奇异夸克相变对II型超新星激波能量的影响

摘要

在模拟超新星演化时, 考虑非奇异奇异夸克相变因素,与没有考虑奇异相变的情况相比, 得到了更强的激波.这可能是奇异相变增加了星核区对流不稳定性所致. 在本文的计算环境里,一阶奇异夸克相变的结果使具有1.28 M铁星核的WW(88)模型爆发,打破了瞬发机制只能使约1.1 M铁星核模型爆发的上限,并支持了戴子高等人所作出的奇异夸克相变能提高超新星爆发机会的论断.%We have found that the introduction of strange quark phase transition in rnthe simulation of the evolution of supernovae results in rna stronger shock wave. This is probably due to an increased rnconvective instability in the core. For our range of calculation rnwe found that a firstorder strange phase transition can induce rnexplosion in a WW(88) model with a 1.28 M iron corern(the upper bound for prompt explosion was about 1.1 M). Our result rnsupports DAI Zigao et al.'s thesis that strange quark phase rntransition can raise the probability of supernova explosion.