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 SX(易疏序) ; Yi, SX; Stappers, BW; Sanidas, SA; Bassa, CG; Janssen, GH; Lyne, AG; Kramer, M; Zhang, SN; Zhang SN(张双南)
|
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2014 |
| 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. |
| 学科主题 | Astronomy & Astrophysics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000346959400014 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/225193]  |
| 专题 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Yi SX,Yi, SX,Stappers, BW,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 | 易疏序.,Yi, SX.,Stappers, BW.,Sanidas, SA.,Bassa, CG.,...&张双南.(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 | 易疏序,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：高能物理研究所
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。