Current drive by Alfven waves in the solar coronal loops
Abstract
It was shown that Alfven waves can drive non inductive current in Solar coronal loops via Landau damping. Assuming that all the coronal loop density of dissipated RF power (P = 10-3 erg/cm3s-1) necessary to keep the plasma hot is due to Alfven electron heating, we have estimated the axial current drive density to be (jz) approximately equal 103 stA/cm2. This current can indeed support the quasi-stationary equilibrium of coronal loops and create the observed poloidal magnetic field of B approximately equal to 10G.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- January 1994
- Bibcode:
- 1994STIN...9622800E
- Keywords:
-
- Coronal Loops;
- Current Density;
- Landau Damping;
- Magnetohydrodynamic Waves;
- Plasma Currents;
- Plasma Equilibrium;
- Magnetic Fields;
- Plasma Heating;
- Solar Wind;
- Eigenvalues;
- Solar Physics