出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present a series of axisymmetric, magneto-hydrodynamical simulations for the rotational core
collapse of a massive star accompanying the QCD phase transition. To elucidate the implications
of a phase transition against a supernova, we investigate the waveforms of gravitational wave
derived from the quadrupole formula that includes the contributions from the electromagnetic
fields. We adopt a phenomenological equation of state above the nuclear matter density r0 that
includes two parameters to change the hardness of the matter before the transition. We assume
that the first order phase transition is the conversion of bulk nuclear matter to a chirally symmetric
quark-gluon phase described by the MIT bag model. In most models with the phase transition,
the first peak amplitudes are higher by a few percents to nearly ten percents than those without the
transition. However, it is found that under the condition of the very strong differential rotation,
the height of the peak becomes lower by several percents if the phase transition is included. In
the paper, we show the typical models of our calculations.
