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Subpulse drifting of PSR J1514-4834

文献类型：期刊论文

作者Li, Qingying2; Dang, Shijun1,2,6; Shang, Lunhua1,2; Tedila, Habtamu Menberu5; Xu, Xin2; Li, Wei2,3,4; Tian, Jie2; Cai, Yanqing2; Yu, Zhixiang2; Wu, Chenbin2
刊名ASTROPHYSICS AND SPACE SCIENCE
出版日期2024-08-01
卷号369期号:8页码:90
关键词Pulsars Sub-pulse drifting Periodic modulation (PSR J1514-4834)
ISSN号0004-640X
DOI10.1007/s10509-024-04352-0
产权排序5
英文摘要In this paper, we report the detailed observation of the drift subpulse behavior of PSR J1514-4834 at a central frequency of 1369 MHz using the Parkes 64-m radio telescope. We have found that individual pulses of this pulsar exhibit distinct modulation behaviors for different profile components. The leading and middle components display periodic amplitude modulation with a period of P3=37.5 +/- 0.8P\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\mathrm{P}_{3}=37.5\pm 0.8\, \mathrm{P}$\end{document}, and a drifting sub-pulse phenomenon is detected in the phase region of trailing component with the measured drifting periods P2=7.0 +/- 0.4P\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\mathrm{P}_{2}=7.0\pm 0.4\,\mathrm{P}$\end{document} and P3=37.5 +/- 0.8P\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\mathrm{P}_{3}=37.5\pm 0.8\, \mathrm{P}$\end{document}. Additionally, it was observed that the leading and trailing components of the pulsar have a clear correlation, the middle and trailing components have a clear anti-correlation, and there is no apparent correlation between the leading and middle components. Moreover, this pulsar deviates from the range of most amplitude-modulated pulsars in the E-center dot-P3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\dot{\mathrm{E}}-\mathrm{P}_{3}$\end{document} diagram, but it still falls within the category of subpulse drifting. PSR J1514-4834 exhibits periodic emission modulation and sub-pulse drifting simultaneously in different profile components, which is difficult to understand with the traditional carousel model. Our observational results will provide new observation evidence for theoretical studies of single-pulse emission mechanisms in pulsars.
WOS关键词MODULATION PROPERTIES ; PULSAR ; EMISSION ; MODEL
资助项目Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-4] ; Guizhou Province Science and Technology Foundation[ZK[2022]304] ; Scientific Research Project of the Guizhou Provincial Education[KY[2022]132] ; Scientific Research Project of the Guizhou Provincial Education[KY[2022]137] ; Foundation of Education Bureau of Guizhou Province, China[KY(2020)003] ; National Natural Science Foundation[12403046] ; Guizhou Provincial Science and Technology Projects[QKHFQ[2023]003] ; Guizhou Provincial Science and Technology Projects[QKHPTRC-ZDSYS[2023]003] ; Guizhou Provincial Science and Technology Projects[QKHFQ[2024]001-1] ; Parkes radio telescope is part of the Australia Telescope National Facility - Australian Government
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001300044300003
出版者SPRINGER
资助机构Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; Guizhou Province Science and Technology Foundation ; Scientific Research Project of the Guizhou Provincial Education ; Foundation of Education Bureau of Guizhou Province, China ; National Natural Science Foundation ; Guizhou Provincial Science and Technology Projects ; Parkes radio telescope is part of the Australia Telescope National Facility - Australian Government
源URL[http://ir.xao.ac.cn/handle/45760611-7/6959]  
专题脉冲星研究团组
通讯作者Dang, Shijun
作者单位1.Guizhou Normal Univ, Guizhou Prov Key Lab Radio Astron & Data Proc, Guiyang 550025, Peoples R China
2.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550025, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
5.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
6.Guizhou Univ, Guizhou Radio Astron Observ, Guiyang 550001, Peoples R China
推荐引用方式
GB/T 7714		 Li, Qingying,Dang, Shijun,Shang, Lunhua,et al. Subpulse drifting of PSR J1514-4834[J]. ASTROPHYSICS AND SPACE SCIENCE,2024,369(8):90.
APA Li, Qingying.,Dang, Shijun.,Shang, Lunhua.,Tedila, Habtamu Menberu.,Xu, Xin.,...&Wu, Chenbin.(2024).Subpulse drifting of PSR J1514-4834.ASTROPHYSICS AND SPACE SCIENCE,369(8),90.
MLA Li, Qingying,et al."Subpulse drifting of PSR J1514-4834".ASTROPHYSICS AND SPACE SCIENCE 369.8(2024):90.

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