A SUPER-EDDINGTON WIND SCENARIO FOR THE PROGENITORS OF TYPE Ia SUPERNOVAE
文献类型：期刊论文
| 作者 | Ma X(马鑫)1,2,3 ; Chen XF(陈雪飞)1,2; Chen HL(陈海亮)1,2,3; Denissenkov, PA4,5; Han ZW(韩占文)1,2
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
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| 出版日期 | 2013-12-01 |
| 卷号 | 778期号:2 |
| ISSN号 | 2041-8205 |
| 关键词 | accretion, accretion disks novae, cataclysmic variables stars: evolution supernovae: general white dwarfs |
| 通讯作者 | Ma, X (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China. |
| 产权排序 | 第一完成单位 |
| 英文摘要 | The accretion of hydrogen-rich material on to carbon-oxygen white dwarfs (CO WDs) is crucial for understanding Type Ia supernova (SN Ia) from the single-degenerate model, but this process has not been well understood due to the numerical difficulties in treating H and He flashes during the accretion. For CO WD masses from 0.5 to 1.378 M-circle dot and accretion rates in the range from 10(-8) to 10(-5) M-circle dot yr(-1), we simulated the accretion of solar-composition material on to CO WDs using the state-of-the-art stellar evolution code of MESA. For comparison with steady-state models, we first ignored the contribution from nuclear burning to the luminosity when determining the Eddington accretion rate, and found that the properties of H burning in our accreting CO WD models are similar to those from the steady-state models, except that the critical accretion rates at which the WDs turn into red giants or H-shell flashes occur on their surfaces are slightly higher than those from the steady-state models. However, the super-Eddington wind is triggered at much lower accretion rates than previously thought, when the contribution of nuclear burning to the total luminosity is included. This super-Eddington wind naturally prevents the CO WDs with high accretion rates from becoming red giants, thus presenting an alternative to the optically thick wind proposed by Hachisu et al. Furthermore, the super-Eddington wind works in low-metallicity environments, which may explain SNe Ia observed at high redshifts. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ACCRETING WHITE-DWARFS ; SINGLE-DEGENERATE CHANNEL ; STELLAR ASTROPHYSICS MESA ; CLASSICAL NOVA ; DELAY TIMES ; EVOLUTION ; MODELS ; STARS ; APPROXIMATION ; BINARIES |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/2041-8205/778/2/L32/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000327428400010 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4545]  |
| 专题 | 云南天文台_大样本恒星演化研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China 3.University of the Chinese Academy of Science, Beijing 100049, China 4.Department of Physics and Astronomy, University of Victoria, P.O. Box 3055, Victoria, BC V8W 3P6, Canada 5.The Joint Institute for Nuclear Astrophysics, Notre Dame, IN 46556, USA |
| 推荐引用方式 GB/T 7714 | Ma X,Chen XF,Chen HL,et al. A SUPER-EDDINGTON WIND SCENARIO FOR THE PROGENITORS OF TYPE Ia SUPERNOVAE[J]. ASTROPHYSICAL JOURNAL LETTERS,2013,778(2). |
| APA | Ma X,Chen XF,Chen HL,Denissenkov, PA,&Han ZW.(2013).A SUPER-EDDINGTON WIND SCENARIO FOR THE PROGENITORS OF TYPE Ia SUPERNOVAE.ASTROPHYSICAL JOURNAL LETTERS,778(2). |
| MLA | Ma X,et al."A SUPER-EDDINGTON WIND SCENARIO FOR THE PROGENITORS OF TYPE Ia SUPERNOVAE".ASTROPHYSICAL JOURNAL LETTERS 778.2(2013). |
入库方式： OAI收割
来源：云南天文台
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