Can gravitational effects damp Alfvén waves?

Details Can gravitational effects damp Alfvén waves? Can gravitational effects damp Alfvén waves?

Apr 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000soph..193..153m&link_type=abstract

Solar Physics, v. 193, Issue 1/2, p. 153-159 (2000).

Physics

4

Scientific paper

We show that Alfvén-gravity waves propagating in a gravitationally stratified atmosphere do not suffer damping as a result of the rate of working of the gravity drift current on the electric field of the waves. A self-consistent treatment involving conservation of total energy, Poynting's theorem, and the rate of working of the various drift currents on the electric field demonstrates that dissipation only arises from `real' dissipative processes such as Ohmic heating or viscous effects, otherwise the system is adiabatic.

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