A Hydrodynamical Study on the Conversion of Hadronic Matter to Quark Matter: I. Shock-Induced Conversion

Abstract

We study transitions of hadronic matter (HM) to 3-flavor quark matter (3QM) locally, regarding the conversion processes as combustion and describing them hydrodynamically. Not only the jump condition on both sides of the conversion front but the structures inside the front are also considered by taking into account what happens during the conversion processes on the time scale of weak interactions as well as equations of state (EOS's) in the mixed phase. Under the assumption that HM is metastable with their free energies being larger than those of 3QM but smaller than those of 2-flavor quark matter (2QM), we consider the transition via 2QM triggered by a rapid density rise in a shock wave. Based on the results, we discuss which combustion modes (strong/weak detonation) may be realized. HM is described by an EOS based on the relativistic mean field theory and 2, 3QM's are approximated by the MIT bag model. We demonstrate for a wide range of bag constant and strong coupling constant in this combination of EOS's that the combustion may occur in the so-called endothermic regime, in which the Hugoniot curve for combustion runs below the one for the shock wave in P-V plane, and which has no terrestrial counter part. We find that strong detonation always occurs. Depending on the EOS of quark matter (QM) as well as the density of HM and the Mach number of the detonation front, deconfinement from HM to 2QM is either completed or not completed in the shock wave. In the latter case, which is more likely if the EOS of QM ensures that deconfinement occurs above the nuclear saturation density and that the maximum mass of cold quark stars is larger than two solar mass, the conversion continues further via the mixing state of HM and 3QM on the time scale of weak interactions.

arXiv comment44 pages, 18 figures, accepted for publication in PRD

References in corpus (33)

• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• Signals of the QCD phase transition in core-collapse supernovae
• Quark Matter In Massive Compact Stars
• Relativistic Equation of State for Core-Collapse Supernova Simulations
• Quark deconfinement and implications for the radius and the limiting mass of compact stars
• Can very compact and very massive neutron stars both exist?
• Color-flavor locked strange matter
• Core-collapse supernova explosions triggered by a quark-hadron phase transition during the early post-bounce phase
• Three-dimensional hydrodynamic simulations of the combustion of a neutron star into a quark star
• Burning of an hadronic star into a quark or a hybrid star
• Hybrid Stars in a Strong Magnetic Field
• Effects of hyperons on the dynamical deconfinement transition in cold neutron star matter
• High-density QCD pairing in compact star structure
• Lennard-Jones quark matter and massive quark stars
• Combustion of a neutron star into a strange quark star: The neutrino signal
• Numerical Simulation of the Hydrodynamical Combustion to Strange Quark Matter
• Results of the Search for Strange Quark Matter and Q-balls with the SLIM Experiment
• Can stellar mass black holes be quark stars?
• The conversion of Neutron star to Strange star : A two step process
• Self-bound CFL stars in binary systems : are they "hidden" among the black hole candidates?
• Deconfinement and color superconductivity in cold neutron stars
• A note on the discovery of a 2M_\odot pulsar
• Strange quark matter in explosive astrophysical systems
• A Hydrodynamical Analysis of the Burning of a Neutron Star
• Core collapse supernovae in the QCD phase diagram
• Phase transitions in neutron star and magnetars and their connection with high energetic bursts in astrophysics
• Phase transition in compact stars due to a violent shock
• Strangelet spectra from type II supernovae
• The birth of strange stars: kinetics, hydrodynamics and phenomenology of supernovae and GRBs
• On the Possibility of Combustion of Neutrons into Strange Quark Matter
• Astro-quark matter: a challenge facing astroparticle physics
• Signal of quark deconfinement in thermal evolution neutron stars with deconfinement heating

Cited by in corpus (9)

• Strange quark matter and quark stars with the Dyson-Schwinger quark model
• Numerical Simulation of the Hydrodynamical Combustion to Strange Quark Matter in the Trapped Neutrino Regime
• Combustion adiabat and the maximum mass of a quark star
• A Hydrodynamical Study on the Conversion of Hadronic Matter to Quark Matter: II. Diffusion-Induced Conversion
• Effect of magnetic field on the burning of a neutron star
• The Structure of the Hadron-Quark Reaction Zone
• The Superluminous (Type I) Supernova ASASSN-15lh : A case for a Quark-Nova inside an Oxygen-type Wolf-Rayet supernova remnant
• Two-flavor hybrid stars with the Dyson-Schwinger quark model
• Magnetized taub adiabat and the PT of magnetic neutron stars