Non-inductive current driven by Alfvén waves in solar coronal loops

Details Non-inductive current driven by Alfvén waves in solar coronal loops Non-inductive current driven by Alfvén waves in solar coronal loops

Aug 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996soph..167..203e&link_type=abstract

Solar Physics, Volume 167, Issue 1-2, pp. 203-216

Physics

10

Scientific paper

It has been shown that Alfvén waves can drive non-inductive current in solar coronal loops via collisional or collisionless damping. Assuming that all the coronal-loop density of dissipated wave power (W= 10-3 erg cm-3 s-1), which is necessary to keep the plasma hot, is due to Alfvén wave electron heating, we have estimated the axial current density driven by Alfvén waves to be ≈ 103 105 statA cm-2. This current can indeed support the quasi-stationary equilibrium and stability of coronal loops and create the poloidal magnetic field up to B θ≈1-5 G.

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