Radiation effects on the MHD wave behavior in the solar corona

The effect of radiation losses on the dispersion and damping of magnetohydrodynamic waves in the solar corona is studied. The conditions are determined under which radiation losses are most appreciable. A damping of kink modes of coronal loops with plasma temperatures within 10 6 –10 6.3 K and 10 6....

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Bibliographic Details
Published in:Solar system research 2013, Vol.47 (1), p.50-57
Main Authors: Mikhalyaev, B. B., Veselovskii, I. S., Khongorova, O. V.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Astroparticles
Astrophysics and Cosmology
Corona
Fluid mechanics
Magnetic fields
Observations and Techniques
Physics
Physics and Astronomy
Planetology
Radiative transfer
Solar physics
Sun
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Summary:The effect of radiation losses on the dispersion and damping of magnetohydrodynamic waves in the solar corona is studied. The conditions are determined under which radiation losses are most appreciable. A damping of kink modes of coronal loops with plasma temperatures within 10 6 –10 6.3 K and 10 6.3 –10 7 K are compared. It is concluded that the radiation damping dominates in the temperature range 10 6 –10 6.3 K, which can cause the observed fast damping of kink oscillations of coronal loops. Radiation losses should be taken into account in full magnetohydrodynamic equations with radiative transfer.
ISSN:0038-0946
1608-3423
DOI:10.1134/S0038094612060056