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Título del libro: On The Crust Of Neutron Stars

Autores UNAM:
BARBARA PATRICELLI;
Autores externos:

Idioma:

Año de publicación:
2016
Palabras clave:

Neutrons; Stars, Compact objects; Electron-positron plasma; Free electron; Gravitational collapse; Mass densities; Neutron stars; Observational data; Relativistic model, White dwarfs


Resumen:

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 fully ionized nuclei and free electrons (white dwarf-like material). In particular, we use a general relativistic model to calculate the mass and the thickness of this region (Mcrust and dRcrust respectively), 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 originate from the gravitational collapse to a black hole. One of the parameters of this model is the baryon loading of the electron-positron plasma B, which is related to the mass of the baryonic remnant of the star progenitor MB. We propose that B originates from the Outer Crust and compare Mcrust with the values of MB that allow the best fit of the observational data of various GRBs, finding that they are compatible. © 2010 Cambridge Scientific Publishers.


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