The gravitational wave signal from close galaxy pairs | |
Liu, Jinzhong; Zhang, Yu | |
2016-02-01 | |
会议日期 | 2016-02-01 |
会议地点 | Beijing, China |
关键词 | Gravitational Wave Black Hole Galaxy |
卷号 | 10 |
期号 | Symposium S312 |
DOI | 10.1017/S1743921315008054 |
页码 | 296-297 |
英文摘要 | The early phase of coalescence of supermassive black hole binaries (SMBHBs) from their host galaxies provides a guaranteed source of low-frequency gravitational wave (GW) radiation by pulsar timing observations. Nowadays, SMBHBs are ubiquitous in the nuclei of galaxies. A latest sample of close galaxy pairs has been released from the Sloan Digital Sky Survey (SDSS) Data. A binary population synthesis (BPS) approach has been applied to study the characteristics of clusters and galaxies. Here we report how BPS, using SDSS results, can be used to determine the GW radiation from SMBHBs. In this study we show numerical results under the assumption that SMBHBs formed through the merger of two galaxies and give the waveform evolution using post-Newtonian approximation methods. Based on the sensitivity of the International Pulsar Timing Array (IPTA) and Square Kilometer Array (SKA) detectors, we show that the value of strain amplitude h can be changed from about 10−14 to 10−15 during the observation of 20 years, which can be considered as a precise evolution. |
项目编号 | XBBS201221 ; 11303080 |
产权排序 | 1 |
会议录 | IAUS 312: Star Clusters and Black Holes in Galaxies across Cosmic Time |
资助机构 | the program of the light in China's Western Region (LCWR)(No. XBBS201221) ; International Astronomical Union ; State Key Lab of Computational Astrophysics, NAOC, CAS ; State Key Laboratory of Theoretical Physics, ITP, CAS ; Thousand Talents Program - Recruitment of Global Experts ; Chile-China Joint Center for Astronomy ; SUGON Company ; the program of the light in China's Western Region (LCWR)(No. XBBS201221) ; International Astronomical Union ; State Key Lab of Computational Astrophysics, NAOC, CAS ; State Key Laboratory of Theoretical Physics, ITP, CAS ; Thousand Talents Program - Recruitment of Global Experts ; Chile-China Joint Center for Astronomy ; SUGON Company ; Natural Science Foundation (No. 11303080) ; Natural Science Foundation (No. 11303080) |
会议录出版者 | Cambridge University Press |
语种 | 英语 |
URL标识 | 查看原文 |
ISSN号 | 1743-9221 |
ISBN号 | 978-1107078727 |
内容类型 | 会议论文 |
源URL | [http://ir.xao.ac.cn/handle/45760611-7/1767] |
专题 | 新疆天文台_光学天文与技术应用研究室 |
通讯作者 | Liu, Jinzhong |
作者单位 | National Astronomical Observatory/Xinjiang Observatory, Chinese Academy of Sciences, 150 Science 1-Street, Urumqi, Xinjiang 830011, China |
推荐引用方式 GB/T 7714 | Liu, Jinzhong,Zhang, Yu. The gravitational wave signal from close galaxy pairs[C]. 见:. Beijing, China. 2016-02-01. |
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