Tidal deformability of strange stars and the GW170817 event

نویسندگان

چکیده

In this work we consider strange stars formed by quark matter in the color-flavor-locked (CFL) phase of color superconductivity. The CFL is described a Nambu-Jona-Lasinio model with four-fermion vector and diquark interaction channels. effect superconducting medium on gluons are incorporated into including gluon self-energy thermodynamic potential. We construct parametrizations varying coupling $G_V$ comparing results to data tidal deformability from GW170817 event, observational maximum masses massive pulsars such as MSP J0740+6620, mass/radius fits NICER for PSR J003+0451. Our points out windows parameter space model, without effects included, that compatible all these astrophysical constraints, namely, $0.21<G_V/G_S<0.4$, $0.02<G_V/G_S<0.1$, respectively. also observe strong correlation between deformabilites event $G_V$. indicate cannot be ruled collisions compact binaries structural point view.

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ژورنال

عنوان ژورنال: Physical review

سال: 2021

ISSN: ['0556-2813', '1538-4497', '1089-490X']

DOI: https://doi.org/10.1103/physrevd.103.103010