MODIFICATION OF THE PARALLEL SCATTERING MEAN FREE PATH OF COSMIC RAYS IN THE PRESENCE OF ADIABATIC FOCUSING

doi:10.1088/0004-637X/792/2/85

IGGCAS OpenIR

	MODIFICATION OF THE PARALLEL SCATTERING MEAN FREE PATH OF COSMIC RAYS IN THE PRESENCE OF ADIABATIC FOCUSING
	He, H. -Q.1,2; Schlickeiser, R.1
	2014-09-10
发表期刊	ASTROPHYSICAL JOURNAL
ISSN	0004-637X
卷号	792 期号:2
文章类型	Article
摘要	The cosmic ray mean free path in a large-scale nonuniform guide magnetic field with superposed magnetostatic turbulence is calculated to clarify some conflicting results in the literature. A new, exact integro-differential equation for the cosmic-ray anisotropy is derived from the Fokker-Planck transport equation. A perturbation analysis of this integro-differential equation leads to an analytical expression for the cosmic ray anisotropy and the focused transport equation for the isotropic part of the cosmic ray distribution function. The derived parallel spatial diffusion coefficient and the associated cosmic ray mean free path include the effect of adiabatic focusing and reduce to the standard forms in the limit of a uniform guide magnetic field. For the illustrative case of isotropic pitch angle scattering, the derived mean free path agrees with the earlier expressions of Beeck & Wibberenz, Bieber & Burger, Kota, and Litvinenko, but disagrees with the result of Shalchi. The disagreement with the expression of Shalchi is particularly strong in the limit of strong adiabatic focusing.
关键词	cosmic rays diffusion magnetic fields
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1088/0004-637X/792/2/85
资助者	Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; National Natural Science Foundation of China(41204130 ; National Natural Science Foundation of China(41204130 ; National Important Basic Research Project(2011CB811405) ; National Important Basic Research Project(2011CB811405) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; Schl 201/29-1) ; Schl 201/29-1) ; 41321003 ; 41321003 ; 41131066) ; 41131066) ; Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; National Natural Science Foundation of China(41204130 ; National Natural Science Foundation of China(41204130 ; National Important Basic Research Project(2011CB811405) ; National Important Basic Research Project(2011CB811405) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; Schl 201/29-1) ; Schl 201/29-1) ; 41321003 ; 41321003 ; 41131066) ; 41131066) ; Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; National Natural Science Foundation of China(41204130 ; National Natural Science Foundation of China(41204130 ; National Important Basic Research Project(2011CB811405) ; National Important Basic Research Project(2011CB811405) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; Schl 201/29-1) ; Schl 201/29-1) ; 41321003 ; 41321003 ; 41131066) ; 41131066) ; Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; National Natural Science Foundation of China(41204130 ; National Natural Science Foundation of China(41204130 ; National Important Basic Research Project(2011CB811405) ; National Important Basic Research Project(2011CB811405) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; Schl 201/29-1) ; Schl 201/29-1) ; 41321003 ; 41321003 ; 41131066) ; 41131066)
关键词[WOS]	SOLAR ENERGETIC PARTICLES ; RANDOM MAGNETIC-FIELDS ; DIFFUSION-COEFFICIENT ; CHARGED-PARTICLES ; TRANSPORT ; APPROXIMATION ; PROPAGATION
收录类别	SCI
语种	英语
资助者	Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; National Natural Science Foundation of China(41204130 ; National Natural Science Foundation of China(41204130 ; National Important Basic Research Project(2011CB811405) ; National Important Basic Research Project(2011CB811405) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; Schl 201/29-1) ; Schl 201/29-1) ; 41321003 ; 41321003 ; 41131066) ; 41131066) ; Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; National Natural Science Foundation of China(41204130 ; National Natural Science Foundation of China(41204130 ; National Important Basic Research Project(2011CB811405) ; National Important Basic Research Project(2011CB811405) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; Schl 201/29-1) ; Schl 201/29-1) ; 41321003 ; 41321003 ; 41131066) ; 41131066) ; Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; National Natural Science Foundation of China(41204130 ; National Natural Science Foundation of China(41204130 ; National Important Basic Research Project(2011CB811405) ; National Important Basic Research Project(2011CB811405) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; Schl 201/29-1) ; Schl 201/29-1) ; 41321003 ; 41321003 ; 41131066) ; 41131066) ; Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; Deutsche Forschungsgemeinschaft(Schl 201/23-1 ; National Natural Science Foundation of China(41204130 ; National Natural Science Foundation of China(41204130 ; National Important Basic Research Project(2011CB811405) ; National Important Basic Research Project(2011CB811405) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; International Postdoctoral Exchange Fellowship Program of China(20130023) ; Schl 201/29-1) ; Schl 201/29-1) ; 41321003 ; 41321003 ; 41131066) ; 41131066)
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
WOS记录号	WOS:000341172200003
出版者	IOP PUBLISHING LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.iggcas.ac.cn/handle/132A11/85815
专题	中国科学院地质与地球物理研究所
通讯作者	He, H. -Q.
作者单位	1.Ruhr Univ Bochum, Lehrstuhl Weltraum & Astrophys 4, Inst Theoret Phys, D-44780 Bochum, Germany 2.Chinese Acad Sci, Inst Geol & Geophys, Div Geomagnetism & Space Phys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	He, H. -Q.,Schlickeiser, R.. MODIFICATION OF THE PARALLEL SCATTERING MEAN FREE PATH OF COSMIC RAYS IN THE PRESENCE OF ADIABATIC FOCUSING[J]. ASTROPHYSICAL JOURNAL,2014,792(2).
APA	He, H. -Q.,&Schlickeiser, R..(2014).MODIFICATION OF THE PARALLEL SCATTERING MEAN FREE PATH OF COSMIC RAYS IN THE PRESENCE OF ADIABATIC FOCUSING.ASTROPHYSICAL JOURNAL,792(2).
MLA	He, H. -Q.,et al."MODIFICATION OF THE PARALLEL SCATTERING MEAN FREE PATH OF COSMIC RAYS IN THE PRESENCE OF ADIABATIC FOCUSING".ASTROPHYSICAL JOURNAL 792.2(2014).