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| Paper: |
The Effects of Including Non-Thermal Particles in Flare Loop Models |
| Volume: |
455, 4th Hinode Science Meeting: Unsolved Problems and Recent Insights |
| Page: |
199 |
| Authors: |
Reeves, K. K.; Winter, H. D.; Larson, N. L. |
| Abstract: |
In this work, we use HyLoop (Winter et al. 2011), a loop model
that can incorporate the effects of both MHD and non-thermal particle
populations, to simulate soft X-ray emissions in various situations.
First of all, we test the effect of acceleration location on the
emission in several XRT filters by simulating a series of post flare
loops with different injection points for the non-thermal particle
beams. We use an injection distribution peaked at the loop apex to
represent a direct acceleration model, and an injection distribution
peaked at the footpoints to represent the Alfvén wave interaction
model. We find that footpoint injection leads to several early peaks
in the apex-to-footpoint emission ratio. Second, we model a loop
with cusp-shaped geometry based on the eruption model developed byLin & Forbes (2000) and Reeves & Forbes (2005a), and find
that early in the flare, emission in the loop footpoints is much
brighter in the XRT filters if non-thermal particles are included in
the calculation. Finally, we employ a multi-loop flare model to
simulate thermal emission and compare with a previous model where a
semi-circular geometry was used (Reeves et al. 2007). We
compare the Geostationary Operational Environmental Satellite
(GOES) emission from the two models and find that the cusp-shaped
geometry leads to a smaller GOES class flare. |
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