Particle Acceleration in the Presence of Weak Turbulence at an X-Type Neutral Point

Burge, C. A.; Petkaki, P.; MacKinnon, A. L.. 2012 Particle Acceleration in the Presence of Weak Turbulence at an X-Type Neutral Point. Solar Physics, 280 (2). 575-590. 10.1007/s11207-012-9963-2

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Abstract/Summary

We simulate the likely noisy situation near a reconnection region by superposing many 2D linear reconnection eigenmodes. The superposition of modes on the steady state X-type magnetic field creates multiple X- and O-type neutral points close to the original neutral point and so increases the size of the non-adiabatic region. We study test particle trajectories of initially thermal protons in these fields. Protons become trapped in this region and are accelerated by the turbulent electric field to energies up to 1 MeV in time scales relevant to solar flares. Higher energies are achieved due to the interaction of particles with increasingly turbulent electric and magnetic fields.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1007/s11207-012-9963-2
Programmes:	BAS Programmes > Other
ISSN:	0038-0938
Additional Keywords:	Flares; Energetic particles; Energetic particles; Acceleration; Energetic particles; Protons; Turbulence Magnetic reconnection; Theory
NORA Subject Terms:	Physics
Date made live:	26 Nov 2012 12:49 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/20437

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