Estudio de la transferencia de energía entre escalas en la turbulencia del plasma en la magnetosfera terrestre

Abstract

The circumterrestrial space is made up of a magnetized plasma where physic phernomena that have been well studied in the magnetohydrodynamics framework occur. In this work, properties of turbulence observed on the two sides of the Kelvin-Helmholtz Instability (KHI) in the terrestrial magnetospheric boundary layer are compared. In particular, spectra, intermittency and the third-order moment scaling are studied, as well as the distribution of a local energy transfer rate proxy. The analysis is performed usin MMS data from one satellite longitudinal crossing of the KHI. Two regions, on in the magnetosheath and the other in the magnetosphere, are studied separately as well as their turbulent behaviors from the MHD and Hall-MHD approximations.