Modulation effects of a changing solar wind speed on low-energy electrons

被引:3
作者
Ferreira, SES [1 ]
Potgieter, MS [1 ]
Moeketsi, DM [1 ]
机构
[1] Potchefstroom Univ Christian Higher Educ, Sch Phys, Unit Space Phys, ZA-2520 Potchefstroom, South Africa
来源
HELIOSPHERE AT SOLAR MAXIMUM | 2003年 / 32卷 / 04期
关键词
D O I
10.1016/S0273-1177(03)80072-8
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
The heliospheric modulation of galactic and jovian electrons is studied using a fully three-dimensional, steady-state model based on Parker's transport equation including the jovian electron source. The model is used to study the transport of 7 MeV jovian, and galactic electrons in the heliosphere by changing the solar wind speed profile from solar minimum to solar maximum conditions. It is found that these changes can produce up to a factor of two change in the intensity of these electrons in the inner heliosphere depending on one's position. A solar maximum wind speed profile favours jovian electrons to reach higher heliolatitudes. (C) 2003 COSPAR. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:675 / 680
页数:6
相关论文
共 8 条
[1]   Modulation of Jovian and galactic electrons in the heliosphere 2. Radial transport of a few MeV electrons [J].
Ferreira, SES ;
Potgieter, MS ;
Burger, RA ;
Heber, B ;
Fichtner, H ;
Lopate, C .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2001, 106 (A12) :29313-29321
[2]   Modulation of Jovian and galactic electrons in the heliosphere 1. Latitudinal transport of a few MeV electrons [J].
Ferreira, SES ;
Potgieter, MS ;
Burger, RA ;
Heber, B ;
Fichtner, H .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2001, 106 (A11) :24979-24987
[3]   On the propagation of Jovian electrons in the heliosphere: transport modelling in 4-D phase space [J].
Fichtner, H ;
Potgieter, M ;
Ferreira, S ;
Burger, A .
GEOPHYSICAL RESEARCH LETTERS, 2000, 27 (11) :1611-1614
[4]  
HEBER B, 2002, IN PRESS ASTROPHYS J
[5]   Ulysses' second orbit:: Remarkably different solar wind [J].
McComas, DJ ;
Goldstein, R ;
Gosling, JT ;
Skoug, RM .
SPACE SCIENCE REVIEWS, 2001, 97 (1-4) :99-103
[6]   PASSAGE OF ENERGETIC CHARGED PARTICLES THROUGH INTERPLANETARY SPACE [J].
PARKER, EN .
PLANETARY AND SPACE SCIENCE, 1965, 13 (01) :9-&
[7]   The solar wind: From solar minimum to solar maximum [J].
Richardson, JD ;
Wang, C ;
Paularena, KI .
GALACTIC AND ANOMALOUS COSMIC RAYS IN THE HELIOSPHERE: THE CYCLE 22 SOLAR MINIMUM AND THE ONSET OF CYCLE 23, 2001, 27 (03) :471-479
[8]   PROTONS AND ELECTRONS IN JUPITERS MAGNETIC-FIELD - RESULTS FROM UNIVERSITY OF CHICAGO EXPERIMENT ON PIONEER 10 [J].
SIMPSON, JA ;
HAMILTON, D ;
LENTZ, G ;
MCKIBBEN, RB ;
MOGROCAM.A ;
PERKINS, M ;
PYLE, KR ;
TUZZOLINO, AJ ;
OGALLAGH.JJ .
SCIENCE, 1974, 183 (4122) :306-309