DYNAMICAL PROPERTY OF ALFVENIC-INERTIAL WAVES. ZERO FREQUENCY BIFURCATION BETWEEN PURE ALFVENIC STEADY STATES

Abstract

This paper analyzes the existence of the Dynamic Property of Beltrami flows^1-7 in Magnetohydrodynamics (MHD) (DPBF, González, 2014, 2022, 2023). It is found that for an MHD equilibrium in rigid rotation and with an azimuthal magnetic field with con , beltramized and aligned perturbations follow a traveling wave dynamics if the alignment factors and satisfy a consistency condition that neutralizes the effects of azimuthal shear. A frequency contraction with respect to the pure inertial spectrum and a classical Zeeman splitting are found. Under these conditions, when , a zero-frequency bifurcation occurs between two pure Alfvén states, the second of which is more complex and self-organized, during a relaxation process to that state of minimum global energy