Abstract
On the basis of the three-fluid approximation, we consider the generation of linear Alfven waves with periods \({\gtrsim}\,10^{-3}~\mbox{s}\) in the collisional partially ionized plasma of the solar photosphere. The results obtained in previous work (Tsap, Stepanov, and Kopylova in Solar Phys. 270, 205, 2011) are generalized for the case of the arbitrary ratio between the initial velocities of ions and neutral atoms. We find that the ponderomotive force plays an important role during Alfven wave excitation and propagation. Furthermore, the energy flux of Alfven waves does not depend on the degree of the plasma ionization if the magnetic field lines are frozen into the charged particles. These modes can be effectively generated in the weakly ionized plasma of the solar photosphere.
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