Abstract

Session
Energetic Particles in the Heliosphere: from the Sun to Planetary Atmospheres
Title of Abstract
Characteristics of solar particle acceleration in a non-flaring active region
Author
James Threlfall
Co-Authors
Philippe-André Bourdin, Thomas Neukirch, Clare Parnell
Institution
University of St Andrews
Summary (maximum 250 words)
We present first results of test particle orbit calculations based on snapshots of an observationally driven MHD model of a non-flaring slowly-evolving solar active region [detailed in Bourdin et al., A&A 555, A123 (2013)]. The test particle (electron and proton) orbits are calculated using the relativistic guiding centre approximation. Initial results suggest particles can be accelerated to non-thermal energies due to local reconnection electric fields, despite the lack of flare-like behaviour. We discuss the implications of these results and highlight several characteristic types of orbit behaviour within the simulated active region, in order to better understand the plasma response in such active region models at kinetic scales.
Attachment

Schedule

Session Time
09:00 - 10:30
Talk start
09:40
Day
Monday

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