High-altitude Magnetospheric Emissions from Two Pulsars
文献类型：期刊论文
| 作者 | Yuan, Mao9,10; Zhu, Weiwei10; Kramer, Michael8; Peng, Bo10; Lu, Jiguang10; Xu, Renxin6,7; Shao, Lijing6; Wang, Hong-Guang5; Meng, Lingqi9,10; Niu, Jiarui9,10 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 949期号:2页码:10 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/accb9a |
| 通讯作者 | Yuan, Mao(yuanmao@bao.ac.cn) |
| 英文摘要 | We discover three new weak pulse components in two known pulsars, one in PSR J0304+1932 and two in PSR J1518+4904. These components are emitted about halfway between the main emission beam and the interpulse beam (beam from the opposite pole). They are separated from their main pulse peak by 99 degrees +/- 3 degrees for J0304+1932 and 123.degrees 6 +/- 0.degrees 7 (leading) and 93 degrees +/- 0.degrees 4 (trailing) for J1518+4904. Their peak-intensity ratios to main pulses are similar to 0.06% for J0304+1932 and similar to 0.17% and similar to 0.83% for J1518+4904. We also analyzed the flux fluctuations and profile variations of the emissions for the two pulsars. The results show correlations between the weak pulses and their main pulses, indicating that these emissions come from the same pole. We estimated the emission altitude of these weak pulses and derived a height of about half of the pulsar's light-cylinder radius. These pulse components are a unique sample of high-altitude emissions from pulsars, and challenge the current pulsar emission models. |
| WOS关键词 | RADIO-EMISSION ; EMPIRICAL-THEORY ; FREQUENCY-DEPENDENCE ; INTEGRATED PROFILES ; CORE EMISSION ; MAIN PULSE ; X-RAY ; MODE ; POLARIZATION ; GEOMETRY |
| 资助项目 | Chinese Academy of Sciences - National SKA Program of China ; National Nature Science Foundation[12003028] ; National Nature Science Foundation[2020SKA0120200] ; National Nature Science Foundation[2020SKA0120100] ; National Nature Science Foundation[2020SKA0120300] ; MPG-CAS LEGAC collaboration ; National Astronomical Observatories, Chinese Academy of Sciences ; National SKA Program of China ; [12041303] ; [11873067] ; [12041304] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP Publishing Ltd |
| WOS记录号 | WOS:001000805600001 |
| 资助机构 | Chinese Academy of Sciences - National SKA Program of China ; National Nature Science Foundation ; MPG-CAS LEGAC collaboration ; National Astronomical Observatories, Chinese Academy of Sciences ; National SKA Program of China |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5495]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Yuan, Mao |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Astron Observ, 150,Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 2.West Virginia Univ, Ctr Gravitat Waves & Cosmol, Chestnut Ridge Res Bldg, Morgantown, WV 26505 USA 3.West Virginia Univ, Dept Phys & Astron, POB 6315, Morgantown, WV 26506 USA 4.Zhejiang Lab, Res Inst Artificial Intelligence, Hangzhou 311121, Zhejiang, Peoples R China 5.Guangzhou Univ, Dept Astron, Guangzhou 510006, Peoples R China 6.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 7.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 8.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany 9.Univ Chinese Acad Sci, Coll Astron & Space Sci, Beijing 100049, Peoples R China 10.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Mao,Zhu, Weiwei,Kramer, Michael,et al. High-altitude Magnetospheric Emissions from Two Pulsars[J]. ASTROPHYSICAL JOURNAL,2023,949(2):10. |
| APA | Yuan, Mao.,Zhu, Weiwei.,Kramer, Michael.,Peng, Bo.,Lu, Jiguang.,...&Guo, Yanjun.(2023).High-altitude Magnetospheric Emissions from Two Pulsars.ASTROPHYSICAL JOURNAL,949(2),10. |
| MLA | Yuan, Mao,et al."High-altitude Magnetospheric Emissions from Two Pulsars".ASTROPHYSICAL JOURNAL 949.2(2023):10. |
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来源：新疆天文台
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