The anisotropies of galactic cosmic rays:: 3-dimensional modeling

被引：7
|
作者：
Kóta, J [1 ]
Jokipii, JR [1 ]
机构：
[1] Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA
来源：
GALACTIC AND ANOMALOUS COSMIC RAYS IN THE HELIOSPHERE: THE CYCLE 22 SOLAR MINIMUM AND THE ONSET OF CYCLE 23 | 2001年 / 27卷 / 03期
基金：
美国国家航空航天局; 美国国家科学基金会;
关键词：
D O I：
10.1016/S0273-1177(01)00086-2
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
We report on model calculations for the anisotropies of galactic cosmic rays at the orbit of the Earth. We consider the 5 - 25 GV range where the diffusion approximation is still applicable. The predicted ecliptic and North-South components of the anisotropy in various 2-dimensional (2-D) and 3-dimensional (3-D) models are discussed. Our 3-D numerical code, including large-scale particle drifts in a model heliosphere with a wavy current sheet and corotating interaction regions (CIRs), is extended to calculate anisotropies, Simulation results obtained for the two opposite magnetic cycles are presented for 3-D models with uniform solar wind speed as well as for those with CIRs included, Recurrent 27-day variations are discussed. (C) 2001 COSPAR. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：607 / 612
页数：6
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