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From the Skyrme model to hypothetical Skyrmion stars: Astrophysical implications

Rachid Ouyed
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Abstract

We discuss the Skyrme model for strong interactions and the concept of a Skyrmion fluid. The corresponding compact objects, namely Skyrmion stars, constructed from the equation of state describing such a fluid are presented and compared to models of neutron stars based on modern equation of states. We suggest plausible Skyrmion star candidates in the 4U 1636-53 and 4U 1820-30 low mass X-ray binary systems where the suggested masses of the accreting compact companion (\sim 2.0M_{\odot}) remain a challenge for neutron star models.

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Rachid Ouyed. 2004-02-05. From the Skyrme model to hypothetical Skyrmion stars: Astrophysical implications. https://arxiv.org/abs/astro-ph/0402122

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