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Gamma-Ray Solar Flares and In Situ Particle Acceleration

Published online by Cambridge University Press:  24 July 2018

Alexei Struminsky Open the ORCID record for Alexei Struminsky [Opens in a new window]
Alexei Struminsky*
Affiliation:
Space Research Institute, Profsoyuznaya st., 84/32, 117997, Moscow, Russian Federation email: astrum@iki.rssi.ru
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Abstract

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At present two concurrent paradigms of solar energetic particle (SEP) origin exist: acceleration directly in the flare site or by the shock wave of coronal mass ejection (CME). Active discussions on a relative role of flares and coronal mass ejections for SEP acceleration and propagation are continuous until now. In my opinion only future observations of solar high energy γ–emission with better spectral, spatial and temporal resolution may clarify this issue. In my report I discuss possible signatures of the flare and shock acceleration processes. What is a picture provided by the current instruments? What can we expect to observe with a perfect instrument in high energy gamma rays in one or another case on a time scale of impulsive and long decay flare phases?

Keywords

Sun: activitySun: flaresSun: x-rays and gamma-raysSun: particle emission
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S335: Space Weather of the Heliosphere: Processes and Forecasts , July 2017 , pp. 43 - 48
Copyright
Copyright © International Astronomical Union 2018 

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