ANALYTIC PROPERTIES OF FORCE-FREE JETS IN THE KERR SPACETIME-I

	ANALYTIC PROPERTIES OF FORCE-FREE JETS IN THE KERR SPACETIME-I
	Pan, Z 1; Yu C(余聪)2,3
刊名	ASTROPHYSICAL JOURNAL
	2015-10-10
卷号	812 期号:1
关键词	gravitation magnetic fields magnetohydrodynamics (MHD)
ISSN号	0004-637X
通讯作者	Pan, Z (reprint author), Univ Calif Davis, Dept Phys, One Shields Ave, Davis, CA 95616 USA.
产权排序	第二完成单位
英文摘要	The Blandford-Znajek (BZ) mechanism describes a process for extracting the rotation energy from a spinning black hole (BH) via magnetic field lines penetrating the event horizon of the central BH. In this paper, we present a perturbation approach to study force-free jets launched by the BZ mechanism, and then discuss its two immediate applications: (1) we present a high-order split-monopole perturbation solution to the BZ mechanism which accurately pins down the energy extraction rate E. and well describes the structure of the BH magnetosphere for the entire range of BH spins (0 <= a <= 1); (2) the approach yields an exact constraint for the monopole field configuration in Kerr spacetime, I = Omega(1-A(phi)(2)), where A(phi) is the phi component of the vector potential of electromagnetic field, Omega is the angular velocity of the magnetic field lines, and I is the poloidal electric current. The constraint is of particular importance to benchmark the accuracy of numerical simulations.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	BLACK-HOLE MAGNETOSPHERES ; RELATIVISTIC MAGNETOHYDRODYNAMIC SIMULATIONS ; ELECTRODYNAMICS ; ACCRETION ; FIELD
收录类别	SCI
原文出处	http://iopscience.iop.org/article/10.1088/0004-637X/812/1/57/meta
语种	英语
WOS记录号	WOS:000364234700057
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4588]
专题	云南天文台_大样本恒星演化研究组云南天文台_中国科学院天体结构与演化重点实验室
作者单位	1.Department of Physics, University of California, One Shields Avenue, Davis, CA, 95616, USA 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China
推荐引用方式 GB/T 7714	Pan, Z,Yu C. ANALYTIC PROPERTIES OF FORCE-FREE JETS IN THE KERR SPACETIME-I[J]. ASTROPHYSICAL JOURNAL,2015,812(1).
APA	Pan, Z,&Yu C.(2015).ANALYTIC PROPERTIES OF FORCE-FREE JETS IN THE KERR SPACETIME-I.ASTROPHYSICAL JOURNAL,812(1).
MLA	Pan, Z,et al."ANALYTIC PROPERTIES OF FORCE-FREE JETS IN THE KERR SPACETIME-I".ASTROPHYSICAL JOURNAL 812.1(2015).