An equivalent-circuit representation of Alfven waves

Details An equivalent-circuit representation of Alfven waves An equivalent-circuit representation of Alfven waves

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...273..659n&link_type=abstract

Astronomy and Astrophysics, Vol. 273, p. 659 (1993)

Astronomy and Astrophysics

Astrophysics

1

Sun: Magnetic Field, Sun: Corona, Plasmas

Scientific paper

Equivalent electric circuit elements of Alfvén waves in solar coronal holes of different temperatures and magnetic field strengths have been studied. In an L-R circuit the resistance is found to increase with magnetic field strength but shows no temperature dependence whereas inductance decreases with magnetic field strength but increases with temperature. As a consequence of this the damping time of L-R circuit decreases with magnetic field but increases with temperature. The purely resistive load impedance of Alfvén waves increases with height in the coronal hole. In case of equivalent transmission line the resistance and inductance increase with temperature but show no magnetic field dependence, whereas capacitance increases with temperature but decreases with the magnetic field strength.

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