13–17 sept. 2021
São José dos Campos, Brazil
Fuseau horaire America/Sao_Paulo

Slow stable hybrid stars: a new class of compact stars that fulfills all current observational constraints

14 sept. 2021, 16:04
1m
São José dos Campos, Brazil

São José dos Campos, Brazil

Instituto Tecnológico de Aeronáutica
Poster Poster

Orateur

Germán Lugones (Universidade Federal do ABC)

Description

We study hybrid stars considering the effects on stellar stability of the hadron-quark conversion speed at the sharp interface. The equation of state is constructed by combining a model-agnostic hadronic description with a constant speed of sound model for quark matter. We show that current LIGO/Virgo, NICER, low-density nuclear and high-density perturbative QCD constraints can be satisfied in two scenarios with low and high transition pressures. If the conversion speed is slow, a new class of hybrid objects is possible and very stiff hadronic equations of state cannot be discarded.

Auteur principal

Germán Lugones (Universidade Federal do ABC)

Co-auteurs

Documents de présentation