ejecta by the magnetar, as well as the thermalization of the injected energy. Assuming that the SN kinetic energy comes exclusively from the magnetar acceleration, we find that although a major fraction of the rotational energy of the magnetar is to accelerate the SN ejecta, a tiny fraction of this energy deposited as thermal energy of the ejecta is enough to reduce the needed Ni-56 to 0.06M(circle dot) for both SN 1997ef and SN 2007ru. We therefore suggest that magnetars could power SNe Ic-BL in aspects both of energetics and of Ni-56 synthesis. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | GAMMA-RAY BURSTS ; CORE-COLLAPSE SUPERNOVAE ; BINARY NEUTRON-STARS ; MERGER MILLISECOND MAGNETARS ; GRAVITATIONAL-WAVE BURSTS ; REVERSE SHOCK EMISSION ; COOLED ACCRETION DISKS ; LIGHT CURVES ; X-RAY ; SUPERLUMINOUS SUPERNOVAE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000387229300004 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6861]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Space Astron & Technol, Natl Astron Observ, Beijing 100012, Peoples R China 2.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China 3.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Jiangsu, Peoples R China 4.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 5.Chinese Acad Sci, Joint Ctr Particle Nucl Phys & Cosmol, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Ling-Jun,Han, Yan-Hui,Xu, Dong,et al. SOLVING THE Ni-56 PUZZLE OF MAGNETAR-POWERED BROAD-LINED TYPE IC SUPERNOVAE[J]. ASTROPHYSICAL JOURNAL,2016,831(1). |
| APA | Wang, Ling-Jun.,Han, Yan-Hui.,Xu, Dong.,Wang, Shan-Qin.,Dai, Zi-Gao.,...&Wei, Jian-Yan.(2016).SOLVING THE Ni-56 PUZZLE OF MAGNETAR-POWERED BROAD-LINED TYPE IC SUPERNOVAE.ASTROPHYSICAL JOURNAL,831(1). |
| MLA | Wang, Ling-Jun,et al."SOLVING THE Ni-56 PUZZLE OF MAGNETAR-POWERED BROAD-LINED TYPE IC SUPERNOVAE".ASTROPHYSICAL JOURNAL 831.1(2016). |
入库方式： OAI收割
来源：国家天文台
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