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Article Dans Une Revue Nucl.Phys.A Année : 2021

On the sound speed in hyperonic stars

Résumé

We build upon the remarkable, model independent constraints on the equation of state of dense baryonic matter established recently by Annala et al. [1] . Using the quark-meson coupling model, an approach to nuclear structure based upon the self-consistent adjustment of hadron structure to the local meson fields, we show that, once hyperons are allowed to appear in dense matter in β -equilibrium, the equation of state is consistent with those constraints. As a result, while one cannot rule out the occurrence of quark matter in the cores of massive neutron stars, the available constraints are also compatible with the presence of hyperons.

Dates et versions

hal-03164438 , version 1 (09-03-2021)

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T.F. Motta, P.A.M. Guichon, A.W. Thomas. On the sound speed in hyperonic stars. Nucl.Phys.A, 2021, 1009, pp.122157. ⟨10.1016/j.nuclphysa.2021.122157⟩. ⟨hal-03164438⟩
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