Emslie, A.G., Miller, J.A. and Brown, J.C. (2004) An explanation for the different locations of electron and ion acceleration in solar flares. Astrophysical Journal, 602(1), L69-L72.
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Abstract
RHESSI observations of the 2002 July 23 solar flare have shown that hard X-rays and gamma rays are produced in different locations within the flare volume. The gamma-ray emission, which is a diagnostic of ion acceleration, appears to originate in the vicinity of large loops, while the hard X-ray emission, a diagnostic of electron acceleration, originates near shorter loops. The tendency for a stochastic acceleration model based on cascading MHD turbulence to favor ion acceleration in larger acceleration regions has been previously noted. Here we evaluate this effect quantitatively and show that such a model is consistent with the RHESSI observations.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Brown, Professor John |
| Authors: | Emslie, A.G., Miller, J.A., and Brown, J.C. |
| Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Astrophysical Journal |
| ISSN: | 0004-637X |
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