Self-bound models of compact stars and recent mass-radius measurements

Details Self-bound models of compact stars and recent mass-radius measurements Self-bound models of compact stars and recent mass-radius measurements

2011-07-28

arxiv.org/abs/1107.5845v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

To appear in PRD

Scientific paper

The exact composition of a specific class of compact stars, historically referred to as "neutron stars", is still quite unknown. Possibilities ranging from hadronic to quark degrees of freedom, including self-bound versions of the latter have been proposed. We specifically address the suitability of strange star models (including pairing interactions) in this work, in the light of new measurements available for four compact stars. The analysis shows that these data might be explained by such an exotic equation of state, actually selecting a small window in parameter space, but still new precise measurements and also further theoretical developments are needed to settle the subject.

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