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Neutron stars in a Skyrme model with hyperons

  • L. MornasEmail author
Original Article

Abstract.

Available Skyrme parametrizations with hyperons are examined from the point of view of their suitability for applications to neutron stars. It is shown that the hyperons can attenuate or even remove the problem of ferromagnetic instability common to (nearly) all Skyrme parametrizations of the nucleon-nucleon interaction. At high density the results are very sensitive to the choice of the ΛΛ interaction. The selected parameter sets are then used to obtain the resulting properties of both cold neutron stars and hot protoneutron stars. The general features known from other models are recovered.

PACS.

97.60.Jd Neutron stars 21.65.+f Nuclear matter 21.30.-x Nuclear forces 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2005

Authors and Affiliations

  1. 1.Departamento de FísicaUniversidad de OviedoOviedoSpain

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