Institutional Repository of Radio Astronomy Research Laboratory
| High-altitude Magnetospheric Emissions from Two Pulsars | |
Yuan, Mao1,2; Zhu, Weiwei1; Kramer, Michael3; Peng, Bo1; Lu, Jiguang1; Xu, Renxin4,5; Shao, Lijing5; Wang, Hong-Guang6; Meng, Lingqi1,2; Niu, Jiarui1,2; Zhao, Rushuang1; Miao, Chenchen1,2; Miao, Xueli1; Xue, Mengyao1; Feng, Yi7; Wang, Pei1; Li, Di1; Zhang, Chengming1; Champion, David J.3; Fonseca, Emmanuel8,9; Hu, Huanchen3; Yao, Jumei10 ; Freire, Paulo C. C.3; Guo, Yanjun3
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| 2023-06-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL
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| ISSN | 0004-637X |
| Volume | 949Issue:2Pages:115 |
| Contribution Rank | 10 |
| Abstract | 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. |
| DOI | 10.3847/1538-4357/accb9a |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | RADIO-EMISSION ; EMPIRICAL-THEORY ; FREQUENCY-DEPENDENCE ; INTEGRATED PROFILES ; CORE EMISSION ; MAIN PULSE ; X-RAY ; MODE ; POLARIZATION ; GEOMETRY |
| Funding Project | 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 Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001000805600001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | 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 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5496 |
| 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 | Yuan, Mao |
| Affiliation | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Astron & Space Sci, Beijing 100049, Peoples R China 3.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany 4.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 5.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 6.Guangzhou Univ, Dept Astron, Guangzhou 510006, Peoples R China 7.Zhejiang Lab, Res Inst Artificial Intelligence, Hangzhou 311121, Zhejiang, Peoples R China 8.West Virginia Univ, Dept Phys & Astron, POB 6315, Morgantown, WV 26506 USA 9.West Virginia Univ, Ctr Gravitat Waves & Cosmol, Chestnut Ridge Res Bldg, Morgantown, WV 26505 USA 10.Chinese Acad Sci, Xinjiang Astron Observ, 150,Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China |
| Recommended Citation GB/T 7714 | Yuan, Mao,Zhu, Weiwei,Kramer, Michael,et al. High-altitude Magnetospheric Emissions from Two Pulsars[J]. ASTROPHYSICAL JOURNAL,2023,949(2):115. |
| 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),115. |
| MLA | Yuan, Mao,et al."High-altitude Magnetospheric Emissions from Two Pulsars".ASTROPHYSICAL JOURNAL 949.2(2023):115. |
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| Yuan-2023-High-altit（2261KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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