期刊
PHYSICAL REVIEW LETTERS
卷 102, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.081101
关键词
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资金
- Swiss National Science Foundation [PP002-106627/1, PP200020-105328/1]
- Helmholtz Research School for Quark Matter Studies
- Italian National Institute for Nuclear Physics
- ExtreMe Matter Institute (EMMI)
- Frankfurt Institute for Advanced Studies
- German Research Foundation (DFG)
- Oak Ridge National Laboratory
- UT-Battelle
- U. S. Department of Energy [DE-AC05-00OR22725]
We explore the implications of the QCD phase transition during the postbounce evolution of core-collapse supernovae. Using the MIT bag model for the description of quark matter, we model phase transitions that occur during the early postbounce evolution. This stage of the evolution can be simulated with general relativistic three-flavor Boltzmann neutrino transport. The phase transition produces a second shock wave that triggers a delayed supernova explosion. If such a phase transition happens in a future galactic supernova, its existence and properties should become observable as a second peak in the neutrino signal that is accompanied by significant changes in the energy of the emitted neutrinos. This second neutrino burst is dominated by the emission of antineutrinos because the electron degeneracy is reduced when the second shock passes through the previously neutronized matter.
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