The Overall Emission Arrangement in Four Long-period Pulsars
文献类型：期刊论文
| 作者 | Yuen, Rai1,2 |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2026-04-29 |
| 卷号 | 26期号:4页码:9 |
| 关键词 | radiation mechanisms: non-thermal stars: neutron (stars:) pulsars: general |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/ae3d0f |
| 通讯作者 | Yuen, Rai(ryuen@xao.ac.cn) |
| 英文摘要 | Investigation of the overall emission arrangement in the emission region for four long-period pulsars is conducted by comparing the differences between their observed and predicted profile widths. The observed profile widths are taken from results based on observations with the Five-hundred-meter Aperture Spherical radio Telescope, whereas the predicted widths are derived from the conventional viewing geometry. The geometry predicts a profile width defined by emission coming from all the source points along a trajectory that traverses within an open-field region at certain height. In contrast, the observed profile width corresponds to only the range of the same open-field region cut by the trajectory that is actually detectable to the observer, referred here as the observable emission region. Our results show that the observable emission regions tend to coincide with the open-field regions, and their centers also exhibit a tendency to align, meaning that the emission originates around the magnetic pole. We demonstrate that the emission structure is likely uniform in the open-field region at a large rotation period. The field lines are mostly dipolar, and the radio emission is confined within the open-field region. |
| WOS关键词 | RADIO-EMISSION ; EMPIRICAL-THEORY ; FREQUENCY-DEPENDENCE ; SUBPULSE MODULATION ; DRIFTING SUBPULSES ; WIDTH STATISTICS ; DEATH LINE ; POLARIZATION ; MODEL ; NULLS |
| 资助项目 | National Natural Science Foundation of China (NSFC)[12288102] ; National Key Program for Science and Technology Research and Development[2022YFC2205201] ; National SKA Program of China[2020SKA0120200] ; NSFC project[12041303] ; NSFC project[12041304] ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-2] ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-4] ; 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:001700646500001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; National Key Program for Science and Technology Research and Development ; National SKA Program of China ; NSFC project ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/8599]  |
| 专题 | 脉冲星研究团组 |
| 通讯作者 | Yuen, Rai |
| 作者单位 | 1.Xinjiang Key Lab Radio Astrophys, Urumqi 830011, Peoples R China 2.Chinese Acad Sci, State Key Lab Radio Astron & Technol, Xinjiang Astron Observ, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuen, Rai. The Overall Emission Arrangement in Four Long-period Pulsars[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2026,26(4):9. |
| APA | Yuen, Rai.(2026).The Overall Emission Arrangement in Four Long-period Pulsars.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,26(4),9. |
| MLA | Yuen, Rai."The Overall Emission Arrangement in Four Long-period Pulsars".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 26.4(2026):9. |
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来源：新疆天文台
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