Parametric and high-frequency instability of Alfvén and magnetoacoustic waves in a plane waveguide run through by an ionized gas flow with a transverse magnetic field

We study the parametric and high-frequency instability of Alfvén waves and magnetic sound in a plane waveguide run through by a plasma flow. The mode energies and synchronism conditions are described and the possibility of efficient spectral up-conversion of Alfvén modes and magnetic sound is shown. State Technical University, Nizhny Novgorod, Russia. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 41, No. 4, pp. 469–474, April, 1998.