NANOGrav hints on planet-mass primordial black holes
文献类型：期刊论文
| 作者 | Domenech, Guillem; Pi, Shi1,3
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| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2022 |
| 卷号 | 65期号:3页码:230411 |
| 关键词 | GRAVITATIONAL-WAVES CONSTRAINTS SEARCH LIMITS |
| ISSN号 | 1674-7348 |
| DOI | 10.1007/s11433-021-1839-6 |
| 英文摘要 | Recently, the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) claimed the detection of a stochastic common-spectrum process of the pulsar timing array (PTA) time residuals from their 12.5 year data, which might be the first detection of the stochastic background of gravitational waves (GWs). We show that the amplitude and the power index of such waves imply that they could be the secondary GWs induced by the peaked curvature perturbation with a dust-like post inflationary era with -0.091 less than or similar to w less than or similar to 0.048. Such stochastic background of GWs naturally predicts substantial existence of planet-mass primordial black holes (PBHs), which can be the lensing objects for the ultrashort-timescale microlensing events observed by the Optical Gravitational Lensing Experiment (OGLE). |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27803]  |
| 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.INFN Sez Padova, I-35131 Padua, Italy 2.Univ Tokyo, Inst Adv Study, Kavli Inst Phys & Math Univers WPI, Kashiwa, Chiba 2778583, Japan 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Domenech, Guillem,Pi, Shi. NANOGrav hints on planet-mass primordial black holes[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2022,65(3):230411. |
| APA | Domenech, Guillem,&Pi, Shi.(2022).NANOGrav hints on planet-mass primordial black holes.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,65(3),230411. |
| MLA | Domenech, Guillem,et al."NANOGrav hints on planet-mass primordial black holes".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 65.3(2022):230411. |
入库方式： OAI收割
来源：理论物理研究所
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