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Gravitational Wave Foreground Radiation from Neutron Star-White Dwarf Binaries
文献类型：会议论文
| 作者 | Liu, Jinzhong ; Zhang, Yu; Zhang, Hailong
|
| 出版日期 | 2012 |
| 会议名称 | 9th Pacific Rim Conference on Stellar Astrophysics |
| 会议日期 | APR 14-20, 2011 |
| 会议地点 | Lijiang, PEOPLES R CHINA |
| 关键词 | X-RAY BINARIES LOW-MASS EVOLUTION POPULATIONS |
| 页码 | 57-62 |
| 通讯作者 | liujinzh@uao.ac.cn |
| 英文摘要 | We investigate the stochastic foreground of gravitational waves (GWs) from ultra-compact neutron star-white dwarf (NS-WD) binaries in our Galaxy or at cosmological space. Observationally, accreting neutron stars and donor white dwarf stars form the low-mass X-ray binaries (LMXBs). Based on the luminosity function determined from X-ray observations, we study the production of NS-WDs using a binary population synthesis approach, and calculate their contribution to the Galactic GW foreground radiation. From a sample of 10(7) binaries, we calculate the evolutionary processes of these NS-WD systems between 10(-5) and 10(-2) Hz, which may be detected by the Laser Interferometer Space Antenna (LISA). We conclude that NS-WD binaries due to below the delectability level of the LISA cannot dominate the Galactic GW foreground radiation. This is because that the GW signal of NS-WD systems will be burred by that of close double white dwarf systems. We argue that several Galactic NS-WD binaries may be resolved by LISA due to the short orbital period. Meanwhile, the extragalactic foreground is unlikely to be detected. |
| 收录类别 | ISTP |
| 会议主办者 | Chinese Academy of Sciences (CAS);Chinese Natural Science Foundation (CNSF);Yunnan Astronomical Observatory, Chinese Academy of Sciences (YNAO);International Astronomical Union (IAU);Lijiang Teachers College (LTC) |
| 会议网址 | http://prcsa.ynao.ac.cn/ |
| 会议录 | 9th Pacific Rim Conference on Stellar Astrophysics, ASP Conference Series, Vol. 451
 |
| 会议录出版者 | Astronomical Society of the Pacific |
| 学科主题 | 恒星和恒星物理 |
| 会议录出版地 | SAN FRANCISCO, CA 94112 USA |
| 语种 | 英语 |
| ISBN号 | 978-1-58381-784-1 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/391]  |
| 专题 | 新疆天文台_光学天文与技术应用研究室 新疆天文台_计算机技术室 |
| 推荐引用方式 GB/T 7714 | Liu, Jinzhong,Zhang, Yu,Zhang, Hailong. Gravitational Wave Foreground Radiation from Neutron Star-White Dwarf Binaries[C]. 见:9th Pacific Rim Conference on Stellar Astrophysics. Lijiang, PEOPLES R CHINA. APR 14-20, 2011.http://prcsa.ynao.ac.cn/. |
入库方式： OAI收割
来源：新疆天文台
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