Jeudi 14 Octobre
Résumé :
Massive stars end their life with the gravitational collapse of their core and
the formation of a neutron star. Their explosion as a supernova depends on
the revival of a spherical accretion shock, located in the inner 200 km and
stalled during a few hundred milliseconds. Numerical simulations suggest that
an asymmetric explosion is induced by a hydrodynamical instability named
SASI. Its non radial character is able to influence the kick and the spin of the
resulting neutron star. I will review the current status of these discoveries and
present the SWASI experiment. This simple shallow water analog of SASI is
designed to illustrate the asymmetric nature of core-collapse supernova.
RECRUTEMENT ACCES DIRECT
Le département de physique
Fête de la Science 2018 