Effects of color superconductivity on the nucleation of quark matter in neutron stars

Abstract

We study the nucleation of quark matter drops at the center of cold deleptonized neutron stars. This is relevant in the determination of the critical mass $M_{cr}$ of hadronic stars above which it is possible a transition to a quark star (strange or hybrid). We investigate the dependence of $M_{cr}$ upon the parameters of the quark model (the Bag constant $B$, the pairing gap $\Delta$, and the surface tension $\sigma$ of the quark-hadron interphase) and for different parametrization of the hadronic equations of state. The dependence of $M_{cr}$ on $B$, $\Delta$ and $\sigma$ is mild if the parameters of the quark model correspond to hybrid stars, and strong if they correspond to strange stars. For a large part of the parameter space corresponding to hybrid stars, the critical mass is very close (but smaller than) the maximum mass of hadronic stars, and therefore compatible with a "mixed" population of compact stars (pure hadronic up to the critical mass and hybrid above the critical mass). For very large $B$ the critical mass is never smaller than the maximum mass of hadronic stars, implying that quark stars cannot form through the here studied mechanism. The energy released in the conversion is $3\times 10^{52}$ erg - $4\times 10^{53}$ erg, i.e. sufficient to power a gamma ray burst.

Version to appear in Astronomy & Astrophysics

References in corpus (20)

• NJL-model analysis of dense quark matter
• Color superconducting quark matter
• Quark deconfinement and implications for the radius and the limiting mass of compact stars
• Gamma Ray Bursts from delayed collapse of neutron stars to quark matter stars
• Color-flavor locked strange matter
• Conversion of neutron stars to strange stars as the central engine of gamma-ray bursts
• Effects of color superconductivity on the structure and formation of compact stars
• Effects of hyperons on the dynamical deconfinement transition in cold neutron star matter
• High-density QCD pairing in compact star structure
• Charge screening effect in the hadron-quark mixed phase
• Nucleation of quark matter bubbles in neutron stars
• Gamma-Ray Bursts from quark stars
• Fireballs from Quark Stars in the CFL Phase: Application to Gamma Ray Bursters
• Deconfinement and color superconductivity in cold neutron stars
• Asymmetric core combustion in neutron stars and a potential mechanism for gamma ray bursts
• Nucleation of quark matter in neutron stars cores
• Curvature energy effects on strange quark matter nucleation at finite density
• Quark deconfinement and neutrino trapping in compact stars
• QCD phase transition in rotaing neutron star, Neutrino beaming and Gamma-ray bursters
• Can we see the hadron-quark transition happening in neutron stars?

Cited by in corpus (47)

• Equations of state for supernovae and compact stars
• Can very compact and very massive neutron stars both exist?
• Phase transition effects on the dynamical stability of hybrid neutron stars
• Was GW190814 a black hole -- strange quark star system?
• A new temperature dependent hyperonic equation of state: application to rotating neutron star models and I-Q-relations
• Deconfinement phase transition in hybrid neutron stars from the Brueckner theory with three-body forces and a quark model with chiral mass scaling
• Dark matter, neutron stars and strange quark matter
• Phases of dense matter in compact stars
• Surface tension and curvature energy of quark matter in the NJL model
• Thermodynamic consistency, quark mass scaling, and properties of strange matter
• Stability of CFL cores in Hybrid Stars
• Quark matter nucleation in neutron stars and astrophysical implications
• The influence of strong magnetic fields on proto-quark stars
• Combustion of a neutron star into a strange quark star: The neutrino signal
• Quark matter nucleation in hot hadronic matter
• Hyperons in neutron stars and supernova cores
• Phase transitions in neutron stars and their links to gravitational waves
• Nucleation of quark matter in protoneutron star matter
• Constraining strangeness in dense matter with GW170817
• Fast spinning strange stars: possible ways to constrain interacting quark matter parameters
• From quark drops to quark stars: some aspects of the role of quark matter in compact stars
• Dense and Hot QCD at Strong Coupling
• Metastability of hadronic compact stars
• The Surface Tension of Magnetized Quark Matter
• Quark deconfinement transition in neutron stars with the field correlator method
• Surface tension of highly magnetized degenerate quark matter
• Effects of the quark-hadron phase transition on highly magnetized neutron stars
• Confirming the existence of twin stars in a NICER way
• Effects of quark matter nucleation on the evolution of proto-neutron stars
• Formation of hybrid stars from metastable hadronic stars
• A model-agnostic analysis of hybrid stars with reactive interfaces
• Critical spectrum of fluctuations for deconfinement at proto-neutron star cores
• Chiral model approach to quark matter nucleation in neutron stars
• Equations of state and stability of color-superconducting quark matter cores in hybrid stars
• Deconfinement transition in protoneutron stars: analysis within the Nambu-Jona-Lasinio model
• Deconfinement of neutron star matter within the Nambu-Jona-Lasinio model
• Quark matter nucleation with a microscopic hadronic equation of state
• Contraction of cold neutron star due to in the presence a quark core
• Nucleation rate of color superconducting droplets in protoneutron stars
• The Meissner Effect and Vortex Expulsion in Color-Superconducting Quark stars, and its Role for Re-heating of Magnetars
• Speed of sound in dense matter and two families of compact stars
• Hybrid stars with color superconducting cores in an extended FCM model
• Quark deconfinement in protoneutron star cores: effect of color superconductivity within the MIT bag model
• Strange quark matter and proto-strange stars in an equivaparticle model
• Role of thermal fluctuations in nucleation of three-flavor quark matter
• Electroweak decay of quark matter within dense astrophysical combustion flames
• Vortex Dynamics in Color-Superconducting Quark stars: The Re-heating of Magnetars