Pulse Profile Variations Associated with the Glitch of PSR B2021+51
文献类型：期刊论文
| 作者 | Liu, Jie1; Wang, Hong-Guang1,2; Yan, Zhen3,4,5; Shen, Zhi-Qiang3,4,5; Tong, Hao1; Huang, Zhi-Peng3,4,6; Zhao, Ru-Shuang7 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 912期号:1页码:11 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/abf140 |
| 通讯作者 | Wang, Hong-Guang(hgwang@gzhu.edu.cn) |
| 英文摘要 | We reported the first glitch of PSR B2021+51 detected with the Shanghai Tian Ma Radio Telescope that occurred around MJD 58289.1 (2018 June 20). The spin frequency and its derivative suffered a jump of about 7.04 x 10(-10) Hz and 2.6 x 10(-18) s(-2), respectively. The pulse width at the 10% intensity level (W (10)) of the mean pulse profile significantly decreased right before the glitch and then increased after the glitch, accompanied by an enhancement in the trailing peak of the normalized profile. The mean pulse profiles were decomposed into three Gaussian components, i.e., C1, C2, and C3 from left to right by peak phase. The width of C3 (w (3)) had an apparent maximum right before the glitch and its weighted mean value became slightly smaller than the pre-glitch value after the glitch, while the weighted mean values of both w (1) and w (2) had no apparent change. The significant decrease of the mean pulse width right before the glitch is mainly due to the movement of C3 toward C1 and C2, while the increase of the mean pulse width after the glitch results from the movement of C2 toward C3. Changes in the widths of mean pulse profiles and in the widths and phase separations of Gaussian components associated with the glitch convinced us of a connection between the changes in characteristics of the pulsar emission zone and the glitch activity. We discuss a possible interpretation invoking the movements of flux tubes in the emission zone. |
| 资助项目 | National Natural Science Foundation of China[11573008] ; National Natural Science Foundation of China[U2031119] ; Natural Science Foundation of Shanghai[20ZR1467600] ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000648717200001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Shanghai ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/3997]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Wang, Hong-Guang |
| 作者单位 | 1.Guangzhou Univ, Sch Phys & Mat Sci, Dept Astron, Guangzhou 510006, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210033, Peoples R China 6.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 7.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jie,Wang, Hong-Guang,Yan, Zhen,et al. Pulse Profile Variations Associated with the Glitch of PSR B2021+51[J]. ASTROPHYSICAL JOURNAL,2021,912(1):11. |
| APA | Liu, Jie.,Wang, Hong-Guang.,Yan, Zhen.,Shen, Zhi-Qiang.,Tong, Hao.,...&Zhao, Ru-Shuang.(2021).Pulse Profile Variations Associated with the Glitch of PSR B2021+51.ASTROPHYSICAL JOURNAL,912(1),11. |
| MLA | Liu, Jie,et al."Pulse Profile Variations Associated with the Glitch of PSR B2021+51".ASTROPHYSICAL JOURNAL 912.1(2021):11. |
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来源：新疆天文台
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