| Contribution of close double white dwarfs to the Galactic gravitational wave foreground | |
Liu JZ(刘进忠)1,2,3 ; Zhang Y(张余)1,2,3; Han ZW(韩占文)1,3; Zhang FH(张奉辉)1,3; Liu, JZ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
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| 发表期刊 | ASTROPHYSICS AND SPACE SCIENCE
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| 2010-10 | |
| 卷号 | 329期号:1-2页码:297-303 |
| DOI | 10.1007/s10509-010-0294-1 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 关键词 | Gravitational Waves: Binary Close: Galaxy Stellar Content |
| 摘要 | This paper provides new detailed specifics and characteristics of the close double white dwarfs (CDWDs) LISA foreground noise floor using the newest information on the astrophysics with binary population algorithms, which were judged to satisfy the observations. We use the binary population synthesis approach of CDWDs in combination with the latest findings of synthesis models from Han (Mon. Not. R. Astron. Soc. 296:1019, 1998), here, specifically formation by the three evolutionary channels of (a) stable Roche lobe overflow plus common envelope (RLOF + CE), (b) CE plus CE, (c) exposed core plus CE. We collect resulting CDWDs in the frequency range of 10(-8) Hz to 10(-2) Hz and compare strength and number statistics per resolvable frequency bin to derive the properties of the noise floor and the nature of possible outliers that may become individually resolvable. We find resolvable outliers to be solely produced by CE + CE evolution; the other two channels contribute only to the unresolvable foreground noise. Within the CE + CE evolution a detailed look into the chemical buildup of the stars reveals dominantly double helium (He + He) WDs or carbon-oxygen CO + He WDs. |
| 项目资助者 | Natural Science Foundation of China [10821061, 2007CB815406, 10773026] ; Chinese Academy of Sciences [KJCX2-YW-T24] |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0004-640X |
| URL | 查看原文 |
| 归档日期 | 2010-10-12 |
| WOS记录号 | WOS:000282823200049 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | PERIOD DOUBLE-DEGENERATE ; SPY PROJECT ; BINARY STARS ; MASS ; SUPERNOVAE ; EVOLUTION ; RADIATION ; PROGENITORS ; DISCOVERY ; IA |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/4494 |
| 专题 | 大样本恒星演化研究组 中国科学院天体结构与演化重点实验室 |
| 通讯作者 | Liu, JZ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China. |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, 650011, P.R. China 2.Graduate University of Chinese Academy of Sciences, Beijing, 100039, China 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650011, P.R. China |
| 第一作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Liu JZ,Zhang Y,Han ZW,et al. Contribution of close double white dwarfs to the Galactic gravitational wave foreground[J]. ASTROPHYSICS AND SPACE SCIENCE,2010,329(1-2):297-303. |
| APA | Liu JZ,Zhang Y,Han ZW,Zhang FH,&Liu, JZ .(2010).Contribution of close double white dwarfs to the Galactic gravitational wave foreground.ASTROPHYSICS AND SPACE SCIENCE,329(1-2),297-303. |
| MLA | Liu JZ,et al."Contribution of close double white dwarfs to the Galactic gravitational wave foreground".ASTROPHYSICS AND SPACE SCIENCE 329.1-2(2010):297-303. |
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| Contribution of clos（366KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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