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Unveiling the Emission Properties of Three Long-period Pulsars Using FAST

文献类型：期刊论文

作者Tedila, H. M.2,7; Li, D.2,8,9; Wang, P.2,3; Yuen, R.4,5; Yuan, J. P.4,5; Wang, N.4,5; Wen, Z. G.4,5; Dang, S. J.6; Tegegne, A. G.1,4,7; Rejep, R.2
刊名ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
出版日期2025-04-01
卷号277期号:2页码:39
ISSN号0067-0049
DOI10.3847/1538-4365/adb280
产权排序6
英文摘要We detail the emission behaviors of three long-period pulsars detected using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) during the Commensal Radio Astronomy FAST survey. Their rotational periods range from 1.83-4.75 s, and the null fractions (NFs) measure between 28% and 53%. PSR J1945+1211 and PSR J2323+1214 exhibited quasiperiodic nulls, with durations of around 57 s. The longest null was observed in PSR J1945+1211, lasting 76 s. PSR J2323+1214 displayed varying NFs between its leading and trailing components. For the first time in PSR J2323+1214, we detected five dwarf pulses, which are much weaker and narrower pulses than typical burst pulses. In addition, we investigate the microstructure of PSR J1900-0134 for the first time, revealing intricate pulses of up to 2.05 ms and noting its complex emission characteristics. Bright pulses occur in all of these sources at different rates. These observations suggest complex magnetospheric processes, potentially related to magnetic reconnections, and provide insights into the origins of bright and microstructure pulses, as well as their distinction from ordinary pulses.
WOS关键词GIANT RADIO PULSES ; EMPIRICAL-THEORY ; PSR ; MICROSTRUCTURE ; MODULATION ; PERIODICITIES ; RECONNECTION ; POLARIZATION ; PROFILE ; SEARCH
资助项目National Natural Science Foundation of China (NSFC)[11873080] ; National Natural Science Foundation of China (NSFC)[12041301] ; Alliance of International Science Organizations ; NSFC[11988101] ; NSFC[12041303] ; NSFC[12288102] ; NSFC[12041304] ; Xinjiang Uygur Autonomous Region of China ; CAS Youth Interdisciplinary Team ; Youth Innovation Promotion Association CAS[2021055] ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; National SKA Program of China ; National Key Program for Science and Technology Research and Development[2022YFC2205201] ; National Key Program for Science and Technology Research and Development[2022YFC2205200] ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-2] ; Open program of the Key Laboratory of Xinjiang Uygur Autonomous Region[2020D04049] ; Operation, Maintenance, and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; [U2031117] ; [U1838109] ; [ANSO-VF-2024-01] ; [2020SKA0120200] ; [ZD2020-06] ; [PT2020-0045]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001448487400001
出版者IOP Publishing Ltd
资助机构National Natural Science Foundation of China (NSFC) ; Alliance of International Science Organizations ; NSFC ; Xinjiang Uygur Autonomous Region of China ; CAS Youth Interdisciplinary Team ; Youth Innovation Promotion Association CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; National SKA Program of China ; National Key Program for Science and Technology Research and Development ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; Open program of the Key Laboratory of Xinjiang Uygur Autonomous Region ; Operation, Maintenance, and Upgrading Fund for Astronomical Telescopes and Facility Instruments
源URL[http://ir.xao.ac.cn/handle/45760611-7/7522]  
专题脉冲星研究团组
通讯作者Li, D.; Wang, P.
作者单位1.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100101, Peoples R China
3.Beijing Normal Univ, Inst Frontiers Astron & Astrophys, Beijing 102206, Peoples R China
4.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China
5.Xinjiang Key Lab Radio Astrophys, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China
6.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China
7.Arba Minch Univ, Arba Minch 21, Arba Minch, Ethiopia
8.Tsinghua Univ, Dept Astron, Beijing 100084, Peoples R China
9.Zhejiang Lab, Res Ctr Astron Comp, Hangzhou 311121, Zhejiang, Peoples R China
推荐引用方式
GB/T 7714		 Tedila, H. M.,Li, D.,Wang, P.,et al. Unveiling the Emission Properties of Three Long-period Pulsars Using FAST[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2025,277(2):39.
APA Tedila, H. M..,Li, D..,Wang, P..,Yuen, R..,Yuan, J. P..,...&FAST Collaboration.(2025).Unveiling the Emission Properties of Three Long-period Pulsars Using FAST.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,277(2),39.
MLA Tedila, H. M.,et al."Unveiling the Emission Properties of Three Long-period Pulsars Using FAST".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 277.2(2025):39.

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