Nucleosynthesis in core-collapse supernova explosions triggered by a quark-hadron phase transition

Abstract

We explore heavy element nucleosynthesis in the explosion of massive stars which are triggered by a quark-hadron phase transition during the early post bounce phase of core-collapse supernovae. The present study is based on general relativistic radiation hydrodynamics simulations with three-flavor Boltzmann neutrino transport in spherical symmetry, which utilize a quark-hadron hybrid equation of state based on the MIT bag model for strange quark matter. The quark-hadron phase transition inside the stellar core forms a shock wave propagating towards the surface of the proto-neutron star. The shock wave results in an explosion and ejects neutron-rich matter which is piled up or accreting on the proto-neutron star. Later, during the cooling phase, the proto-neutron star develops a proton-rich neutrino-driven wind. We present a detailed analysis of the nucleosynthesis outcome in both neutron-rich and proton-rich ejecta and compare our integrated nucleosynthesis with observations of metal poor stars.

14 pages, 15 figures and 1 table, accepted for publication in ApJ (Issue 757, Oct. 2012)

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Cited by in corpus (18)

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• The r-process nucleosynthesis in the various jet-like explosions of magnetorotational core-collapse supernovae
• Chemistry of the Sagittarius Dwarf Galaxy: a Top-Light IMF, Outflows and the R-Process
• Neutrino-driven wind simulations and nucleosynthesis of heavy elements
• What can be learned from a future supernova neutrino detection?
• Supernova neutrinos and nucleosynthesis
• Nuclear Equation of state for Compact Stars and Supernovae
• Core-collapse Supernova Explosions Driven by the Hadron-quark Phase Transition as a Rare $r$-process Site
• Fast spinning strange stars: possible ways to constrain interacting quark matter parameters
• i-Process Contribution of Rapidly Accreting White Dwarfs to the Solar Composition of First-Peak Neutron-Capture Elements
• Quark deconfinement transition in neutron stars with the field correlator method
• The r-process in Magnetorotational Supernovae
• Challenges in nucleosynthesis of trans-iron elements
• Uncertainties in $\nu$p-process nucleosynthesis from Monte Carlo variation of reaction rates
• The Role of the Hadron-Quark Phase Transition in Core-Collapse Supernovae
• Impact of the first-forbidden $\beta$ decay on the production of $A\sim 195$ r-process peak
• Arguing on entropic and enthalpic first-order phase transitions in strongly interacting matter
• Occurrence of fast neutrino flavor conversions in QCD phase-transition supernovae