Properties of the outer crust of neutron stars from Hartree-Fock-Bogoliubov mass models

Details Properties of the outer crust of neutron stars from Hartree-Fock-Bogoliubov mass models Properties of the outer crust of neutron stars from Hartree-Fock-Bogoliubov mass models

Jun 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011phrvc..83f5810p&link_type=abstract

Physical Review C, vol. 83, Issue 6, id. 065810

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6

Neutron Star Crust, Binding Energies And Masses, Hartree-Fock And Random-Phase Approximations, Equations Of State Of Neutron-Star Matter

Scientific paper

We have calculated the zero-temperature properties of the outer crust of neutron stars for four nuclear-mass models based on the Hartree-Fock-Bogoliubov method: the three most recent Skyrme-force models (HFB-19, HFB-20, and HFB-21) and the Gogny-force model D1M. While the equation of state is substantially the same for the four models, the nuclidic composition varies considerably from one model to another. We solve the Tolman-Oppenheimer-Volkoff equations by integrating inward from the surface and thereby determine the abundance of each nuclide in the outer crust of a typical neutron star of mass 1.5M&sun; and radius 13 km. Although the total mass of the outer crust is slightly model dependent, its thickness is essentially the same for all four models.

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