Physics
Scientific paper
Nov 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980soph...68...71w&link_type=abstract
Solar Physics, vol. 68, Nov. 1980, p. 71-85
Physics
33
Magnetic Flux, Magnetic Relaxation, Photosphere, Solar Atmosphere, Solar Magnetic Field, Vertical Motion, Damping, Energy Dissipation, Phase Velocity, Radiative Transfer, Solar Physics, Wave Attenuation
Scientific paper
The effect of radiative relaxation on the propagation of waves in an intense magnetic flux tube embedded in a uniform atmosphere is investigated with reference to radiative damping in the upper photosphere of the sun. Assuming Newton's law of cooling, it is shown that the radiative energy loss leads to wave damping. Both the damping per wavelength and the damping per period reach maximum value when the sound and radiative time scales are comparable. In addition, consideration is given to the effect of radiative relaxation on the propagation of waves in an intense magnetic flux tube embedded in a stratified atmosphere. The radiative energy loss leads to a decrease in the vertical phase velocity of the waves and to a damping of the amplitude for these waves with frequencies greater than the adiabatic value of the tube cutoff frequency.
Roberts Barney B.
Webb Richard A.
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