Interplay between Alfv\'en and magnetosonic waves in compressible magnetohydrodynamics turbulence

摘要: Using spatio-temporal spectra we show direct evidence of excitation magnetosonic and Alfven waves in three-dimensional compressible magnetohydrodynamic turbulence at small Mach numbers. For the plasma pressure dominated regime, or high $\beta$ regime (with ratio between fluid magnetic pressure), for low study field fluctuations parallel perpendicular to a guide $\textbf{B}_0$. In case find incompressible fluctuations, with transfer energy towards Alfvenic modes lesser extent modes. particular, signatures presence fast scenario compatible that weak turbulence. case, slow are present, no clear trace waves, significant part is carried by two-dimensional turbulent eddies.