KMS of Xinjiang Astronomical Observatory, CAS
| Pulsar glitch in a strangeon star model - III. The recovery | |
Lai, X. Y.1,2; Wang, W. H.3; Yuan, J. P.4 ; Lu, R. P.5; Yue, H.5; Xu, R. X.6,7
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| 2023-06-08 | |
| Source Publication | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| ISSN | 0035-8711 |
| Volume | 523Issue:3Pages:3967-3973 |
| Contribution Rank | 4 |
| Abstract | Strangeon star model has passed various observational tests, such as the massive pulsars and the tidal deformability during binary mergers. Pulsar glitch, as a useful probe for studying the interior structure of pulsars, has also been studied in strangeon star model in our previous papers, including the recovery coefficient, the waiting time of glitches, and glitch activity. In this paper, the recovery process of a glitch is described in the strangeon star model, based on the starquake picture established before (in Paper I). After the starquake, the inner motion of the stellar matter would reduce the tangential pressure in the cracked places at the equatorial plane. The recovery (increase) of the tangential pressure would be achieved by a viscous flow towards the cracked places at equatorial plane, which leads to the exponential recovery of the spin frequency. A uniform viscous flow can reproduce the single exponential decay observed in some glitches, and the viscous time-scale tau and the depth h of the cracking place below the surface can be fitted by the recovery data. It is found that h increases with glitch size Delta nu/nu, which is expected in the glitch scenario of strangeon stars. The magnitude of the recovery predicted in this recovery model is also consistent with that derived from observations. The single exponential decay reproduced by a uniform viscous flow can be generalized to two or more exponentials by the multicomponent of viscous flows. |
| Keyword | dense matter pulsars: general |
| DOI | 10.1093/mnras/stad1653 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | NEUTRON STARQUAKES ; QUARK ; QUAKES ; MATTER |
| Funding Project | National SKA Program of China[2020SKA0120300] ; National SKA Program of China[2020SKA0120100] ; National Natural Science Foundation of China[U1831104] ; National Natural Science Foundation of China[12041304] ; National Natural Science Foundation of China[42174059] ; Outstanding Young and Middle-aged Science and Technology Innovation Teams from Hubei colleges and universities ; Young Top-notch Talent Cultivation Program of Hubei Province |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001011067600015 |
| Publisher | OXFORD UNIV PRESS |
| Funding Organization | National SKA Program of China ; National Natural Science Foundation of China ; Outstanding Young and Middle-aged Science and Technology Innovation Teams from Hubei colleges and universities ; Young Top-notch Talent Cultivation Program of Hubei Province |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5317 |
| Collection | 中国科学院新疆天文台 |
| Corresponding Author | Lai, X. Y.; Xu, R. X. |
| Affiliation | 1.Hubei Univ Educ, Dept Phys & Astron, Wuhan 430205, Peoples R China 2.Hubei Univ Educ, Res Ctr Astron, Wuhan 430205, Peoples R China 3.Wenzhou Univ, Coll Math & Phys, Wenzhou 325035, Peoples R China 4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 5.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 6.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 7.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China |
| Recommended Citation GB/T 7714 | Lai, X. Y.,Wang, W. H.,Yuan, J. P.,et al. Pulsar glitch in a strangeon star model - III. The recovery[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2023,523(3):3967-3973. |
| APA | Lai, X. Y.,Wang, W. H.,Yuan, J. P.,Lu, R. P.,Yue, H.,&Xu, R. X..(2023).Pulsar glitch in a strangeon star model - III. The recovery.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,523(3),3967-3973. |
| MLA | Lai, X. Y.,et al."Pulsar glitch in a strangeon star model - III. The recovery".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 523.3(2023):3967-3973. |
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| Lai-2023-Pulsar glit（821KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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