Speaker
Description
Solar eruptive events produce flares in the corona and coronal mass ejections (CMEs). Flares radiation producing particles (RPPs) are believed to be accelerated in the coronal reconnection, while the acceleration of solar energetic particles (SEPs) is assumed to occur in the CME driven shocks. However, there is considerable observations, in particular in impulsive-prompt events, indicating a close connection between these two processes. Recent observations of long duration gamma-rays from many flares, in particular, three behind-the-limb (BTL) flares, has provided new information on this connection.
I will review some earlier observations relevant for this connection and use a detailed modeling of the Fermi flares to shed further light on this connection. The interpretation of these data will be based on a hybrid stochastic acceleration at the flare site, and re-acceleration of flare particles injected into the CME environment. I will emphasize an important aspect that plays a central role in this scenario, which is the processes of escape of accelerated particles up and down from flare site and from downstream and upstream of the CME.
