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arXiv · 2104.13480

Radial oscillations in neutron stars from QCD

José C. Jiménez·Eduardo S. Fraga
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Abstract

We study the stability against infinitesimal radial oscillations of neutron stars generated by a set of equations of state obtained from first-principle calculations in cold and dense QCD and constrained by observational data. We consider mild and large violations of the conformal bound, $c_{s} = 1/\sqrt{3}$, in stars that can possibly contain a quark matter core. Some neutron star families in the mass-radius diagram become dynamically unstable due to large oscillation amplitudes near the core.

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José C. Jiménez, Eduardo S. Fraga. 2021-04-27. Radial oscillations in neutron stars from QCD. https://doi.org/10.1103/physrevd.104.014002

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