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Coronal loop heating by Alfvén waves

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Abstract

The excitation and dissipation of global and surface Alfvén waves and their conversion into kinetic Alfvén waves have been analyzed for solar coronal loops using a cylindrical model of a magnetized plasma. Also the optimal conditions for coronal loop heating regimes with density of dissipated power ≈103 erg cm−3 s−1 by the new scheme named combined Alfvén wave resonance are found. Combined Alfvén wave heating regime appears when the global Alfvén wave is immersed into the Alfvén continuum with the condition of not-so-sharp distribution of axial current.

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Instituto de Matemática, Universidade Federal Fluminense, Niterói, RJ, Brazil

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De Azevedo, C.A., Elfimov, A.G. & De Assis, A.S. Coronal loop heating by Alfvén waves. Sol Phys 153, 205–215 (1994). https://doi.org/10.1007/BF00712502

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