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arXiv · 1402.2927

Loss cone evolution and particle escape in collapsing magnetic trap models in solar flares

Solmaz Eradat Oskoui·Thomas Neukirch·Keith James Grady
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Abstract

Collapsing magnetic traps (CMTs) have been suggested as one possible mechanism responsible for the acceleration of high-energy particles during solar flares. An important question regarding the CMT acceleration mechanism is which particle orbits escape and which are trapped during the time evolution of a CMT. While some models predict the escape of the majority of particle orbits, other more sophisticated CMT models show that, in particular, the highest-energy particles remain trapped at all times. The exact prediction is not straightforward because both the loss cone angle and the particle orbit pitch angle evolve in time in a CMT. Our aim is to gain a better understanding of the conditions leading to either particle orbit escape or trapping in CMTs.

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Solmaz Eradat Oskoui, Thomas Neukirch, Keith James Grady. 2014-02-12. Loss cone evolution and particle escape in collapsing magnetic trap models in solar flares. https://doi.org/10.1051/0004-6361/201322519

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