Heating of solar coronal loops by resonant absorption of Alfven waves

Details Heating of solar coronal loops by resonant absorption of Alfven waves Heating of solar coronal loops by resonant absorption of Alfven waves

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...332..476g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 332, Sept. 1, 1988, p. 476-498.

Astronomy and Astrophysics

Astrophysics

82

Coronal Loops, Magnetohydrodynamic Waves, Plasma Heating, Solar Corona, Absorption Spectra, Atmospheric Models, Energy Absorption, Photosphere, Plasma Resonance

Scientific paper

For magnetic field and plasma parameters typical of solar coronal loops, plasma heating by resonant absorption of Alfvén waves is shown to be highly efficient in the frequency range including the photospheric granulation and p-modes. In this study, the loop structure in modeled by a class of axisymmetric force-free equilibria of a long straight cylinder, approximating a large aspect ratio loop. For a given loop equilibrium, the fractional absorption spectrum is calculated. Examples are given for four different loop equilibria (two density profiles × two magnetic field profiles).

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