Orateur
Dr
Nikos Prantzos
(IAP Paris)
Description
I explore the implications of a model in which cosmic rays
are accelerated by the forward shocks of supernovae exploding
within massive star winds, by using realistic stellar models
with mass loss and rotation. Using the same models, I
also show that the idea that the bulk of Galactic cosmic
rays are accelerated in superbubbles fails to reproduce
the key observable of GCR composition, namely the Ne22/Ne20 ratio.
