Core collapse supernovae in the QCD phase diagram

Abstract

We compare two classes of hybrid equations of state with a hadron-to-quark matter phase transition in their application to core collapse supernova simulations. The first one uses the quark bag model and describes the transition to three-flavor quark matter at low critical densities. The second one employs a Polyakov-loop extended Nambu-Jona-Lasinio (PNJL) model with parameters describing a phase transition to two-flavor quark matter at higher critical densities. These models possess a distinctly different temperature dependence of their transition densities which turns out to be crucial for the possible appearance of quark matter in supernova cores. During the early post bounce accretion phase quark matter is found only if the phase transition takes place at sufficiently low densities as in the study based on the bag model. The increase critical density with increasing temperature, as obtained for our PNJL parametrization, prevents the formation of quark matter. The further evolution of the core collapse supernova as obtained applying the quark bag model leads to a structural reconfiguration of the central proto-neutron star where, in addition to a massive pure quark matter core, a strong hydrodynamic shock wave forms and a second neutrino burst is released during the shock propagation across the neutrinospheres. We discuss the severe constraints in the freedom of choice of quark matter models and their parametrization due to the recently observed 2 solar mass pulsar and their implications for further studies of core collapse supernovae in the QCD phase diagram.

19 pages, 4 figures, CPOD2010 conference proceeding

References in corpus (12)

• Shapiro delay measurement of a two solar mass neutron star
• Color superconductivity in dense quark matter
• Delayed neutrino-driven supernova explosions aided by the standing accretion-shock instability
• Signals of the QCD phase transition in core-collapse supernovae
• Quark Matter In Massive Compact Stars
• Modern compact star observations and the quark matter equation of state
• The Massive Pulsar PSR J1614-2230: Linking Quantum Chromodynamics, Gamma-ray Bursts, and Gravitational Wave Astronomy
• Special Relativistic Simulations of Magnetically-dominated Jets in Collapsing Massive Stars
• Core-collapse supernova explosions triggered by a quark-hadron phase transition during the early post-bounce phase
• The quark core of protoneutron stars in the phase diagram of quark matter
• Hybrid neutron stars based on a modified PNJL model
• Study of chiral and deconfinement transition in lattice QCD with improved staggered actions

Cited by in corpus (15)

• Explosion Mechanisms of Core-Collapse Supernovae
• Equations of state for supernovae and compact stars
• Symmetry energy impact in simulations of core-collapse supernovae
• The influence of strong magnetic fields on proto-quark stars
• Impacts of Rotation on Three-dimensional Hydrodynamics of Core-collapse Supernovae
• Evolution of proto-neutron stars with the hadron-quark phase transition
• The Deconfinement Phase Transition in Proto-Neutron-Star Matter
• Charged pion condensation and duality in dense and hot chirally and isospin asymmetric quark matter in the framework of NJL${}_2$ model
• Hot third family of compact stars and the possibility of core-collapse supernova explosions
• The Role of the Hadron-Quark Phase Transition in Core-Collapse Supernovae
• High-mass twins & resolution of the reconfinement, masquerade and hyperon puzzles of compact star interiors
• Supernova Equation of State with an extended SU(3) Quark-Meson Model
• A Hydrodynamical Study on the Conversion of Hadronic Matter to Quark Matter: I. Shock-Induced Conversion
• Towards generating a new supernova equation of state: A systematic analysis of cold hybrid stars
• Hybrid isentropic twin stars