Institutional Repository of Radio Astronomy Research Laboratory
| Studying the nulling, subpulse drifting, and moding in PSR J1921+1948 with the FAST | |
Shang, Lunhua1,2,3; Bai, Juntao4,5 ; Xu, Xin1,2,6; Dang, Shijun1,2; Wang, Shuangqiang4,5; Dong, Aijun1,2; Pang, Lijun1; Yu, Yan1,2; Li, Qingying1,2
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| 2024-02-15 | |
| Source Publication | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| ISSN | 0035-8711 |
| Volume | 528Issue:4Pages:6388-6397 |
| Contribution Rank | 4 |
| Abstract | We reported the observations of nulling, subpulse drifting, and moding of radio radiation in pulsar (PSR) B1918+19 at 1250 MHz with the Five-hundred-meter Aperture Spherical radio Telescope. The nulling fraction is 2.6 +/- 0.1 per cent and no periodicity of nulling can be seen. We confirmed the existence of three different drift modes (A, B, C) and a disordered mode (N) at 1250 MHz. Unlike the other three modes where the second component of the average pulse profile dominates, the first component of the average pulse profile in mode C is brighter than the other components, the second component shifts forward and the fourth component shifts backward. The bidrifting phenomenon is observed in PSR B1918+19, the drifting of the first and second components is positive, and the drift direction of the fourth component is negative. The drifting rate of the drift bands composed of the first and second components has an obvious evolutionary trend. Mode B has a short duration and no clear trend can be seen. But for mode A, the drift rate of each drift band starts relatively fast, then slows down to a steady state, and finally increases slowly until it enters either null or mode N. Further analysis shows that the emergence and significant variation in the drifting period of multidrifting subpulse emission modes for PSR B1918+19 may be due to the aliasing effect. The interesting subpulse emission phenomenon of PSR B1918+19 at different frequencies provides a unique opportunity to understand the switching mechanism of the multidrift mode of the pulsars. |
| Keyword | stars: magnetic fields stars: neutron pulsars: individual: PSR J1921+1948 |
| DOI | 10.1093/mnras/stae408 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | MULTICOMPONENT GAUSSIAN FITS ; INNER ACCELERATION REGION ; SURFACE MAGNETIC-FIELD ; SINGLE-PULSE EMISSION ; EMPIRICAL-THEORY ; GEOMETRICAL ANALYSIS ; RADIO-EMISSION ; MODEL ; MODULATION ; PROFILES |
| Funding Project | Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-3] ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-4] ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region[[2022]B18] ; Academic New Seedling Fund Project of Guizhou Normal University[[2022]137] ; Academic New Seedling Fund Project of Guizhou Normal University[[2022]132] ; Scientific Research Project of the Guizhou Provincial Education[ZK[2022]304] ; Guizhou Provincial Science and Technology Foundation[12203092] ; Guizhou Provincial Science and Technology Foundation[12363005] ; National Natural Science Foundation of China (NSFC) project[2022D01B71] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2020SKA0120100] ; National SKA Program of China ; Chinese Academy of Sciences |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001169271500011 |
| Publisher | OXFORD UNIV PRESS |
| Funding Organization | Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; Academic New Seedling Fund Project of Guizhou Normal University ; Scientific Research Project of the Guizhou Provincial Education ; Guizhou Provincial Science and Technology Foundation ; National Natural Science Foundation of China (NSFC) project ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; National SKA Program of China ; Chinese Academy of Sciences |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/6467 |
| Collection | 射电天文研究室_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 |
| Corresponding Author | Shang, Lunhua; Bai, Juntao; Dang, Shijun |
| Affiliation | 1.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China 2.Guizhou Normal Univ, Guizhou Prov Key Lab Radio Astron & Data Proc, Guiyang 550001, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 5.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 6.Guizhou Normal Univ, Sch Math Sci, Guiyang 550001, Peoples R China |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Shang, Lunhua,Bai, Juntao,Xu, Xin,et al. Studying the nulling, subpulse drifting, and moding in PSR J1921+1948 with the FAST[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2024,528(4):6388-6397. |
| APA | Shang, Lunhua.,Bai, Juntao.,Xu, Xin.,Dang, Shijun.,Wang, Shuangqiang.,...&Li, Qingying.(2024).Studying the nulling, subpulse drifting, and moding in PSR J1921+1948 with the FAST.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,528(4),6388-6397. |
| MLA | Shang, Lunhua,et al."Studying the nulling, subpulse drifting, and moding in PSR J1921+1948 with the FAST".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 528.4(2024):6388-6397. |
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| File Name/Size | DocType | Version | Access | License | ||
| Shang-2024-Studying （3388KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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