Particle Acceleration in Stressed Coronal Magnetic Fields | Zendy

Rim Turkmani | Zendy; L. Vlahos | Zendy; K. Galsgaard | Zendy; P. J. Cargill | Zendy; H. Isliker | Zendy

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Particle Acceleration in Stressed Coronal Magnetic Fields

Author(s) -

Rim Turkmani,

L. Vlahos,

K. Galsgaard,

P. J. Cargill,

H. Isliker

Publication year - 2005

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/428395

Subject(s) - physics , particle acceleration , acceleration , coronal plane , magnetic field , astronomy , astrophysics , coronal mass ejection , nanoflares , coronal loop , classical mechanics , plasma , solar wind , nuclear physics , medicine , quantum mechanics , radiology

This letter presents an analysis of particle acceleration in a model of the complex magnetic field environment in the flaring solar corona. A slender flux tube, initially in hydrodynamic equilibrium, is stressed by random photospheric motions. A 3-D MHD code is used to follow the stochastic development of tran- sient current sheets. These processes generate a highly fragmented electric field, through which particles are tracked using a relativistic test particle code. It is shown that both ions and electrons are accelerated readily to relativistic energies in times of order 10−2 s for electrons and 10−1 for protons forming power law distributions in energy.

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