The formation of subdwarf B stars
文献类型：会议论文
| 作者 | Han ZW(韩占文); Podsiadlowski, P; Maxted, PFL; Marsh, TR; Ivanova, N; Han ZW(韩占文)
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| 出版日期 | 2002 |
| 会议名称 | 187 Colloquium on Exotic Stars as Challenges to Evolution |
| 会议日期 | 2002-03-04 |
| 会议地点 | MIAMI, FL |
| 卷号 | 279 |
| 页码 | 285-290 |
| 通讯作者 | Han, ZW (reprint author), CAS, NAOC, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | We performed full binary evolution calculations and carried out binary population synthesis studies in order to investigate the formation of subdwarf B (sdB) stars via, the channels of stable Roche lobe overflow (RLOF), common envelope ejection and helium white dwarf mergers. Our model is successful in the explanation of observational properties of sdB stars, e.g. we explained the orbital period - minimum companion mass (log P - M-comp) diagram, the effective temperature - surface gravity (T-eff - log g) diagram, the orbital period distribution, the log(gtheta(4)) (theta = 5040/T-eff) distribution, the mass function distribution, the binary. fraction of sdB stars, the fraction of sdB binaries with WD companions, the birth rates, the space number densities, etc. We conclude that (a) the first RLOF needs to be more stabilized than commonly assumed, (b) the first stable RLOF is not conservative, (c) common envelope ejection is very efficient. |
| 收录类别 | CPCI |
| 产权排序 | 第一完成单位 |
| 会议网址 | http://adsabs.harvard.edu/abs/2002ASPC..279..285H |
| 会议录 | ASTRONOMICAL SOCIETY OF THE PACIFIC (ASP) CONFERENCE SERIES - EXOTIC STARS AS CHALLENGES TO EVOLUTION, PROCEEDINGS
 |
| 会议录出版者 | ASTRONOMICAL SOC PACIFIC |
| 学科主题 | Astronomy & Astrophysics |
| 会议录出版地 | 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA |
| 语种 | 英语 |
| ISBN号 | 1-58381-122-2 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/221]  |
| 专题 | 云南天文台_大样本恒星演化研究组 |
| 推荐引用方式 GB/T 7714 | Han ZW,Podsiadlowski, P,Maxted, PFL,et al. The formation of subdwarf B stars[C]. 见:187 Colloquium on Exotic Stars as Challenges to Evolution. MIAMI, FL. 2002-03-04.http://adsabs.harvard.edu/abs/2002ASPC..279..285H. |
入库方式： OAI收割
来源：云南天文台
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