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超强磁场下的相对论电子
Alternative TitleRelativistic Electron in a Intense Magnetic Fields
宋冬灵1; 高志福2; 王娜2; 杨文军2; 彭秋和3
2014-01
Source Publication天文研究与技术
ISSN1672-7673
Volume11Issue:1Pages:1-12
Contribution Rank2
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 Emailzhifu_gao@xao.ac.cn
Keyword磁星 朗道能级 超强磁场 电子费米能 电子压强
DOI10.14005/j.cnki.issn1672-7673.2014.01.004
Indexed ByCSCD
Language中文
CSCD IDCSCD:5063077
Project Number2009CB824800 ; 10673021 ; 10773005 ; 10778631 ; 10903019 ; 2009211B35
Funding Organization973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
Identifierhttp://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
Affiliation1.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 AffilicationXinjiang 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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