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Pulse Profile Variations Associated with Two Glitches of PSR B1822-09

文献类型：期刊论文

作者Liu, Jie7,8,9; Wang, Hong-Guang6,7,8,9; Shen, Zhi-Qiang3,4,5; Yan, Zhen3,4,5; Tong, Hao7,8,9; Huang, Zhi-Peng2,4,5; Zhao, Ru-Shuang1
刊名ASTROPHYSICAL JOURNAL
出版日期2022-06-01
卷号931期号:2页码:12
ISSN号0004-637X
DOI10.3847/1538-4357/ac6bf7
通讯作者Wang, Hong-Guang(hgwang@gzhu.edu.cn)
英文摘要We reported two new glitches of PSR B1822-09 that were detected at the Shanghai Tian Ma Radio Telescope. The glitches occurred around MJD 58,025 and 58,474.5, respectively. The shapes of the integrated mean pulse profiles in both the radio-bright (B-mode) and the radio-quiet (Q-mode) modes changed after two glitches. Such changes are probably related to the trigger mechanisms of the glitches. According to the Gaussian fitting to the integrated mean pulse profiles, variations of the integrated mean pulse profiles can be attributed to variations of the Gaussian components. The fitting also indicates that there may be changes in only a part of the Gaussian components after glitches. We proposed an interpretation of the relation between the precursor and the interpulse of PSR B1822-09 according to variations of Gaussian components. We analyzed the cumulative distributions of the glitch sizes and the waiting times of all 14 glitches of PSR B1822-09. The cumulative distribution of the glitch sizes can be fitted well by a power law with an index alpha of 0.985 +/- 0.005. The cumulative distribution of the waiting times follows a Poisson model with a mean waiting time lambda of 466 +/- 66 days. The correlation coefficient between the waiting times and the sizes of the corresponding preceding glitches is 0.906. In contrast, there is no apparent correlation between the waiting times and the sizes of the corresponding trailing glitches.
WOS关键词CRAB PULSAR ; STATE ; EVOLUTION ; ROTATION
资助项目National Natural Science Foundation of China[12133004] ; National SKA Program of China[2020SKA0120101] ; Science and Technology Program of Guangzhou[202102010466] ; 2018 Project of Xinjiang Uygur Autonomous Region of China
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000807764600001
出版者IOP Publishing Ltd
资助机构National Natural Science Foundation of China ; National SKA Program of China ; Science and Technology Program of Guangzhou ; 2018 Project of Xinjiang Uygur Autonomous Region of China
源URL[http://ir.xao.ac.cn/handle/45760611-7/4799]  
专题脉冲星研究团组
通讯作者Wang, Hong-Guang
作者单位1.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China
2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210033, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Shanghai, Peoples R China
6.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
7.Guangdong Higher Educ Inst, Key Lab Astron Observat & Technol, Guangzhou 510006, Peoples R China
8.Natl Astron Data Ctr, Great Bay Area, Guangzhou 510006, Peoples R China
9.Guangzhou Univ, Sch Phys & Mat Sci, Dept Astron, Guangzhou 510006, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Jie,Wang, Hong-Guang,Shen, Zhi-Qiang,et al. Pulse Profile Variations Associated with Two Glitches of PSR B1822-09[J]. ASTROPHYSICAL JOURNAL,2022,931(2):12.
APA Liu, Jie.,Wang, Hong-Guang.,Shen, Zhi-Qiang.,Yan, Zhen.,Tong, Hao.,...&Zhao, Ru-Shuang.(2022).Pulse Profile Variations Associated with Two Glitches of PSR B1822-09.ASTROPHYSICAL JOURNAL,931(2),12.
MLA Liu, Jie,et al."Pulse Profile Variations Associated with Two Glitches of PSR B1822-09".ASTROPHYSICAL JOURNAL 931.2(2022):12.

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来源：新疆天文台

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