Pulse propagation in a magnetic flux tube

Details Pulse propagation in a magnetic flux tube Pulse propagation in a magnetic flux tube

May 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...256..761r&link_type=abstract

Astrophysical Journal, Part 1, vol. 256, May 15, 1982, p. 761-767. Research supported by the Science Research Council.

Physics

81

Magnetic Flux, Plasma Dynamics, Pulsed Radiation, Solar Magnetic Field, Solar Physics, Klein-Gordon Equation, Photosphere, Propagation Velocity, Wave Fronts

Scientific paper

The linear development of a pulse as it propagates adiabatically along an isothermal magnetic flux tube embedded in a gravitationally stratified atmosphere is studied. It is shown that, for a quiescent environment, longitudinal disturbances in the tube are governed by an equation of the Klein-Gordon type. An impulsively generated disturbance results in a wave front propagating at the subsonic and subAlfvenic tube speed; the wave front trails a wake oscillating at the tube frequency. The results are illustrated for solar photospheric conditions.

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