Strangeness in Relativistic Astrophysics

TL;DR

This paper reviews the role of strange particles like hyperons, kaons, and strange quarks in the physics of compact stars, discussing their effects on star properties and signals of exotic matter in high-density cores.

Contribution

It provides a comprehensive overview of how strangeness influences relativistic astrophysics of compact stars, highlighting differences and common features of strange phases.

Findings

Strange particles affect the global properties of compact stars.

Presence of exotic matter signals can be detected through astrophysical observations.

Different strange phases have distinct impacts on star structure.

Abstract

In these lecture notes, the role of strangeness in relativistic astrophysics of compact stars is addressed. The appearance of strange particles, as hyperons, kaons, and strange quarks, in the core of compact stars is examined and common features as well as differences are presented. Impacts on the global properties of compact stars and signals of the presence of exotic matter are outlined for the various strange phases which can appear in the interior at high densities.