Distribution and dynamic of plasma in the magnetospheres of venus and Mars

Abstract

International audienceGeneral features of plasma characteristics in different regions of the induced magnetospheres of Venus and Mars observed by Venus Express, Mars Express and MAVEN are discussed. There are several important plasma reservoirs with different mechanisms of plasma filling and plasma energization. Among them are the ionosphere, boundary layer at the interface between the ionosphere and solar wind, plasma sheet, lobes, ion plume. Dynamics of ions in these regions is strongly controlled by the solar wind and the IMF parameters. Multi-ion origin of plasma introduces additional important features which are important for ion dynamics and filling of plasma reservoirs. The existence of crustal magnetic field on Mars modifies not only the ionosphere but also influences a filling of more remote plasma reservoirs