On a magnetohydrodynamical process of mass loss in AGB stars

A spherically, time independent model is constructed to explain the mass loss observed in cool giants. It is suggested that a random magnetic field frozen within the gas is capable of ejecting matter from the photosphere of AGB (Mira or OH/IR) stars. The velocities at infinity of the ejected material are comparable to the observed velocities of expansion in circumstellar envelopes.