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arXiv · 1112.6328

Strange matter in core-collapse supernovae

I. Sagert·T. Fischer·M. Hempel·G. Pagliara·J. Schaffner-Bielich·F. -K. Thielemann·M. Liebendörfer
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Abstract

We discuss the possible impact of strange quark matter on the evolution of core-collapse supernovae with emphasis on low critical densities for the quark-hadron phase transition. For such cases the hot proto-neutron star can collapse to a more compact hybrid star configuration hundreds of milliseconds after core-bounce. The collapse triggers the formation of a second shock wave. The latter leads to a successful supernova explosion and leaves an imprint on the neutrino signal. These dynamical features are discussed with respect to their compatibility with recent neutron star mass measurements which indicate a stiff high density nuclear matter equation of state.

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I. Sagert, T. Fischer, M. Hempel, G. Pagliara, J. Schaffner-Bielich, F. -K. Thielemann, M. Liebendörfer. 2011-12-29. Strange matter in core-collapse supernovae. https://doi.org/10.5506/aphyspolb.43.741

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