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

Abstract

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 joviair 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.