Birthrates and delay times of Type Ia supernovae
文献类型：期刊论文
| 作者 | Wang B(王博)1,2,3 ; Liu ZW(柳正伟)1,2,3; Han YK(韩云坤)1,2,3; Lei ZX(雷振新)1,2,3; Luo YP(罗杨平)1,2,3; Han ZW(韩占文)1,2
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| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
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| 出版日期 | 2010-03 |
| 卷号 | 53期号:3页码:586-590 |
| ISSN号 | 1674-7348 |
| 关键词 | binaries: close stars: evolution supernovae: general white dwarfs |
| 通讯作者 | Wang, B (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China. |
| 产权排序 | 第一完成单位 |
| 英文摘要 | Type Ia supernovae (SNe Ia) play an important role in diverse areas of astrophysics, from the chemical evolution of galaxies to observational cosmology. However, the nature of the progenitors of SNe Ia is still unclear. In this paper, according to a detailed binary population synthesis study, we obtained SN Ia birthrates and delay times from different progenitor models, and compared them with observations. We find that the Galactic SN Ia birthrate from the double-degenerate (DD) model is close to those inferred from observations, while the birthrate from the single-degenerate (SD) model accounts for only about 1/2-2/3 of the observations. If a single starburst is assumed, the distribution of the delay times of SNe Ia from the SD model is a weak bimodality, where the WD + He channel contributes to the SNe Ia with delay times shorter than 100 Myr, and the WD + MS and WD + RG channels to those with age longer than 1Gyr. |
| 学科主题 | Physics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | SINGLE-DEGENERATE CHANNEL ; CORONAE BOREALIS ; PROGENITORS ; BINARIES ; STARS ; EVOLUTION ; MASS ; POPULATIONS ; CLUSTERS ; DWARF |
| 收录类别 | SCI ; EI |
| 原文出处 | http://arxiv.org/abs/1002.4229 |
| 语种 | 英语 |
| WOS记录号 | WOS:000276661700036 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4506]  |
| 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.National Astronomical Observatories/Yunnan Observatory, 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.Graduate University of Chinese Academy of Sciences, Beijing, 100049, China |
| 推荐引用方式 GB/T 7714 | Wang B,Liu ZW,Han YK,et al. Birthrates and delay times of Type Ia supernovae[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2010,53(3):586-590. |
| APA | Wang B,Liu ZW,Han YK,Lei ZX,Luo YP,&Han ZW.(2010).Birthrates and delay times of Type Ia supernovae.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,53(3),586-590. |
| MLA | Wang B,et al."Birthrates and delay times of Type Ia supernovae".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 53.3(2010):586-590. |
入库方式： OAI收割
来源：云南天文台
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