Hadron-Quark Phase Transitions in Hyperon Stars

TL;DR

This paper compares different models of hadron-quark phase transitions in neutron stars, considering hyperons and neutrino effects, to understand their impact on star properties and maximum mass.

Contribution

It introduces a detailed comparison of Gibbs and Maxwell constructions including hyperons and neutrino trapping in neutron star models.

Findings

Hyperon populations are suppressed in the phase transition.

Neutrino trapping shifts the transition onset.

Maximum mass of (proto)neutron stars is affected.

Abstract

We compare the Gibbs and Maxwell constructions for the hadron-quark phase transition in neutron and protoneutron stars, including interacting hyperons in the confined phase. We find that the hyperon populations are suppressed, and that neutrino trapping shifts the onset of the phase transition. The effects on the (proto)neutron star maximum mass are explored.