Abstract
Because solar (and, most likely, stellar) surface magnetic fields are highly inhomogeneous, and show concentration into ‘flux tube’ structures, the wave energy generated in stellar convection zones may be largely carried away by flux tube waves, which then become important sources for the heating of the outer atmospheric layers. We report calculations for longitudinal tube waves generated in magnetic flux tubes embedded in an otherwise magnetic field-free, turbulent, and stratified medium; we find that such waves are generated by dipole emission, and that the generation efficiency is a strong function of the magnetic field strength. We also present wave flux calculations for magnetic flux tubes embedded in the solar convective zone; the main result is that the longitudinal tube wave fluxes are at least 2 orders of magnitude too low to play a significant role in the heating of the solar chromosphere.
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Musielak, Z.E., Rosner, R., Ulmschneider, P. (1987). Magnetic flux tubes as sources of wave generation. In: Linsky, J.L., Stencel, R.E. (eds) Cool Stars, Stellar Systems, and the Sun. Lecture Notes in Physics, vol 291. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-18653-0_110
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DOI: https://doi.org/10.1007/3-540-18653-0_110
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