Knowledge Management System of Institute of Theoretical Physics, CAS
Cai, Rong-Gen ; Pi, Shi1; Wang, Shao-Jiang; Yang, Xing-Yu
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| Pulsar timing array constraints on the induced gravitational waves | |
| Source Publication | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
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| Language | 英语 |
| Keyword | PRIMORDIAL BLACK-HOLES INFLATION LIMITS |
| Abstract | If the black holes detected by LIGO/VIRGO are primordial black holes (PBHs) sourcing from a large primordial curvature perturbation on small scales, the corresponding induced gravitational waves (GWs) would peak at nanohertz that is detectable by the current and future observations of pulsar timing array (PTA). In this paper we show that with the mass function estimated from the merger rate of LIGO O1 and O2 events, the induced GWs from such a curvature perturbation with a Gaussian narrow peak at some small scale would be in a seemingly mild tension with current constraints from PTA. However, if the curvature perturbation is of local-type non-Gaussianity with a non-linear parameter f(NL) greater than or similar to O(10), the tension could be relieved. Nevertheless, such an induced GWs must be detectable by the Square Kilometer Array in a decade or less. |
| 2019 | |
| ISSN | 1475-7516 |
| Issue | 10Pages:59 |
| Cooperation Status | 国际 |
| Subject Area | Astronomy & Astrophysics ; Physics |
| MOST Discipline Catalogue | Astronomy & Astrophysics ; Physics, Particles & Fields |
| DOI | 10.1088/1475-7516/2019/10/059 |
| Indexed By | SCIE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/27070 |
| Collection | SCI期刊论文 |
| Affiliation | 1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China 2.Univ Tokyo, Inst Adv Study, Kavli Inst Phys & Math Universe WPI, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778583, Japan 3.Tufts Univ, Tufts Inst Cosmol, Dept Phys & Astron, 574 Boston Ave, Medford, MA 02155 USA 4.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Cai, Rong-Gen,Pi, Shi,Wang, Shao-Jiang,et al. Pulsar timing array constraints on the induced gravitational waves[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2019(10):59. |
| APA | Cai, Rong-Gen,Pi, Shi,Wang, Shao-Jiang,&Yang, Xing-Yu.(2019).Pulsar timing array constraints on the induced gravitational waves.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(10),59. |
| MLA | Cai, Rong-Gen,et al."Pulsar timing array constraints on the induced gravitational waves".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .10(2019):59. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Pulsar timing array （1209KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | Application Full Text | |
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