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Detection and localization of single-source gravitational waves with pulsar timing arrays
文献类型：期刊论文
| 作者 | Zhu, X. -J.1,2; Wen, L.1; Hobbs, G.2; Zhang, Y.1,3,4 ; Wang, Y.5; Madison, D. R.6,7; Manchester, R. N.2; Kerr, M.2; Rosado, P. A.8; Wang, J. -B.9
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2015-05-11 |
| 卷号 | 449期号:2页码:1650-1663 |
| 关键词 | gravitational waves methods: data analysis pulsars: general |
| 通讯作者 | Zhu, X. -J. |
| 英文摘要 | Pulsar timing arrays (PTAs) can be used to search for very low frequency (10(-9)-10(-7) Hz) gravitational waves (GWs). In this paper, we present a general method for the detection and localization of single-source GWs using PTAs. We demonstrate the effectiveness of this new method for three types of signals: monochromatic waves as expected from individual supermassive binary black holes in circular orbits, GWs from eccentric binaries and GW bursts. We also test its implementation in realistic data sets that include effects such as uneven sampling and heterogeneous data spans and measurement precision. It is shown that our method, which works in the frequency domain, performs as well as published time-domain methods. In particular, we find it equivalent to the F-e-statistic for monochromatic waves. We also discuss the construction of null streams - data streams that have null response to GWs, and the prospect of using null streams as a consistency check in the case of detected GW signals. Finally, we present sensitivities to individual supermassive binary black holes in eccentric orbits. We find that a monochromatic search that is designed for circular binaries can efficiently detect eccentric binaries with both high and low eccentricities, while a harmonic summing technique provides greater sensitivities only for binaries with moderate eccentricities. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | COSMIC STRINGS ; LIMITS ; BURSTS ; MEMORY ; RADIATION ; ASTROPHYSICS ; SENSITIVITY ; PROSPECTS ; PACKAGE ; SYSTEMS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000355337500039 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/865]  |
| 专题 | 脉冲星研究团组 新疆天文台_射电天文研究室 |
| 作者单位 | 1.Univ Western Australia, Sch Phys, Crawley, WA 6009, Australia 2.CSIRO Astron & Space Sci, Epping, NSW 1710, Australia 3.Univ Sci & Technol China, Dept Stat, Hefei 230026, Peoples R China 4.Univ Wisconsin, Dept Stat, Madison, WI 53706 USA 5.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Hubei, Peoples R China 6.Cornell Univ, Dept Astron, Ithaca, NY 14850 USA 7.Cornell Univ, Ctr Radiophys & Space Res, Ithaca, NY 14850 USA 8.Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia 9.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, X. -J.,Wen, L.,Hobbs, G.,et al. Detection and localization of single-source gravitational waves with pulsar timing arrays[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2015,449(2):1650-1663. |
| APA | Zhu, X. -J..,Wen, L..,Hobbs, G..,Zhang, Y..,Wang, Y..,...&Wang, J. -B..(2015).Detection and localization of single-source gravitational waves with pulsar timing arrays.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,449(2),1650-1663. |
| MLA | Zhu, X. -J.,et al."Detection and localization of single-source gravitational waves with pulsar timing arrays".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 449.2(2015):1650-1663. |
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来源：新疆天文台
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