MHD Waves in the Neighbourhood of a 2D X-Type Neutral Point

Details MHD Waves in the Neighbourhood of a 2D X-Type Neutral Point MHD Waves in the Neighbourhood of a 2D X-Type Neutral Point

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.547..537m&link_type=abstract

Proceedings of 'SOHO 13 - Waves, Oscillations and Small-Scale Transient Events in the Solar Atmosphere: A Joint View from SOHO a

Computer Science

2

Sun, Refraction, Magnetoacoustic Waves

Scientific paper

A linear, fast magnetoacoustic wave is generated at a boundary and travels towards an magnetic X-type neutral point. Due to refraction, the wave wraps itself around the null point, causing a large current to accumulate there. Simulations show that the current build up is exponential in time. The numerical simulations are in good agreement with analytic work based on a WKB solution obtained by the method of characteristics.

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