info:eu-repo/semantics/article
Phase transition and stiffer core fluid in neutron stars: Effects on stellar configurations, dynamical stability, and tidal deformability
Fecha
2023-03-13Registro en:
.
European Physical Journal C
Autor
Arbañil, José D. V.
Rodrigues, Lucas S.
Lenzi, César H.
Institución
Resumen
In this work, we investigate the influence of the
phase transition and a stiffer fluid in neutron stars’ cores on
the static equilibrium configuration, dynamical stability, and
tidal deformability. For this aim, it is taken into account that
the fluid in the core and the envelope follow the relativistic
polytropic equation of state. We find that the phase transition
and a stiffer fluid in the core will reflect in the total mass,
radius, speed of sound, core radius, radial stability with a slow
and rapid conversion at the interface, and tidal deformability.
We also investigate the dimensionless tidal deformability Λ1
and Λ2 for a binary neutron stars system with chirp mass
equal to GW170817. Finally, we contrast our results with
observational data to show the role that phase transition and
a stiffer core fluid could play in the study of neutron stars