Polarimetric Observations of PSR J0614+2229 and PSR J1938+2213 Using FAST
文献类型：期刊论文
| 作者 | Sun, S. N.2; Yan, W. M.1,2,3 ; Wang, N.1,2,3; Wang, H. G.2,4; Wang, S. Q.2; Dang, S. J.5
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| 刊名 | Astrophysical Journal
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| 出版日期 | 2022-07-01 |
| 卷号 | 934期号:1页码:57 |
| 关键词 | time resolution observations single-pulse observations radio pulsars emission polarization nulls model radiation component profile Astronomy & Astrophysics |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ac7c15 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | We presented observations of PSRs J0614+2229 and J1938+2213 using the Five-hundred-meter Aperture Spherical radio Telescope. PSR J0614+2229 shows two distinct emission states, in which the emission of state A occurs earlier than that of state B in longitude. The phase offset between the average pulse profile peaks of the two states is about 1.degrees 05. The polarization properties of the average pulse profile of the two states are different with different linear position angle swings. We found that the emission becomes brighter during the transition between the two states, which has never been seen in other mode-changing pulsars before. PSR J1938+2213 appears to consist of a weak emission state superposed by brighter burst emissions. The weak state is always present and the energy of the strongest pulse in the burst state is about 57 times larger than that of the average pulse energy. The polarization properties of the two states are also different, and orthogonal polarization modes can be seen only in the burst state, rather than both states. Our results suggest that, for the two pulsars, the emissions of the two states may be generated in different regions in the pulsar magnetosphere. |
| 语种 | 英语 |
| WOS记录号 | WOS:000830154500001 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5144]  |
| 专题 | 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 |
| 作者单位 | 1.Xinjiang Key Laboratory of Radio Astrophysics, 150 Science1-Street, Urumqi, Xinjiang, 830011, People’s Republic of China; 2.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, Xinjiang, 830011, Peopleʼs Republic of China; 3.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Nanjing, 210008, Peopleʼs Republic of China; 4.School of Physics and Electronic Engineering, Guangzhou University, 510006, Guangzhou, People’s Republic of China; 5.School of Physics and Electronic Science, Guizhou Normal University, Guiyang, 550001, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Sun, S. N.,Yan, W. M.,Wang, N.,et al. Polarimetric Observations of PSR J0614+2229 and PSR J1938+2213 Using FAST[J]. Astrophysical Journal,2022,934(1):57. |
| APA | Sun, S. N.,Yan, W. M.,Wang, N.,Wang, H. G.,Wang, S. Q.,&Dang, S. J..(2022).Polarimetric Observations of PSR J0614+2229 and PSR J1938+2213 Using FAST.Astrophysical Journal,934(1),57. |
| MLA | Sun, S. N.,et al."Polarimetric Observations of PSR J0614+2229 and PSR J1938+2213 Using FAST".Astrophysical Journal 934.1(2022):57. |
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