Forced hybrid-kinetic plasma turbulence in 2D3V.
Cerri S.S., Califano F., Jenko F., Told D., Rincon F.
A frontier problem in space plasma research is the understanding of kinetic plasma turbulence. In this context, the solar wind (SW) represents an ideal natural plasma laboratory. Here we investigate the properties of turbulence from magnetohydrodynamic (MHD) to sub-ion-gyroradius scales ("dissipation" range) by means of unprecedented high-resolution simulations of forced hybrid-kinetic turbulence in a 2D3V phase-space. Typical SW values of the plasma beta parameter are investigated. A reasonable agreement with SW observations and with theory is found. The type of turbulent fluctuations at small scales are analyzed and possible implications for SW turbulence are drawn.