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Determining gravitational wave radiation from close galaxy pairs using a binary population synthesis approach
Liu, J1; Zhang YW(张杨威)2,3; Zhang, H1; Sun YT(孙玉涛)2; Wang, N1; Liu, J (reprint author), Chinese Acad Sci, Xinjiang Observ, Natl Astron Observ, 150 Sci 1 St Urumqi, Xinjiang 830011, Peoples R China.
发表期刊ASTRONOMY & ASTROPHYSICS
2012-04
卷号540
DOI10.1051/0004-6361/201117501
产权排序第2完成单位
收录类别SCI
关键词Binaries: General Black Hole Physics Stars: Evolution Gravitational Waves
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.
项目资助者light in China's Western Region (LCWR) [XBBS201022] ; Natural Science Foundation [11103054] ; Xinjiang Natural Science Foundation [2011211A104] ; John Templeton Foundation
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6361
URL查看原文
WOS记录号WOS:000303315400081
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]BLACK-HOLE BINARIES ; DOUBLE WHITE-DWARFS ; PULSAR TIMING ARRAYS ; DIGITAL SKY SURVEY ; MODEL ; MASS ; EVOLUTION ; OBJECTS ; BURSTS ; NUCLEI
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5422
专题丽江天文观测站(南方基地)
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.
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
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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,&Liu, J .(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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