Repositorio
Institucional

Rather, Ishfaq A.

Panotopoulos, Grigoris

Lopes, Ilidio

Quark models and radial oscillations: decoding the HESS J1731-347 compact object's equation of state

SPRINGER

EUROPEAN PHYSICAL JOURNAL C

en

We investigate the peculiar nature of strange stars through an analysis of different quark models, i.e. vBag model and CFL model equation of states at different parameter sets, and focus on understanding the equation of state governing the intriguing central compact object (CCO) within the supernova remnant HESS J1731-347, with a mass and radius of M = 0.77(-0.17)(+0.20) M-circle dot and R = 10.4(-0.78)(+0.86) km, respectively. Additionally, we compare the radial oscillations of two models to determine the frequency of the HESS J1731-347 compact object at its maximum mass. The frequencies of radial oscillations are computed for each of the four EoSs considered. In total, the 10 lowest radial frequencies for each of those EoSs have been computed. By delving into these aspects, we aim at deepening our understanding of strange stars and their connection to the observed HESS J1731-347 mass-radius relationship.

2023

artículo original

10.1140/epjc/s10052-023-12223-1

PDF

Quark models

radial oscillations

Física

modelos de quarks

oscilaciones radiales

artículo original

versión publicada

CC BY 4.0

CC BY 4.0

acceso abierto

acceso abierto

WOS:001106450100001

1434-6044

verde# dorada

Física

FCT UIDB/00099/2020

FCT PTDC/FIS-AST/28920/2017