Determining gravitational wave radiation from close galaxy pairs using a binary population synthesis approach
文献类型：期刊论文
| 作者 | Liu, J1; Zhang YW(张杨威)2,3 ; Zhang, H1; Sun YT(孙玉涛)2; Wang, N1
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| 刊名 | ASTRONOMY & ASTROPHYSICS
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| 出版日期 | 2012-04 |
| 卷号 | 540 |
| 关键词 | binaries: general black hole physics stars: evolution gravitational waves |
| ISSN号 | 0004-6361 |
| 产权排序 | 第二完成单位 |
| 通讯作者 | Liu, J (reprint author), Chinese Acad Sci, Xinjiang Observ, Natl Astron Observ, 150 Sci 1 St Urumqi, Xinjiang 830011, Peoples R China. |
| 英文摘要 | Context. The early phase of the coalescence of supermassive black hole (SMBH) binaries from their host galaxies provides a guaranteed source of low-frequency (nHz-mu Hz) gravitational wave (GW) radiation by pulsar timing observations. These types of GW sources would survive the coalescing and be potentially identifiable. Aims. We aim to provide an outline of a new method for detecting GW radiation from individual SMBH systems based on the Sloan Digital Sky Survey (SDSS) observational results, which can be verified by future observations. Methods. Combining the sensitivity of the international Pulsar Timing Array (PTA) and the Square Kilometer Array (SKA) detectors, we used a binary population synthesis (BPS) approach to determine GW radiation from close galaxy pairs under the assumption that SMBHs formed at the core of merged galaxies. We also performed second post-Newtonian approximation methods to estimate the variation of the strain amplitude with time. Results. We find that the value of the strain amplitude h varies from about 10(-14) to 10(-17) using the observations of 20 years, and we estimate that about 100 SMBH sources can be detected with the SKA detector. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | BLACK-HOLE BINARIES ; DOUBLE WHITE-DWARFS ; PULSAR TIMING ARRAYS ; DIGITAL SKY SURVEY ; MODEL ; MASS ; EVOLUTION ; OBJECTS ; BURSTS ; NUCLEI |
| 收录类别 | SCI |
| 原文出处 | http://www.aanda.org/articles/aa/abs/2012/04/aa17501-11/aa17501-11.html |
| 语种 | 英语 |
| WOS记录号 | WOS:000303315400081 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5422]  |
| 专题 | 云南天文台_丽江天文观测站（南方基地） |
| 作者单位 | 1.National Astronomical Observatories/Xinjiang Observatory, Chinese Academy of Sciences, 150 Science 1-Street Urumqi, 830011 Xinjiang, PR China 2.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, 650011 Kunming, PR China 3.Graduate University of the Chinese Academy of Sciences, 100049 Beijing, PR China |
| 推荐引用方式 GB/T 7714 | Liu, J,Zhang YW,Zhang, H,et al. Determining gravitational wave radiation from close galaxy pairs using a binary population synthesis approach[J]. ASTRONOMY & ASTROPHYSICS,2012,540. |
| APA | Liu, J,Zhang YW,Zhang, H,Sun YT,&Wang, N.(2012).Determining gravitational wave radiation from close galaxy pairs using a binary population synthesis approach.ASTRONOMY & ASTROPHYSICS,540. |
| MLA | Liu, J,et al."Determining gravitational wave radiation from close galaxy pairs using a binary population synthesis approach".ASTRONOMY & ASTROPHYSICS 540(2012). |
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来源：云南天文台
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