Comparisons of Three Solar Eruptive Gamma-Ray Events
Abstract
New analysis will be presented of observations made with the Ramaty High Energy Solar Spectroscopic Imager (RHESSI) of the X7.1 flare on 20 January 2005 for comparison with the similar X8.2 event on 10 September 2017 and the behind-the limb event on 1 September 2014. RHESSI images for the 2005 event show strong coronal X-ray emission at energies in excess of 500 keV, even in the presence of footpoint emission at the same energies. These will be compared with images of the 2017 and 2014 events, where the footpoints were mostly occulted behind the west limb. Each of these three events have gamma-ray emissions at energies extending above 60 MeV, measured with the SOlar Neutrons and Gamma-rays instrument (SONG) on CORONAS-F in 2005 and with the Large Area Telescope (LAT) on Fermi for the 2014 and 2017 events.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2018
- Bibcode:
- 2018AGUFMSH11D2896D
- Keywords:
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- 7519 Flares;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMYDE: 7526 Magnetic reconnection;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMYDE: 7845 Particle acceleration;
- SPACE PLASMA PHYSICSDE: 7984 Space radiation environment;
- SPACE WEATHER