A Single-pulse Study of Three CRAFTS Pulsars Discovered with FAST
文献类型：期刊论文
| 作者 | Rejep, R.8; Zhu, W. W.6,7; Wang, N.3,4,5; Yan, W. M.3,4,5; Yuan, J. P.3,4,5; Wu, Q. D.2,5; Gugercinoglu, E.1,8; Wang, W. Y.2 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2026-03-01 |
| 卷号 | 999期号:1页码:9 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ae40af |
| 通讯作者 | Zhu, W. W.(zhuww@nao.cas.cn) |
| 英文摘要 | We present a comprehensive single-pulse study of three pulsars, namely PSRs J1854-0036, J2159+0202, and J2112+0740, discovered by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in the Commensal Radio Astronomy FAST Survey (CRAFTS). We observe that these pulsars display different kinds of single-pulse phenomena, bearing implications for pulse emission mechanisms and geometry. PSR J1854-0036 exhibits quasiperiodic nulling with a nulling fraction of 31% +/- 1% and a periodicity of (127.4 +/- 0.4)P (where P is the spin period of the pulsar). We identified a weak emission in the null profile, suggesting either a global magnetospheric state switching or a change in geometric orientation rather than complete cessation of emission. PSR J2159+0202 exhibits complex subpulse drifting or intensity modulations with periodicities ranging from P3 = (7.0 +/- 0.2)P to (10.9 +/- 0.1)P. PSR J2112+0740 exhibits burst-like radiation without evidence of nulling or coherent subpulse drifting, potentially associated with stochastic pair production or plasma instabilities within the pulsar's emission region. These results highlight the multiscale nature of the pulsar emission, potentially linking nulling, drifting, and erratic radiation to different magnetospheric processes. |
| WOS关键词 | DRIFTING SUBPULSES ; FREQUENCY-DEPENDENCE ; RADIO-EMISSION ; PERIODIC NULLS ; MODULATION ; COMPONENT |
| 资助项目 | the National Natural Science Foundation of China project[No. 12273100] ; the CAS Project for Young Scientists in Basic Research[No. YSBR-063] ; the Chinese Academy of Sciences Project for National Science Foundation[No. 12421003] ; the Tianshan talents program[No. 2023TSYCTD0013] ; the Tianshan talents program[2024TSYCCX0073] ; the National SKA Program of China[No. 2020SKA0120201] ; grants from Beijing Nova Program[No. 20250484786] ; National Natural Science Foundation of China[QN2023061004L] ; the National Natural Science Foundation of China Project[No. 12288102] ; the Major Science and Technology Program of Xinjiang Uygur Autonomous Region[No. 2022A03013-3] ; the CAS project[No. JZHKYPT-2021-06] ; the National Nature Science Foundation[No.12041303] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001698421700001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | the National Natural Science Foundation of China project ; the CAS Project for Young Scientists in Basic Research ; the Chinese Academy of Sciences Project for National Science Foundation ; the Tianshan talents program ; the National SKA Program of China ; grants from Beijing Nova Program ; National Natural Science Foundation of China ; the National Natural Science Foundation of China Project ; the Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; the CAS project ; the National Nature Science Foundation |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/8609]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Zhu, W. W. |
| 作者单位 | 1.Qingdao Binhai Univ, Sch Arts & Sci, Qingdao 266555, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 3.Xinjiang Key Lab Radio Astrophys, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 4.Chinese Acad Sci, State Key Lab Radio Astron & Technol, Xinjiang Astron Observ, 150 Sci 1-St, Urumqi 830011, Xinjiang, Peoples R China 5.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1-St, Urumqi 830011, Xinjiang, Peoples R China 6.Beijing Normal Univ, Inst Frontiers Astron & Astrophys, Beijing 102206, Peoples R China 7.Chinese Acad Sci, Natl Astron Observ, State Key Lab Radio Astron & Technol, A20 Datun Rd, Beijing 100101, Peoples R China 8.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Rejep, R.,Zhu, W. W.,Wang, N.,et al. A Single-pulse Study of Three CRAFTS Pulsars Discovered with FAST[J]. ASTROPHYSICAL JOURNAL,2026,999(1):9. |
| APA | Rejep, R..,Zhu, W. W..,Wang, N..,Yan, W. M..,Yuan, J. P..,...&Wang, W. Y..(2026).A Single-pulse Study of Three CRAFTS Pulsars Discovered with FAST.ASTROPHYSICAL JOURNAL,999(1),9. |
| MLA | Rejep, R.,et al."A Single-pulse Study of Three CRAFTS Pulsars Discovered with FAST".ASTROPHYSICAL JOURNAL 999.1(2026):9. |
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