[Triumf-seminars] TRIUMF Colloquium today at 11:00

postmaster at admin.triumf.ca postmaster at admin.triumf.ca
Mon Feb 23 05:00:04 PST 2009


Date/Time: Mon 2009-02-23 at 11:00

Location:  Auditorium          

Speaker:   Matthias Liebendoerfer (University of Basel)

Title:     Supernova matter: Conditions, models and the explosion mechanism

Abstract: In the interior of core-collapse supernovae, temperatures and densities largely exceed the range that is easily accessible by terrestrial experiments.  With the improving sensitivity of neutrino and gravitational wave detectors, we steadily increase the chances to obtain a deep view into the heart of a close-by supernova explosion. After an introduction to core-collapse supernovae and their possible explosion mechanisms I summarise four different projects that are currently carried out in Basel: The development of neutrino physics approximations in order to enable efficient three-dimensional models with spectral neutrino transport; the impact of an early QCD phase transition on the neutrino signal; studies of the gravitational wave emission from preliminary three-dimensional simulations of stellar core collapse; and the investigation of the nup-process, which determines the nucleosynthesis in proton-rich ejecta. These projects represent four key observables of the explosion mechanism: Explosion asymmetries, the neutrino signal, the emission of gravitational waves, and the nucleosynthesis.

Stimulants will be available 15 minutes before the talk.

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