Medium effects and the structure of neutron stars in the effective mass bag model

Details Medium effects and the structure of neutron stars in the effective mass bag model Medium effects and the structure of neutron stars in the effective mass bag model

1998-01-21

arxiv.org/abs/astro-ph/9801200v1

Astronomy and Astrophysics

Astrophysics

5 pages, 1 eps-figure included, 1 gif-figure, to be published in Proc. Int. Workshop "Hirschegg'98: Nuclear Astrophysics"

Scientific paper

One of the most intriguing consequence of the extreme conditions inside neutron stars is the possibility of the natural existence of a deconfined strange quark matter phase in the high density interior of the star. The equation of state (EOS) of strange quark matter (SQM) was recently improved in the framework of the MIT bag model by including medium effects. It was found that medium effects increase the energy per baryon of SQM and therefore lower the stability of this phase. In this work we investigate the influence of medium effects on the structure of hybrid stars within this model. We found that the medium effects reduce the extent of a pure SQM phase in the interior of an hybrid star significantly in favor of a mixed phase of quark and hadronic matter.

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