On the anomalous mass defect of strange stars in the Field Correlator Method

TL;DR

This paper explores the mass defects of strange stars using the Field Correlator Method, revealing anomalous energy releases comparable to gamma-ray bursts and supernova neutrino emissions, dependent on model parameters.

Contribution

It introduces a nonperturbative equation of state for strange stars based on the Field Correlator Method, highlighting the dependence of mass defects on key parameters and their potential astrophysical significance.

Findings

Mass defects can reach around 10^{53} erg.

Anomalous mass defects are sensitive to model parameters.

Results align with energies observed in gamma-ray bursts and supernovae.

Abstract

We investigate general aspects of the mass defects of strange stars in the context of the Field Correlator Method, without magnetic field. The main parameters of the model that enter the corresponding nonperturbative equation of state of the quark gluon plasma are the gluon condensate $G_2$ and the large distance static $Q{\bar Q}$ potential $V_1$. We calculate mass defects of stellar configurations in the central density range $11<\log\rho_c<18$. In general, the mass defects are strongly dependent on the model parameters. For a large range of values of $G_2$ and $V_1$, we obtain anomalous mass defects with magnitudes around $10^{53}\,$erg\,, of the same order of the observed energies of gamma-ray bursts and neutrino emissions in SN1987A, and of the theoretically predicted energies of the quark-novae explosions.