Correlation between pulsar glitch and emission
文献类型：会议论文
| 作者 | Yuan, Jianping ; Kou, Feifei; Wang, Na
|
| 出版日期 | 2019 |
| 会议日期 | JAN 03-07, 2019 |
| 会议地点 | Xiamen, PEOPLES R CHINA |
| 卷号 | 2127 |
| DOI | 10.1063/1.5117794 |
| 国家 | CHINA |
| 英文摘要 | 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. |
| 产权排序 | 1 |
| 会议录 | Xiamen-Custipen Workshop on the the Equation of State (EOS) of Dense Neutron-Rich Matter in the Era of Gravitational Wave Astronomy
 |
| 会议录出版者 | Amer Inst Physics |
| 会议录出版地 | MELVILLE |
| 语种 | 英语 |
| URL标识 | 查看原文 |
| ISSN号 | 0094-243X |
| ISBN号 | 978-0-7354-1869-1 |
| WOS记录号 | WOS:000507575500004 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/3921]  |
| 专题 | 脉冲星研究团组 |
| 通讯作者 | Yuan, Jianping |
| 作者单位 | 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 |
| 推荐引用方式 GB/T 7714 | Yuan, Jianping,Kou, Feifei,Wang, Na. Correlation between pulsar glitch and emission[C]. 见:. Xiamen, PEOPLES R CHINA. JAN 03-07, 2019. |
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来源：新疆天文台
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