Abstract
We study the characteristics of the Outer Crust of neutron stars, that is the region of neutron stars characterized by a mass density less than the “neutron drip” density and composed by white dwarf—like material (fully ionized nuclei and free electrons). In particular, we calculate its mass and its thickness (Mcrust and ΔRcrust respectively) with a general relativistic model, finding that the Outer Crust is smaller in mass and in radial extension for more compact objects. We also propose a correlation with the Fireshell Model of GRBs, that assumes that GRBs originates from the gravitational collapse to a black hole. One of the parameters used in this model is the baryon loading B of the electron—positron plasma, related to the mass of the baryonic remnant of the star progenitor MB. We propose that B originates from the Outer Crust of neutron stars and compare Mcrust with the values of MB used to reproduce the observational data of several GRBs, finding that they are compatible.
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