NAOC Open IR
Pulse Profile Variations Associated with the Glitch of PSR B2021+51
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
2021-05-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume912Issue:1Pages:11
AbstractWe 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.
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shanghai ; Natural Science Foundation of Shanghai ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shanghai ; Natural Science Foundation of Shanghai ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shanghai ; Natural Science Foundation of Shanghai ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shanghai ; Natural Science Foundation of Shanghai ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents
DOI10.3847/1538-4357/abf140
Language英语
Funding ProjectNational 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
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shanghai ; Natural Science Foundation of Shanghai ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shanghai ; Natural Science Foundation of Shanghai ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shanghai ; Natural Science Foundation of Shanghai ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shanghai ; Natural Science Foundation of Shanghai ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000648717200001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/78177
Collection中国科学院国家天文台
Corresponding AuthorWang, Hong-Guang
Affiliation1.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
Recommended Citation
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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