Heliospheric Current Sheet and Effects of Its Interaction with Solar Cosmic Raysстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 26 сентября 2016 г.
Аннотация:—The effects of interaction of solar cosmic rays (SCRs) with the heliospheric current sheet (HCS)
in the solar wind are analyzed. A self-consistent kinetic model of the HCS is developed in which ions with quasi- adiabatic dynamics can present. The HCS is considered an equilibrium embedded current structure in which two main plasma species with different temperatures (the low-energy background plasma of the solar wind and the higher energy SCR component) contribute to the current. The obtained results are verified by com- paring with the results of numerical simulations based on
solving equations of motion by the particle tracing method in the given HCS magnetic field with
allowance for SCR particles. It is shown that the HCS is a rel- atively thin multiscale current
configuration embedded in a thicker plasma layer. In this case, as a rule, the shear (tangential
to the sheet current) component of the magnetic field is present in the HCS. Taking into account
high-energy SCR particles in the HCS can lead to a change of its configuration and the formation of
a multiscale embedded structure. Parametric family of solutions is considered in which the current
balance in the HCS is provided at different SCR temperatures and different densities of the
high-energy plasma. The SCR densities are determined at which an appreciable (detectable by
satellites) HCS thickening can occur. Possible applications of this modeling to explain experimental observations are discussed.