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| Evolution of Spin Period and Magnetic Field of the Crab Pulsar: Decay of the Braking Index by the Particle Wind Flow Torque | |
Zhang, Cheng-Min1,2,3; Cui, Xiang-Han1,3; Li, Di1,3,4,5; Wang, De-Hua6; Wang, Shuang-Qiang7 ; Wang, Na7; Zhang, Jian-Wei1; Peng, Bo1,3; Zhu, Wei-Wei1,3; Yang, Yi-Yan8; Pan, Yuan-Yue9
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| 2022-12-01 | |
| Source Publication | UNIVERSE
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| Volume | 8Issue:12Pages:628 |
| Contribution Rank | 7 |
| Abstract | The evolutions of a neutron star's rotation and magnetic field (B-field) have remained unsolved puzzles for over half a century. We ascribe the rotational braking torques of pulsar to both components, the standard magnetic dipole radiation (MDR) and particle wind flow (MDR + Wind, hereafter named MDRW), which we apply to the Crab pulsar (B0531 + 21), the only source with a known age and long-term continuous monitoring by radio telescope. Based on the above presumed simple spin-down torques, we obtain the exact analytic solution on the rotation evolution of the Crab pulsar, together with the related outcomes as described below: (1) unlike the constant characteristic B-field suggested by the MDR model, this value for the Crab pulsar increases by a hundred times in 50 kyr while its real B-field has no change; (2) the rotational braking index evolves from similar to 3 to 1 in the long-term, however, it drops from 2.51 to 2.50 in similar to 45 years at the present stage, while the particle flow contributes approximately 25% of the total rotational energy loss rate; (3) strikingly, the characteristic age has the maximum limit of similar to 10 kyr, meaning that it is not always a good indicator of a real age. Furthermore, we discussed the evolutionary path of the Crab pulsar from the MDR to the wind domination by comparing with the possible wind braking candidate pulsar PSR J1734-3333. |
| Keyword | pulsars general pulsars individual PSR B0531 + 21 (the Crab pulsar) stars neutron supernovae |
| DOI | 10.3390/universe8120628 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | MULTIPOLAR ELECTROMAGNETIC-FIELDS ; ROTATING NEUTRON-STARS ; YOUNG PULSARS ; TIMING NOISE ; UPPER LIMIT ; ORIGIN ; EMISSION ; MAGNETOSPHERE ; BINARY ; NEBULA |
| WOS Research Area | Astronomy & Astrophysics ; Physics |
| WOS Subject | Astronomy & Astrophysics ; Physics, Particles & Fields |
| WOS ID | WOS:000902921800001 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5003 |
| Collection | 射电天文研究室_脉冲星研究团组 |
| Corresponding Author | Zhang, Cheng-Min |
| Affiliation | 1.Chinese Acad Sci, CAS Key Lab FAST, Natl Astron Observ, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 4.Univ KwaZulu Natal, NAOC UKZN Computat Astrophys Ctr, ZA-4000 Durban, South Africa 5.Zhejiang Lab, Res Ctr Intelligent Comp Platforms, Hangzhou 311100, Peoples R China 6.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China 7.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 8.Guizhou Educ Univ, Sch Phys & Elect Sci, Guiyang 550018, Peoples R China 9.Xiangtan Univ, Sch Phys, Xiangtan 533001, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Cheng-Min,Cui, Xiang-Han,Li, Di,et al. Evolution of Spin Period and Magnetic Field of the Crab Pulsar: Decay of the Braking Index by the Particle Wind Flow Torque[J]. UNIVERSE,2022,8(12):628. |
| APA | Zhang, Cheng-Min.,Cui, Xiang-Han.,Li, Di.,Wang, De-Hua.,Wang, Shuang-Qiang.,...&Pan, Yuan-Yue.(2022).Evolution of Spin Period and Magnetic Field of the Crab Pulsar: Decay of the Braking Index by the Particle Wind Flow Torque.UNIVERSE,8(12),628. |
| MLA | Zhang, Cheng-Min,et al."Evolution of Spin Period and Magnetic Field of the Crab Pulsar: Decay of the Braking Index by the Particle Wind Flow Torque".UNIVERSE 8.12(2022):628. |
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| Zhang-2022-Evolution（1383KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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