I. Sagert, T. Fischer, M. Hempel, G. Pagliara, J. Schaffner-Bielich, F. -K. Thielemann, M. Liebendörfer
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.
View original:
http://arxiv.org/abs/1112.6328
No comments:
Post a Comment