SESZIONE DI TORINO
I will discuss the possible influence of quark deconfinement inside compact stars on Supernova explosions and on Gamma Ray Bursts. A huge amount of energy is released due to quark deconfinement and, what is even more important, a large neutrino luminosity can be produced by the deconfinement transition. The most striking feature of core-collapse explosions in which quark deconfinement takes place is the possible time-separation between the moment of the collapse and the moment of quark deconfinement. This time separation can be particularly large if the compact stellar object is rapidly rotating. In this way it is possible to interpret the neutrino signals of SN1987a as a first neutrino pulse associated with deleptonization and a second pulse associated with quark deconfinement.

DATA: 19-11-2008