Speaker
Shinya Wanajo
(Excellence Cluster Universe, TU Muenchen)
Description
Recent hydrodynamic simulations of core-collapse supernovae with
accurate neutrino transport suggest that the bulk of the
neutrino-heated ejecta is proton rich, in which the production of some
interesting proton-rich nuclei is expected. However, there are a
number of beta-waiting points that prevent the production of heavy
proton-rich nuclei beyond iron in explosive events such as
core-collapse supernovae. Recent studies have shown that the
rp-process (or nup-process) takes place by bypassing these waiting
points via neutron-capture reactions with the help of neutrino capture
on free nucleons during the early phase of the neutrino-driven winds
of core-collapse supernovae. I will discuss on the role of the
supernova dynamics as well as the sensitivities of some key nuclear
reactions to the efficiency of the nup-process.
Author
Shinya Wanajo
(Excellence Cluster Universe, TU Muenchen)