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Anales (Asociación Física Argentina)
versión impresa ISSN 0327-358Xversión On-line ISSN 1850-1168
Resumen
SALLAGO, P. A.. Large amplitude alfvén waves in partially ionized plasmas. An. AFA [online]. 2022, vol.33, n.3, pp.85-89. ISSN 0327-358X. http://dx.doi.org/10.31527/analesafa.2022.33.3.85.
In this paper it is analyzed the propagation of large amplitude Alfvén waves in partially ionized plasmas (PIP) when electronic pressure, Hall and ambipolar terms of Ohm’s law are taken into account. Instead of linearize and develope the perturbation in monochromatic waves, it is proposed that the perturbation satisfy the Alfvén wave’s conditions. As a result, a solution is found that in the fully ionized limit, it coincides with Sallago and Platzeck solution for Alfvén waves in Hall magnetohydrodynamics (doi:10.1029/2003JA009920 ). Furthermore, if electronic pressure and Hall term are null, in the linearized limit, the damping is equal to the one described by De Pontieu, B. Martens, P. C. H. and Hudson, H. S. (doi = 10.1086/322408), if one imposes that the plasma be a perfect conductor.
Palabras clave : Alfvén waves; Plasmas; Partial ionization.