Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...339..215c&link_type=abstract
Astronomy and Astrophysics, v.339, p.215-224 (1998)
Astronomy and Astrophysics
Astrophysics
11
Mhd, Plasmas, Waves, Sun: Atmosphere, Sun: Magnetic Fields
Scientific paper
The influence of a stationary mass flow on driven resonant MHD waves is studied for incoming slow and fast magnetosonic waves with frequencies in the slow and the Alfven continua. In addition to the classic resonant absorption already present in a static plasma, driven resonant waves can also undergo over-reflection. Depending on the strength of the equilibrium flow a variety of resonant MHD wave phenomena comes into existence. The resonant absorption and over-reflection are found for both, slow and fast magnetosonic waves. The main result of this paper is that even relatively slow flows can have a drastic effect on the behaviour of MHD waves. This is in particular true under solar conditions.
Cadez Vladimir M.
Csik A. T.
Goossens Marcel
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