Speaker
Dr
Ernazar Abdikamalov
(Caltech)
Description
Despite decades of effort, the explosion mechanism of core-collapse supernovae is still not well understood. Spherically-symmetric models fail to explode, suggesting that multi-dimensional effects are of crucial importance. Studies in axisymmetry (2D) reveal that the standing accretion shock instability (SASI) and neutrino-driven convection are pivotal ingredients for successful explosions. Axisymmetry, however, is a rather poor approximation of this scenario. 3D studies, on the other hand, are still in their infancy and often employ crude approximations. As a result, the exact role of the SASI and convection is still not well established. In this talk, I will present our 3D general-relativistic simulations of a 27 solar-mass star. We investigate the postbounce hydrodynamics with particular attention to the development and properties of neutrino-driven convection and SASI as well as their role in facilitating explosion.
Primary author
Dr
Ernazar Abdikamalov
(Caltech)
Co-authors
Dr
Casey Meakin
(Los Amalos)
Dr
Christian D. Ott
(Caltech)
Dr
Christian Reisswig
(Caltech)
Dr
Erik Schnetter
(Perimeter)
Dr
Evan O'Connor
(CITA)
Dr
Philipp Moesta
(Caltech)
Dr
Roland Haas
(Caltech)
Dr
Steve Drasco
(Grinnell)
