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CONSTRAINING TYPE Ia SUPERNOVA MODELS: SN 2011fe AS A TEST CASE
文献类型：期刊论文
| 作者 | Roepke, F. K.1,2; Kromer, M.2; Seitenzahl, I. R.1,2; Pakmor, R.3; Sim, S. A.4; Taubenberger, S.2; Ciaraldi-Schoolmann, F.2; Hillebrandt, W.2; Aldering, G.5; Antilogus, P.6 |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2012-05-01 |
| 卷号 | 750期号:1 |
| 关键词 | hydrodynamics nuclear reactions, nucleosynthesis abundances supernovae: general supernovae: individual (SN 2011fe) |
| 英文摘要 | The nearby supernova SN 2011fe can be observed in unprecedented detail. Therefore, it is an important test case for Type Ia supernova (SN Ia) models, which may bring us closer to understanding the physical nature of these objects. Here, we explore how available and expected future observations of SN 2011fe can be used to constrain SN Ia explosion scenarios. We base our discussion on three-dimensional simulations of a delayed detonation in a Chandrasekhar-mass white dwarf and of a violent merger of two white dwarfs (WDs)-realizations of explosion models appropriate for two of the most widely discussed progenitor channels that may give rise to SNe Ia. Although both models have their shortcomings in reproducing details of the early and near-maximum spectra of SN 2011fe obtained by the Nearby Supernova Factory (SNfactory), the overall match with the observations is reasonable. The level of agreement is slightly better for the merger, in particular around maximum, but a clear preference for one model over the other is still not justified. Observations at late epochs, however, hold promise for discriminating the explosion scenarios in a straightforward way, as a nucleosynthesis effect leads to differences in the Co-55 production. SN 2011fe is close enough to be followed sufficiently long to study this effect. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000303039700019 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6067]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Univ Wurzburg, Inst Theoret Phys & Astrophys, D-97074 Wurzburg, Germany 2.Max Planck Inst Astrophys, D-85741 Garching, Germany 3.Heidelberger Inst Theoret Studien, D-69118 Heidelberg, Germany 4.Australian Natl Univ, Res Sch Astron & Astrophys, Mt Stromlo Observ, Weston, ACT 2611, Australia 5.Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Phys, Berkeley, CA 94720 USA 6.Univ Paris 07, Univ Paris 06, Lab Phys Nucl & Hautes Energies, CNRS,IN2P3, F-75252 Paris 05, France 7.Yale Univ, Dept Phys, New Haven, CT 06250 USA 8.Univ Bonn, Phys Inst, D-53115 Bonn, Germany 9.Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA 10.Univ Lyon 1, F-69622 Villeurbanne, France |
| 推荐引用方式 GB/T 7714 | Roepke, F. K.,Kromer, M.,Seitenzahl, I. R.,et al. CONSTRAINING TYPE Ia SUPERNOVA MODELS: SN 2011fe AS A TEST CASE[J]. ASTROPHYSICAL JOURNAL LETTERS,2012,750(1). |
| APA | Roepke, F. K..,Kromer, M..,Seitenzahl, I. R..,Pakmor, R..,Sim, S. A..,...&Wu, C..(2012).CONSTRAINING TYPE Ia SUPERNOVA MODELS: SN 2011fe AS A TEST CASE.ASTROPHYSICAL JOURNAL LETTERS,750(1). |
| MLA | Roepke, F. K.,et al."CONSTRAINING TYPE Ia SUPERNOVA MODELS: SN 2011fe AS A TEST CASE".ASTROPHYSICAL JOURNAL LETTERS 750.1(2012). |
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来源：国家天文台
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