Numerical simulation of coronal heating by resonant absorption of Alfvén waves
Abstract
The heating of coronal loops by resonant absorption of Alfvén waves is studied in compressible, resistive magnetohydrodynamics. The loops are approximated by straight cylindrical, axisymmetric plasma columns and the incident waves which excite the coronal loops are modelled by a periodic external driver. The stationary state of this system is determined with a numerical code based on the finite element method. Since the power spectrum of the incident waves is not well known, the intrinsic dissipation is computed. The intrinsic dissipation spectrum is independent of the external driver and reflects the intrinsic ability of the coronal loops to extract energy from incident waves by the mechanism of resonant absorption.
- Publication:
-
Solar Physics
- Pub Date:
- March 1989
- DOI:
- 10.1007/BF00150014
- Bibcode:
- 1989SoPh..123...83P
- Keywords:
-
- Computerized Simulation;
- Coronal Loops;
- Magnetohydrodynamic Waves;
- Magnetohydrodynamics;
- Solar Corona;
- Absorption;
- Acoustic Propagation;
- Energy Dissipation;
- Finite Element Method;
- Plasma Heating;
- Solar Heating;
- Solar Physics;
- Finite Element Method;
- Incident Wave;
- Dissipation Rate;
- Solar Corona;
- Numerical Code