Limits on the strength of individual gravitational wave sources using high-cadence observations of PSR B1937+21
文献类型：期刊论文
| 作者 | Yi, Shuxu1,2; Stappers, Benjamin W.3; Sanidas, Sotirios A.3; Bassa, Cees G.3,4; Janssen, Gemma H.3,4; Lyne, Andrew G.3; Kramer, Michael5; Zhang, Shuang-Nan1,6,7 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2014-12-01 |
| 卷号 | 445期号:2页码:1245-1252 |
| 关键词 | pulsars: Individual: B1937+21 gravitational waves |
| 英文摘要 | We present the results of a search for gravitational waves (GWs) from individual sources using high-cadence observations of PSR B1937+21. The data were acquired from an intensive observation campaign with the Lovell telescope at Jodrell Bank, between 2011 June and 2013 May. The almost daily cadence achieved allowed us to be sensitive to GWs with frequencies up to 4.98 x 10(-6) Hz, extending the upper bound of the typical frequency range probed by pulsar timing arrays. We used observations taken at three different radio frequencies with the Westerbork Synthesis Radio Telescope in order to correct for dispersion measure effects and scattering variances. The corrected timing residuals exhibited an unmodelled periodic noise with an amplitude of 150 ns and a frequency of 3.4 yr(-1). As the signal is not present in the entire data set, we attributed it to the rotational behaviour of the pulsar, ruling out the possibilities of being either due to a GW or an asteroid as the cause. After removing this noise component, we placed limits on the GW strain of individual sources equalling to h(s) = 1.53 x 10(-11) and hs = 4.99 x 10(-14) at 10(-7) Hz for random and optimal sources locations, respectively. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000346959400014 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6483]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Manchester, Ctr Astrophys, Jodrell Bank, Manchester M13 9PL, Lancs, England 4.ASTRON, NL-7990 AA Dwingeloo, Netherlands 5.Max Planck Inst Radioastron, D-53121 Bonn, Germany 6.Chinese Acad Sci, Natl Astron Observ China, Space Sci Div, Beijing 100012, Peoples R China 7.Univ Alabama, Dept Phys, Huntsville, AL 35899 USA |
| 推荐引用方式 GB/T 7714 | Yi, Shuxu,Stappers, Benjamin W.,Sanidas, Sotirios A.,et al. Limits on the strength of individual gravitational wave sources using high-cadence observations of PSR B1937+21[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2014,445(2):1245-1252. |
| APA | Yi, Shuxu.,Stappers, Benjamin W..,Sanidas, Sotirios A..,Bassa, Cees G..,Janssen, Gemma H..,...&Zhang, Shuang-Nan.(2014).Limits on the strength of individual gravitational wave sources using high-cadence observations of PSR B1937+21.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,445(2),1245-1252. |
| MLA | Yi, Shuxu,et al."Limits on the strength of individual gravitational wave sources using high-cadence observations of PSR B1937+21".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 445.2(2014):1245-1252. |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。