中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 新疆天文台
  3. 研究单元未命名
  4. 射电天文研究室
  5. 脉冲星研究团组
Upper Limits on Microhertz Gravitational Waves from Supermassive Black Hole Binaries Using PSR J1909-3744 Data from the Second IPTA Data Release

文献类型：期刊论文

作者Zou, Jing2,3,4; Wang, Jingbo2; Yuan, Jianping1,4; Zhao, De4; Wen, Yirong2,3,4; Li, Wei2,3,4; Wang, Na1,4; Xia, Yong3,4
刊名ASTROPHYSICAL JOURNAL
出版日期2026-03-01
卷号999期号:1页码:12
ISSN号0004-637X
DOI10.3847/1538-4357/ae3c96
通讯作者Wang, Jingbo(1983wangjingbo@163.com)
英文摘要We present the results of a search for gravitational waves (GWs) from individual sources using high-cadence observations of PSR J1909-3744 obtained during an intensive observing campaign with the International Pulsar Timing Array second data release between 2010 July and 2012 November. The observations, conducted at three different radio frequencies with the Nan & ccedil;ay Radio Telescope and Parkes Telescope and five frequencies with the Green Bank Telescope, enabled precise corrections for dispersion measure effects and scattering variations. After these corrections, the timing residuals showed an unmodeled periodic noise component with an amplitude of 340 ns. Our analysis yields upper limits on the GW strain from individual sources, constraining it to be below 1.9 & times; 10-14 at 71 nHz and 2.3 & times; 10-13 at 1 mu Hz for average sky locations, while for optimal source locations, the limits improve to 6.2 & times; 10-15 and 8.9 & times; 10-14 at the same frequencies, respectively. Our new limits are about a factor of 1.52 more stringent than those of B. B. P. Perera et al. (2018) based on an earlier EPTA data.
WOS关键词PULSAR TIMING ARRAY ; SEARCH ; ARRIVAL ; SYSTEMS
资助项目Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-4] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2022D01D85] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2023TSYCTD0013] ; National Key Research and Development Program of China[2022YFC2205203]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001695767500001
出版者IOP Publishing Ltd
资助机构Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; National Key Research and Development Program of China
源URL[http://ir.xao.ac.cn/handle/45760611-7/8596]  
专题脉冲星研究团组
通讯作者Wang, Jingbo
作者单位1.Xinjiang Key Lab Radio Astrophys, Urumqi 830011, Peoples R China
2.Lishui Univ, Inst Optoelect Technol, Lishui 323000, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
推荐引用方式
GB/T 7714		 Zou, Jing,Wang, Jingbo,Yuan, Jianping,et al. Upper Limits on Microhertz Gravitational Waves from Supermassive Black Hole Binaries Using PSR J1909-3744 Data from the Second IPTA Data Release[J]. ASTROPHYSICAL JOURNAL,2026,999(1):12.
APA Zou, Jing.,Wang, Jingbo.,Yuan, Jianping.,Zhao, De.,Wen, Yirong.,...&Xia, Yong.(2026).Upper Limits on Microhertz Gravitational Waves from Supermassive Black Hole Binaries Using PSR J1909-3744 Data from the Second IPTA Data Release.ASTROPHYSICAL JOURNAL,999(1),12.
MLA Zou, Jing,et al."Upper Limits on Microhertz Gravitational Waves from Supermassive Black Hole Binaries Using PSR J1909-3744 Data from the Second IPTA Data Release".ASTROPHYSICAL JOURNAL 999.1(2026):12.

入库方式： OAI收割

来源：新疆天文台

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。