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Study of Four Nulling Pulsars with FAST

文献类型：期刊论文

作者Wang, Jingbo4; Xie, Jintao3; Zou, Jing1,2,4; Tang, Jianfei4
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2026-03-31
卷号26期号:3页码:035009
关键词methods: observational (stars:) pulsars: general (stars:) pulsars: individual (PSR J1649+2533, PSR J1752+2359, PSR J1819+1305, PSR J1916+1023)
ISSN号1674-4527
DOI10.1088/1674-4527/ae21c6
产权排序3
英文摘要We present an analysis of four nulling pulsars with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). For PSR J1649+2533, our results suggest mode changing rather than subpulse drifting as previously reported at lower frequencies. For PSR J1752+2359, we confirm its quasi-periodic switching between distinct emission states, but further show that the so-called "quasi-null" or "RRAT-like" state actually consists of persistent low-level emission superposed with occasional bright pulses. For PSR J1819+1305, our data confirm the modulation reported earlier, while additional weaker features are also seen. For PSR J1916+1023, we detect both nulling and subpulse drifting, but find no clear evidence of direct interaction between them. These results provide new insights into the diverse manifestations of pulsar nulling, highlight the capability of FAST to detect subtle emission states, and provide further constraints on pulsar emission variability.
WOS关键词RADIO PULSAR ; PERIODIC NULLS ; EMISSION ; MODULATION ; DISCOVERY
资助项目Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-4] ; Zhejiang Provincial Natural Science Foundation[LY23A030001] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2022D01D85] ; National Natural Science Foundation of China[12041304] ; Chinese Academy of Sciences ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001661913200001
出版者IOP Publishing Ltd
资助机构Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; Zhejiang Provincial Natural Science Foundation ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China
源URL[http://ir.xao.ac.cn/handle/45760611-7/8496]  
专题脉冲星研究团组
通讯作者Tang, Jianfei
作者单位1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Sichuan Univ Sci & Engn, Sch Comp Sci & Engn, Yibin 644000, Peoples R China
4.Lishui Univ, Inst Optoelect Technol, Lishui 323000, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Jingbo,Xie, Jintao,Zou, Jing,et al. Study of Four Nulling Pulsars with FAST[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2026,26(3):035009.
APA Wang, Jingbo,Xie, Jintao,Zou, Jing,&Tang, Jianfei.(2026).Study of Four Nulling Pulsars with FAST.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,26(3),035009.
MLA Wang, Jingbo,et al."Study of Four Nulling Pulsars with FAST".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 26.3(2026):035009.

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