Institutional Repository of Radio Astronomy Research Laboratory
| Polarimetric Observations of PSR J0614+2229 and PSR J1938+2213 Using FAST | |
Sun, S. N.1 ; Yan, W. M.1,2,3; Wang, N.1,2,3; Wang, H. G.1,4; Wang, S. Q.1; Dang, S. J.5
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| 2022-07-01 | |
| Source Publication | Astrophysical Journal
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| ISSN | 0004-637X |
| Volume | 934Issue:1Pages:57 |
| Contribution Rank | 1 |
| Abstract | 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. |
| Keyword | time resolution observations single-pulse observations radio pulsars emission polarization nulls model radiation component profile Astronomy & Astrophysics |
| Subtype | Article |
| DOI | 10.3847/1538-4357/ac7c15 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000830154500001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5144 |
| Collection | 射电天文研究室_脉冲星研究团组 射电天文研究室 科研仪器设备产出_我台利用FAST观测数据文章 |
| Affiliation | 1.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, Xinjiang, 830011, Peopleʼs Republic of China; 2.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Nanjing, 210008, Peopleʼs Republic of China; 3.Xinjiang Key Laboratory of Radio Astrophysics, 150 Science1-Street, Urumqi, Xinjiang, 830011, People’s 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 |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Sun-2022-Polarimetri（2924KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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