Orateur
Dr
Kei Kotake
(National Astronomical Observatory of Japan)
Description
Core-collapse supernovae are dramatic explosions marking the
catastrophic end of massive stars. Optical outbursts begin only hours
after the actual onset of the catastrophe in the very center of the star.
There the central iron core collapses to a neutron star thereby liberating
the gravitational binding energy which causes the supernova explosion.
The only means to get direct information about the supernova "engine"
is from observations of neutrinos emitted by the forming neutron star,
and through gravitational waves which are produced when the hydrodynamic
flow or the neutrino flux is not perfectly symmetric.
After reviewing the basic physics of core collapse supernovae,
the results of our recent simulations about
such aspherical processes and the resulting neutrino and
gravitational-wave signals will be discussed.
Auteur principal
Dr
Kei Kotake
(National Astronomical Observatory of Japan)
