Equation of State at High-Baryon Density and Compact Stellar Objects

TL;DR

This paper reviews the relationship between high-baryon density matter in compact stars and astrophysical observations, exploring the equation of state, deconfinement to quark matter, and connections to heavy-ion collision experiments.

Contribution

It provides an overview of modern methods, data, and constraints for modeling neutron-star equations of state and compares dense stellar matter with hot matter from collisions.

Findings

Constraints on neutron-star equations of state from astrophysical data

Potential links between neutron-star matter and heavy-ion collision results

Insights into deconfinement to quark matter in dense stellar environments

Abstract

In this contribution I review the connection between compact stars and high-baryon density matter, focusing on astrophysical observables for deconfinement to quark matter. I discuss modern ingredients, repositories, and constraints for the neutron-star equations of state. Finally, I draw comparisons between dense and hot matter created in neutron-star mergers and heavy-ion collisions, and the possibility of quantitatively establishing a link between them.