A toy model of neutron stars with a dark-energy Chaplygin core and a polytropic crust can produce stable configurations that fit current mass-radius and tidal-deformability observations, though the fit is driven by free parameters.
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Neutron stars with a dark-energy core from the Chaplygin gas
A toy model of neutron stars with a dark-energy Chaplygin core and a polytropic crust can produce stable configurations that fit current mass-radius and tidal-deformability observations, though the fit is driven by free parameters.