Abstract:In this work we study how the small contribution of the inner crust to the total equation of state (EoS) of a neutron star affects its mass-radius relation, focusing on the canonical mass of 1.4M⊙. We build empirical EoS of the kind -p = Kǫ γ + b -in the range of 0.003 fm −3 < n < 0.08 fm −3 and also calculate the speed of sound in this region. We see that different behaviours of the speed of sound can affect the radius of the canonical star by more than 1.1 km. This result can help us understand extreme resul… Show more
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