Investigation of Profile Shifting and Subpulse Movement in PSR J0344-0901 with FAST
文献类型：期刊论文
| 作者 | Tedila,H. M.1,9,10,11,12; Yuen,R.8,11; Wang,N.8,11; Li,D.1,6,7,10,12; Wen,Z. G.8,11; Yan,W. M.8,11; Yuan,J. P.8,11; Han,X. H.11; Wang,P.1,12; Zhu,W. W.1,12 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 965期号:2页码:144 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad2e06 |
| 产权排序 | 3 |
| 英文摘要 | Abstract We report two phenomena detected in PSR J0344?0901 from two observations conducted at frequencies centered at 1.25 GHz using the Five-hundred-meter Aperture Spherical Radio Telescope. The first phenomenon manifests as the pulse emission shifting to later longitudinal phases and then gradually returning to its original location. The event lasts for about 216 pulse periods, with an average shift of about 0.°7 measured at the peak of the integrated profile. Changes in the polarization position angle (PPA) are detected around the trailing edge of the profile, together with an increase in the profile width. The second phenomenon is characterized by the apparent movement of subpulses, which results in different subpulse track patterns across the profile window. For the first time in this pulsar, we identify four emission modes, each with unique subpulse movement, and determine the pattern periods for three of them. Pulse nulling was not detected. Modeling of the changes in the PPA using the rotating vector model gives an inclination angle of 75.°12 ± 3.°80 and an impact parameter of ?3.°17 ± 5.°32 for this pulsar. We speculate that the subpulse movement may be related to the shifting of the pulse emission. |
| 语种 | 英语 |
| WOS记录号 | WOS:001203234700001 |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/6405]  |
| 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 |
| 通讯作者 | Yuen,R.; Wang,N. |
| 作者单位 | 1.National Astronomical Observatories, Chinese Academy of Sciences, A20 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China 2.Samarkand State University, Samarkand 140104, Uzbekistan 3.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, People's Republic of China 4.Research Center for Intelligent Computing Platforms, Zhejiang Laboratory, Hangzhou, 311100, People's Republic of China 5.School of Physics and Electronic Science, Guizhou Normal University, Guiyang, 550001, People's Republic of China 6.CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing 100101, People's Republic of China 7.NAOC-UKZN Computational Astrophysics Centre, University of KwaZulu-Natal, Durban 4000, South Africa 8.Xinjiang Key Laboratory of Radio Astrophysics, 150 Science 1-Street, Urumqi, Xinjiang, 830011, People's Republic of China 9.Arba Minch University, Arba Minch 21, Ethiopia 10.University of Chinese Academy of Sciences, 19A Yuquan Road, 100049 Beijing, People's Republic of China |
| 推荐引用方式 GB/T 7714 | Tedila,H. M.,Yuen,R.,Wang,N.,et al. Investigation of Profile Shifting and Subpulse Movement in PSR J0344-0901 with FAST[J]. The Astrophysical Journal,2024,965(2):144. |
| APA | Tedila,H. M..,Yuen,R..,Wang,N..,Li,D..,Wen,Z. G..,...&,.(2024).Investigation of Profile Shifting and Subpulse Movement in PSR J0344-0901 with FAST.The Astrophysical Journal,965(2),144. |
| MLA | Tedila,H. M.,et al."Investigation of Profile Shifting and Subpulse Movement in PSR J0344-0901 with FAST".The Astrophysical Journal 965.2(2024):144. |
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