The effect of strange quark transition on the shock energy of Type-II supernovae

We have found that the introduction of strange quark phase transition in th e simulation of the evolution of supernovae results in a stronger shock wav e. This is probably due to an increased convective instability in the core. For our range of calculation we found that a first-order strange phase tra nsition can induce explosion in a WW(88) model with a 1.28 M-circle dot iro n core (the upper bound for prompt explosion was about 1.1 M-circle dot). O ur result supports DAI Zi-gao et al.'s thesis that strange quark phase tran sition can raise the probability of supernova explosion.