Institutional Repository of Radio Astronomy Research Laboratory
| Correlation between pulsar glitch and emission | |
Yuan, Jianping ; Kou, Feifei; Wang, Na
| |
| 2019 | |
| Conference Name | Xiamen-Custipen Workshop on the the Equation of State (EOS) of Dense Neutron-Rich Matter in the Era of Gravitational Wave Astronomy |
| Source Publication | Xiamen-Custipen Workshop on the the Equation of State (EOS) of Dense Neutron-Rich Matter in the Era of Gravitational Wave Astronomy |
| Volume | 2127 |
| Conference Date | JAN 03-07, 2019 |
| Conference Place | Xiamen, PEOPLES R CHINA |
| Country | CHINA |
| Publication Place | MELVILLE |
| Publisher | Amer Inst Physics |
| Contribution Rank | 1 |
| Abstract | Pulsar glitches are sudden increases in the spin frequency, which are believed to be caused by the abrupt transfer of angular momentum from the interior superfluid to the crust of neutron star. These events offer an opportunity of investigating the interior structure of pulsars. Observations with Nanshan Radio telescope show that the observational features of glitches are varied and their post-glitch behaviors show different decay. in addition, twelve glitches in five pulsars are detected to show multi exponential terms in one decay process, implying that fast decay could be missed due to the observation gap. For the latest Vela glitch in 2016, the coupling parameter has a value of 0.08 due to a long waiting time, therefor the core superfluid is probably not involved in this event. There are evidence to support the correlations between pulsar glitch and emission. We detected PSR B2035+36 to undergo a glitch with a frequency increase of Delta nu similar to 12.4(5) nHz around MJD 52950. The post-glitch behavior is unusual, where the spin-down rate increase persistently over 800 d after the glitch. Besides, the pulse profile became narrower and the pulsar began to switch between two emission modes. It indicates that there should be a connection between magnetospheric behavior and glitch activity. |
| DOI | 10.1063/1.5117794 |
| URL | 查看原文 |
| Indexed By | CPCI |
| Language | 英语 |
| ISBN | 978-0-7354-1869-1 |
| ISSN | 0094-243X |
| WOS ID | WOS:000507575500004 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/3921 |
| Collection | 射电天文研究室_脉冲星研究团组 |
| Corresponding Author | Yuan, Jianping |
| Affiliation | 1.Xinjiang Astronomical Observatory, CAS, 150 Science 1-Street, Urumqi, Xinjiang 830011, China; 2.CAS Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China; 3.Xinjiang Key Laboratory of Radio Astrophysics, 150 Science 1-Street, Urumqi, Xinjiang 830011, China; 4.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Nanjing 210008 ,China; 5.Center for Astronomical Mega-Science, Chinese Academy of Sciences (CAMS), Beijing, China |
| Recommended Citation GB/T 7714 | Yuan, Jianping,Kou, Feifei,Wang, Na. Correlation between pulsar glitch and emission[C]. MELVILLE:Amer Inst Physics,2019. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Yuan-2019-Correlatio（118KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Application Full Text | ||
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