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The Emission Geometry of Pulsars with Interpulses

文献类型：期刊论文

作者Sun, S. N.1,2,3; Wang, N.1,2,3; Yan, W. M.1,2,3; Wang, S. Q.1,2,3,4
刊名ASTROPHYSICAL JOURNAL
出版日期2025-04-20
卷号983期号:2页码:179
ISSN号0004-637X
DOI10.3847/1538-4357/adc254
产权排序1
英文摘要We present polarization profiles of 23 pulsars exhibiting interpulse (IP) emissions using the Five-hundred-meter Aperture Spherical Radio Telescope. By applying the rotating vector model (RVM), we measured the inclination and impact angles for 16 pulsars, allowing us to investigate their beam geometries. Our analysis indicates that for five pulsars, the IP emissions likely originate from the same magnetic pole as the main pulse (MP), whereas for the remaining 11 pulsars, the IP and MP emissions originate from opposite magnetic poles. For the seven pulsars that do not conform to the RVM, we are unable to determine whether the IP emissions originate from the same or opposite magnetic pole as the MPs. By analyzing the beam configurations of pulsars, we found that the emission within the beam is not fully active across both longitude and latitude. Filling factors ranging from 0.27 to 0.99 were obtained for pulsars with opposite pole IP emissions, suggesting an underestimation of emission height when applying the geometrical method. The emissions for MPs and IPs occur at different heights in the pulsar magnetosphere, with the difference in emission height ranging from tens to thousands of kilometers. We also found that some pulsars have wide emission beams, indicating that radio emissions may occur in regions of high altitude within the pulsar magnetosphere.
WOS关键词PHASE-LOCKED MODULATION ; RADIO-EMISSION ; EMPIRICAL-THEORY ; ARRAY PROGRAM ; POLARIZATION FLUCTUATIONS ; ALTITUDE ; MEERKAT ; PROFILE ; MODEL ; POLES
资助项目National Natural Science Foundation of China (NSFC)[12041303] ; National Natural Science Foundation of China (NSFC)[12041304] ; National Natural Science Foundation of China (NSFC)[12403060] ; National Natural Science Foundation of China (NSFC)[12273100] ; National Natural Science Foundation of China (NSFC)[12203092] ; Major Science and Technology Program of Xinjiang Uygur Autonomous ; National Key R&D Program of China[2022YFC2205202] ; National Key R&D Program of China[2020SKA0120200] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2022D01B71] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2022D01D85] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[WLFC 2021-XBQNXZ-027] ; West Light Foundation of Chinese Academy of Sciences[2021-XBQNXZ-027] ; The 2022 project Xinjiang uygur autonomous region of China for Tianchi talents ; Tianshan Talent Training Program for Young Elite Scientists[2023TSYC-551QNTJ0024] ; Tianshan Talent Program of Xinjiang Uygur autonomous region[2023TSYCTD0013] ; Scientific Instrument Developing Project of the Chinese Academy of Sciences[PTYQ2022YZZD01] ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001469774900001
出版者IOP Publishing Ltd
资助机构National Natural Science Foundation of China (NSFC) ; Major Science and Technology Program of Xinjiang Uygur Autonomous ; National Key R&D Program of China ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; West Light Foundation of Chinese Academy of Sciences ; The 2022 project Xinjiang uygur autonomous region of China for Tianchi talents ; Tianshan Talent Training Program for Young Elite Scientists ; Tianshan Talent Program of Xinjiang Uygur autonomous region ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments
源URL[http://ir.xao.ac.cn/handle/45760611-7/7708]  
专题脉冲星研究团组
通讯作者Wang, N.
作者单位1.Chinese Acad Sci, Key Lab Radio Astron & Technol, A20 Datun Rd, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China
3.Xinjiang Key Lab Radio Astrophys, 150 Sci 1-St, Urumqi 830011, Peoples R China
4.CSIRO Astron & Space Sci, POB 76, Epping, NSW 1710, Australia
推荐引用方式
GB/T 7714		 Sun, S. N.,Wang, N.,Yan, W. M.,et al. The Emission Geometry of Pulsars with Interpulses[J]. ASTROPHYSICAL JOURNAL,2025,983(2):179.
APA Sun, S. N.,Wang, N.,Yan, W. M.,&Wang, S. Q..(2025).The Emission Geometry of Pulsars with Interpulses.ASTROPHYSICAL JOURNAL,983(2),179.
MLA Sun, S. N.,et al."The Emission Geometry of Pulsars with Interpulses".ASTROPHYSICAL JOURNAL 983.2(2025):179.

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