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超强磁场下的相对论电子 | |
Alternative Title | Relativistic Electron in a Intense Magnetic Fields |
宋冬灵1; 高志福2![]() ![]() ![]() | |
2014-01 | |
Source Publication | 天文研究与技术
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ISSN | 1672-7673 |
Volume | 11Issue:1Pages:1-12 |
Contribution Rank | 2 |
Abstract | 在以前工作的基础上,推导出超强磁场下简并的、相对论的电子压强P e的普遍表达式;讨论了电子的朗道能级量子化;探索了量子电动力学效应(QED)对中子压强占主导的理想的n-p-e气体系统的影响。主要结论包括:P e与磁场强度B、物质密度ρ及电子丰度Y e有关;磁场越强,电子压强越大;增加的压强是由高值的电子费米能引起的;在超强磁场下,磁星内部总压强是各向异性的;如果考虑到各向异性的总压强,磁星可能是一种更致密、形变后类似于椭球状的中子星;如果考虑到磁场能对状态方程的正能量的贡献,相对于普通射电脉冲星,磁星的质量可能更大些。 |
Other Abstract | Based on previous work, it deduces a general formula for pressure of degenerate and relativistic electrons, P_e , which is suitable for superhigh magnetic fields, discuss the quantization of Landau levels of electrons, and investigate the quantum electrodynamic (QED) effects on the equations of states (EOSs) for ideal n-p-e system , in which the neutron pressure dominates. The main conclusions are as follows: P_e is related to the magnetic field B, matter density ρ, and electron fraction Y_e; the stronger the magnetic field, the higher the electron pressure becomes; the high electron pressure could be caused by high-value Fermi energy of electrons in a superhigh magnetic field; compared with a common radio pulsar, a magnetar could be a more compact oblate spheroid-like deformed neutron star due to the anisotropic total pressure; and an increase in the maximum mass of a magnetar is expected because of the positive contribution of the magnetic field energy to the EOS of the system. |
Correspondent Email | zhifu_gao@xao.ac.cn |
Keyword | 磁星 朗道能级 超强磁场 电子费米能 电子压强 |
DOI | 10.14005/j.cnki.issn1672-7673.2014.01.004 |
Indexed By | CSCD |
Language | 中文 |
CSCD ID | CSCD:5063077 |
Project Number | 2009CB824800 ; 10673021 ; 10773005 ; 10778631 ; 10903019 ; 2009211B35 |
Funding Organization | 973计划 ; 国家自然科学基金 ; 新疆自然科学基金 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.xao.ac.cn/handle/45760611-7/1032 |
Collection | 射电天文研究室_脉冲星研究团组 射电天文研究室 其它 |
Corresponding Author | 高志福 |
Affiliation | 1.信息工程大学理学院,河南 郑州 450001 2.中国科学院新疆天文台,新疆 乌鲁木齐 830011 3.南京大学天文与空间科学学院,南京 210093 |
Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
Recommended Citation GB/T 7714 | 宋冬灵,高志福,王娜,等. 超强磁场下的相对论电子[J]. 天文研究与技术,2014,11(1):1-12. |
APA | 宋冬灵,高志福,王娜,杨文军,&彭秋和.(2014).超强磁场下的相对论电子.天文研究与技术,11(1),1-12. |
MLA | 宋冬灵,et al."超强磁场下的相对论电子".天文研究与技术 11.1(2014):1-12. |
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超强磁场下的相对论电子.pdf(515KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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