Hyperonization in compact stars

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.

v3: matches final version, references updated; v2: 47 pages, 11 figures, minor corrections; v1: 45 pages, 11 figures, chapter to appear in "Astrophysics in the XXI century with compact stars", World Scientific, eds. Cesar Zen Vasconcellos and Fridolin Weber

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Cited by in corpus (4)

• Relativistic hybrid stars in light of the NICER PSR J0740+6620 radius measurement
• Neutron Stars with Baryon Number Violation, Probing Dark Sectors
• Equation of state and composition of proto-neutron stars and merger remnants with hyperons
• Baryonic dense matter in view of gravitational-wave observations