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Emission Variation of a Long-period Pulsar Discovered by the Five-hundred-meter Aperture Spherical Radio Telescope (FAST)

文献类型：期刊论文

作者Tedila, H. M.9,10,11; Yuen, R.8,11; Wang, N.7,8,11; Yuan, J. P.7,8,11; Wen, Z. G.7,8,11; Yan, W. M.7,8,11; Wang, S. Q.10,11; Dang, S. J.5,6; Li, D.3,4,10; Wang, P.4
刊名ASTROPHYSICAL JOURNAL
出版日期2022-04-01
卷号929期号:2页码:10
ISSN号0004-637X
DOI10.3847/1538-4357/ac5f42
通讯作者Yuen, R.(ryuen@xao.ac.cn) ; Wang, N.(na.wang@xao.ac.cn)
英文摘要We report on the variation in the single-pulse emission from PSR J1900+4221 (CRAFTS 19C10) observed at frequency centered at 1.25 GHz using the Five-hundred-meter Aperture Spherical radio Telescope. The integrated pulse profile shows two distinct components, referred to here as the leading and trailing components, with the latter component also containing a third weak component. The single-pulse sequence reveals different emissions demonstrating as nulling, regular, and bright pulses, each with a particular abundance and duration distribution. There also exists pulses that follow a log-normal distribution suggesting the possibility of another emission, in which the pulsar is radiating weakly. Changes in the profile shape are seen across different emissions. We examine the emission variations in the leading and trailing components collectively and separately, and find moderate correlation between the two components. The inclination angle is estimated to be about 7 degrees based on pulse-width, and we discuss that nulling in this pulsar does not seem to show correlation with age and rotation period.
WOS关键词DRIFTING SUBPULSES ; EMPIRICAL-THEORY ; MODULATION ; POLARIZATION ; GEOMETRY ; NULLS
资助项目National Natural Science Foundation of China (NSFC)[11988101] ; National Natural Science Foundation of China (NSFC)[U1838109] ; National Natural Science Foundation of China (NSFC)[11873080] ; National Natural Science Foundation of China (NSFC)[557 12041301] ; Arba Minch University[2019A8016609001] ; University of Chinese Academy of Science[2019A8016609001] ; CAS-TWAS President's Fellowship Programme[2019A8016609001] ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 2021 project Xinjiang uygur autonomous region of China for Tianshan elites ; Key Laboratory of Xinjiang Uygur Autonomous Region[2020D04049] ; National SKA Program of China[2020SKA0120200] ; West Light Foundation of Chinese Academy of Sciences[WLFC 2021-XBQNXZ-027] ; National Natural Science Foundation of China (NSFC) project[12041303] ; National Natural Science Foundation of China (NSFC) project[12041304] ; CAS Jianzhihua project ; 2020 project of Xinjiang uygur autonomous region of China
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP Publishing Ltd
WOS记录号WOS:000788284900001
资助机构National Natural Science Foundation of China (NSFC) ; Arba Minch University ; University of Chinese Academy of Science ; CAS-TWAS President's Fellowship Programme ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 2021 project Xinjiang uygur autonomous region of China for Tianshan elites ; Key Laboratory of Xinjiang Uygur Autonomous Region ; National SKA Program of China ; West Light Foundation of Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) project ; CAS Jianzhihua project ; 2020 project of Xinjiang uygur autonomous region of China
源URL[http://ir.xao.ac.cn/handle/45760611-7/4620]  
专题脉冲星研究团组
科研仪器设备产出_我台利用FAST观测数据文章
通讯作者Yuen, R.; Wang, N.
作者单位1.CSIRO Astron & Space Sci, POB 76, Epping, NSW 1710, Australia
2.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100101, Peoples R China
3.Univ KwaZulu Natal, NAOC UKZN Computat Astrophys Ctr, ZA-4000 Durban, South Africa
4.Chinese Acad Sci, CAS Key Lab FAST, NAOC, Beijing 100101, Peoples R China
5.Guizhou Normal Univ, Guizhou Prov Key Lab Radio Astron & Data Proc, Guiyang 550001, Peoples R China
6.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China
7.Xinjiang Key Lab Radio Astrophys, 150 Science1 St, Urumqi 830011, Xinjiang, Peoples R China
8.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China
9.Arba Minch Univ, Arba Minch 21, Ethiopia
10.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Tedila, H. M.,Yuen, R.,Wang, N.,et al. Emission Variation of a Long-period Pulsar Discovered by the Five-hundred-meter Aperture Spherical Radio Telescope (FAST)[J]. ASTROPHYSICAL JOURNAL,2022,929(2):10.
APA Tedila, H. M..,Yuen, R..,Wang, N..,Yuan, J. P..,Wen, Z. G..,...&Xie, J. T..(2022).Emission Variation of a Long-period Pulsar Discovered by the Five-hundred-meter Aperture Spherical Radio Telescope (FAST).ASTROPHYSICAL JOURNAL,929(2),10.
MLA Tedila, H. M.,et al."Emission Variation of a Long-period Pulsar Discovered by the Five-hundred-meter Aperture Spherical Radio Telescope (FAST)".ASTROPHYSICAL JOURNAL 929.2(2022):10.

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