The Relativistic Spin Precession in the Compact Double Neutron Star System PSR J1946+2052
文献类型：期刊论文
| 作者 | Meng,Lingqi2,3; Zhu,Weiwei1,3; Kramer,Michael9,10; Miao,Xueli3; Desvignes,Gregory10; Shao,Lijing3,8,10; Hu,Huanchen10; Freire,Paulo C. C.10; Zhang,Yongkun2,3; Xue,Mengyao3 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2024-04-25 |
| 卷号 | 966期号:1页码:46 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad381c |
| 产权排序 | 10 |
| 英文摘要 | Abstract We observe systematic profile changes in the visible pulsar of the compact double neutron star system PSR J1946+2052 using observations with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The interpulse of PSR J1946+2052 changed from a single-peak to a double-peak shape from 2018–2021. We attribute this evolution as the result of the relativistic spin precession of the pulsar. With the high sensitivity of FAST, we also measure significant polarization for the first time, allowing us to model this with the precessional rotating vector model. Assuming, to the first order, a circular hollow-cone-like emission beam pattern and taking the validity of general relativity (GR), we derive the binary’s orbital inclination angle ( 63 ° ? 3 ° + 5 ° ) and pulsar’s spin geometry. The pulsar’s spin vector and the orbital angular momentum vector are found to be only slightly misaligned ( 0. ° 21 ? 0. ° 10 + 0. ° 28 ). The quoted uncertainties do not reflect the systematic uncertainties introduced by our model assumptions. By simulating future observations of profile and polarization evolution, we estimate that we could constrain the precession rate within a 43% uncertainty in 9 yr. Hence, we suggest that the system’s profile evolution could be combined with precise pulsar timing to test GR in the future. |
| WOS关键词 | GEODETIC PRECESSION ; CELESTIAL MECHANICS ; BINARY-SYSTEMS ; PULSAR ; EMISSION ; DEFINITION ; DISCOVERY ; PSRCHIVE ; GEOMETRY ; GRAVITY |
| 资助项目 | National SKA Program of China ; National Natural Science Foundation of China[12203072] ; National Natural Science Foundation of China[12041303] ; National Natural Science Foundation of China[12203070] ; CAS-MPG LEGACY project ; Max Planck Partner Group Program - Max Planck Society ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2022D01D85] ; Major Science and Technology Program of Xinjiang Uygur[Au320.50] ; Major Science and Technology Program of Xinjiang Uygur[2022A03013-2] ; [2020SKA0120200] ; [2020SKA0120300] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | IOP:APJ_966_1_46 |
| 出版者 | The American Astronomical Society |
| 资助机构 | National SKA Program of China ; National Natural Science Foundation of China ; CAS-MPG LEGACY project ; Max Planck Partner Group Program - Max Planck Society ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Major Science and Technology Program of Xinjiang Uygur |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/6414]  |
| 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 | Zhu,Weiwei |
| 作者单位 | 1.Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University, Beijing 102206, People's Republic of China 2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China 3.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People's Republic of China 4.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, 150, Science 1-Street, Urumqi, Xinjiang 830011, People's Republic of China 5.Research Institute of Artificial Intelligence, Zhejiang Lab, Hangzhou, Zhejiang 311121, People's Republic of China 6.National Space Science Center, Chinese Academy of Sciences, Beijing 100190, People's Republic of China 7.The Key Laboratory of Cosmic Rays (Tibet University), Ministry of Education, Lhasa 850000, People's Republic of China 8.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People's Republic of China 9.Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, M13 9PL Manchester, UK 10.Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany |
| 推荐引用方式 GB/T 7714 | Meng,Lingqi,Zhu,Weiwei,Kramer,Michael,et al. The Relativistic Spin Precession in the Compact Double Neutron Star System PSR J1946+2052[J]. The Astrophysical Journal,2024,966(1):46. |
| APA | Meng,Lingqi.,Zhu,Weiwei.,Kramer,Michael.,Miao,Xueli.,Desvignes,Gregory.,...&Zhang,Chengmin.(2024).The Relativistic Spin Precession in the Compact Double Neutron Star System PSR J1946+2052.The Astrophysical Journal,966(1),46. |
| MLA | Meng,Lingqi,et al."The Relativistic Spin Precession in the Compact Double Neutron Star System PSR J1946+2052".The Astrophysical Journal 966.1(2024):46. |
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