The force-free dipole magnetosphere in nonlinear electrodynamics
文献类型:期刊论文
作者 | Li HQ(李惠泉)1,2,3; Yang XL(杨晓林)1,2,3; Wang JC(王建成)1,2,3 |
刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS |
出版日期 | 2020-03-01 |
卷号 | 20期号:3页码:6 |
ISSN号 | 1674-4527 |
关键词 | stars neutron stars magnetars stars magnetic field |
DOI | 10.1088/1674-4527/20/3/38 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | Quantum electrodynamics (QED) effects may be included in physical processes of magnetar and pulsar magnetospheres with strong magnetic fields. Involving the quantum corrections, Maxwell electrodynamics is modified to nonlinear electrodynamics. In this work, we study the force-free magnetosphere in nonlinear electrodynamics in a general framework. The pulsar equation describing a steady and axisymmetric magnetosphere is derived, which now admits solutions with corrections. We derive the first-order nonlinear corrections to the near-zone dipole magnetosphere in some popular nonlinear effective theories. The field lines of the corrected dipole tend to converge on the rotational axis so that the fields in the polar region are stronger compared to the pure dipole case. |
学科主题 | 天文学 ; 天体物理学 ; 高能天体物理学 ; 恒星与银河系 |
URL标识 | 查看原文 |
出版地 | 20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA |
资助项目 | Yunnan Natural Science Foundation[2017FB005] ; Yunnan Natural Science Foundation[2014FB188] |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
CSCD记录号 | CSCD:6721340 |
出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
WOS记录号 | WOS:000526406700001 |
资助机构 | Yunnan Natural Science FoundationYunnan Natural Science Foundation[2017FB005, 2014FB188] |
源URL | [http://ir.ynao.ac.cn/handle/114a53/23041] |
专题 | 云南天文台_高能天体物理研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
通讯作者 | Li HQ(李惠泉) |
作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China 3.Center for AstronomicalMega-Science, Chinese Academy of Sciences, Beijing 100101, China |
推荐引用方式 GB/T 7714 | Li HQ,Yang XL,Wang JC. The force-free dipole magnetosphere in nonlinear electrodynamics[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2020,20(3):6. |
APA | Li HQ,Yang XL,&Wang JC.(2020).The force-free dipole magnetosphere in nonlinear electrodynamics.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,20(3),6. |
MLA | Li HQ,et al."The force-free dipole magnetosphere in nonlinear electrodynamics".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 20.3(2020):6. |
入库方式: OAI收割
来源:云南天文台
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