Hyperonization in compact stars

TL;DR

This paper reviews the covariant density functional approach to dense nuclear matter in compact stars, focusing on hyperonization and $\Delta$-resonances, and discusses implications for star properties and recent developments.

Contribution

It provides a comprehensive review of hyperonization effects in dense matter within the covariant density functional framework, including recent advances and astrophysical implications.

Findings

Hyperonization significantly affects the equation of state of dense matter.

The mass-radius relation of compact stars is altered by hyperon presence.

Tidal deformabilities are influenced by hyperonization and rotation.

Abstract

We review the covariant density functional approach to the equation of state of the dense nuclear matter in compact stars. The main emphasis is on the hyperonization of the dense matter, and the role played by the $\Delta$-resonances. The implications of hyperonization for the astrophysics of compact stars, including the equation of state, composition, and stellar parameters are examined. The mass-radius relation and tidal deformabilities of static and rapidly rotating (Keplerian) configurations are discussed in some detail. We briefly touch upon some other recent developments involving hyperonization in hot hypernuclear matter at high- and low-densities.