Charged particle dynamics in X-type neutral points
Abstract
We have developed a novel algorithm for the calculation of test particle orbits in electromagnetic fields. We have applied this to the problem of determining ion and electron orbits in an X-type magnetic configuration, of a type that may occur during reconnection in the corona above a flaring region. Particles in our simulation gain energy through interaction with the normal modes of oscillation of the X-type structure. We find that the addition of a longitudinal magnetic field component to a model proposed by Craig and McClymont [ApJ 371, L41 (1991)] produces a much greater efficiency in accelerating protons. Results of different simulations are presented and the sensitivity of the results to the parameters of the magnetic environment is discussed.
- Publication:
-
Solar Variability: From Core to Outer Frontiers
- Pub Date:
- December 2002
- Bibcode:
- 2002ESASP.506..291H
- Keywords:
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- Solar Flares;
- Particle Acceleration;
- Magnetic Fields