Pulsar timing residual induced by wideband ultralight dark matter with spin 0,1,2
文献类型：期刊论文
| 作者 | Sun, Sichun1; Yang, Xing -Yu; Zhang, Yun-Long |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2022 |
| 卷号 | 106期号:6页码:66006 |
| ISSN号 | 2470-0010 |
| 关键词 | DATA SET SEARCH GRAVITATIONAL-WAVES CONSTRAINTS LIMITS |
| DOI | 10.1103/PhysRevD.106.066006 |
| 英文摘要 | The coherent oscillation of ultralight dark matter in the mass regime around 10-23 eV induces changes in gravitational potential with the frequency in the nanohertz range. This effect is known to produce a monochromatic signal in the pulsar timing residuals. Here we discuss a multifield scenario that produces a wide spectrum of frequencies, such that the ultralight particle oscillation can mimic the pulsar timing signal of stochastic common spectrum process. We discuss how ultralight dark matter with various spins produces such a wide band spectrum on pulsar timing residuals and perform the Bayesian analysis to constrain the parameters. It turns out that the stochastic background detected by NANOGrav can be associated with a wideband ultralight dark matter. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27835]  |
| 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.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 2.Beijing Inst Technol, Sch Phys, Beijing 100081, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 5.Univ Chinese Acad Sci, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 6.Int Ctr Theoret Phys Asia Pacific, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Sichun,Yang, Xing -Yu,Zhang, Yun-Long. Pulsar timing residual induced by wideband ultralight dark matter with spin 0,1,2[J]. PHYSICAL REVIEW D,2022,106(6):66006. |
| APA | Sun, Sichun,Yang, Xing -Yu,&Zhang, Yun-Long.(2022).Pulsar timing residual induced by wideband ultralight dark matter with spin 0,1,2.PHYSICAL REVIEW D,106(6),66006. |
| MLA | Sun, Sichun,et al."Pulsar timing residual induced by wideband ultralight dark matter with spin 0,1,2".PHYSICAL REVIEW D 106.6(2022):66006. |
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来源：理论物理研究所
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