ON THE NATURE OF THE PROGENITOR OF THE Type Ia SN2011fe IN M101
文献类型：期刊论文
| 作者 | Liu, Jifeng1,2 ; Di Stefano, Rosanne2; Wang, Tao2,3; Moe, Maxwell2
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2012-04-01 |
| 卷号 | 749期号:2 |
| 关键词 | binaries: close supernovae: general X-rays: binaries |
| 英文摘要 | The explosion of a Type Ia supernova, SN2011fe, in the nearby Pinwheel galaxy (M101 at 6.4Mpc) provides an opportunity to study pre-explosion images and search for the progenitor, which should consist of a white dwarf (WD), possibly surrounded by an accretion disk, in orbit with another star. We report on our use of deep Chandra observations and Hubble Space Telescope observations to limit the luminosity and temperature of the pre-explosion WD. It is found that if the spectrum was a blackbody, then pre-SNWDs with steady nuclear burning of the highest possible temperatures and luminosities are excluded assuming moderate n(H) values, but values of kT between roughly 10 eV and 60 eV are permitted even if the WD was emitting at the Eddington luminosity. This allows the progenitor to be an accreting nuclear-burning WD with an expanded photosphere 4-100 times the WD itself, or a super-critically accreting WD blowing off an optically thick strong wind, or possibly a recurrent nova with luminosities an order of magnitude lower than Eddington. The observations are also consistent with a double degenerate scenario, or a spinning down WD that has been spun up by accretion from the donor. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000302785700045 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6155]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Natl Astron Observ China, Beijing 100012, Peoples R China 2.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA 3.Nanjing Univ, Dept Astron, Nanjing, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jifeng,Di Stefano, Rosanne,Wang, Tao,et al. ON THE NATURE OF THE PROGENITOR OF THE Type Ia SN2011fe IN M101[J]. ASTROPHYSICAL JOURNAL,2012,749(2). |
| APA | Liu, Jifeng,Di Stefano, Rosanne,Wang, Tao,&Moe, Maxwell.(2012).ON THE NATURE OF THE PROGENITOR OF THE Type Ia SN2011fe IN M101.ASTROPHYSICAL JOURNAL,749(2). |
| MLA | Liu, Jifeng,et al."ON THE NATURE OF THE PROGENITOR OF THE Type Ia SN2011fe IN M101".ASTROPHYSICAL JOURNAL 749.2(2012). |
入库方式： OAI收割
来源：国家天文台
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