Search for stochastic gravitational-wave background from massive gravity in the NANOGrav 12.5-year dataset
文献类型：期刊论文
| 作者 | Wu, Yu-Mei; Chen, Zu-Cheng; Huang, Qing-Guo
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2023 |
| 卷号 | 107期号:4页码:42003 |
| ISSN号 | 2470-0010 |
| 关键词 | PULSAR TIMING ARRAY GENERAL-RELATIVITY MODEL PACKAGE TEMPO2 LIMITS TESTS |
| DOI | 10.1103/PhysRevD.107.042003 |
| 英文摘要 | Gravitational waves offer a new window to probe the nature of gravity, including answering if the mediating particle, graviton, has a nonzero mass or not. Pulsar timing arrays measure stochastic gravitational wave background (SGWB) at similar to 1-100 nanohertz. Recently, the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) collaboration reported an uncorrelated common -spectrum process in their 12.5-year dataset with no substantial evidence that the process comes from the SGWB predicted by general relativity. In this work, we explore the possibility of an SGWB from massive gravity in the dataset and find that a massless graviton is preferred because of the relatively larger Bayes factor. Without statistically significant evidence for dispersion-related correlations predicted by massive gravity, we place upper limits on the amplitude of the SGWB for graviton mass smaller than 10-23 eV as AMG < 3.21 x 10-15 at 95% confidence level. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/28072]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.[Wu, Yu-Mei 2.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 5.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 6.Beijing Normal Univ, Adv Inst Nat Sci, Zhuhai 519087, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Yu-Mei,Chen, Zu-Cheng,Huang, Qing-Guo. Search for stochastic gravitational-wave background from massive gravity in the NANOGrav 12.5-year dataset[J]. PHYSICAL REVIEW D,2023,107(4):42003. |
| APA | Wu, Yu-Mei,Chen, Zu-Cheng,&Huang, Qing-Guo.(2023).Search for stochastic gravitational-wave background from massive gravity in the NANOGrav 12.5-year dataset.PHYSICAL REVIEW D,107(4),42003. |
| MLA | Wu, Yu-Mei,et al."Search for stochastic gravitational-wave background from massive gravity in the NANOGrav 12.5-year dataset".PHYSICAL REVIEW D 107.4(2023):42003. |
入库方式： OAI收割
来源：理论物理研究所
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