Neutron specific heat in the crust of neutron stars from the nuclear band theory

Details Neutron specific heat in the crust of neutron stars from the nuclear band theory Neutron specific heat in the crust of neutron stars from the nuclear band theory

2008-12-23

arxiv.org/abs/0812.4389v1

Phys.Rev.C79:012801,2009

Physics

Nuclear Physics

Nuclear Theory

Scientific paper

10.1103/PhysRevC.79.012801

The inner crust of neutron stars, formed of a crystal lattice of uclear clusters immersed in a sea of unbound neutrons, may be the nique example of periodic nuclear systems. We have calculated the neutron specific heat in the shallow part of the crust using the band theory of solids with Skyrme nucleon-nucleon interactions. We have also tested the validity of various approximations. We have found that the neutron specific heat is well described by that of a Fermi gas, while the motion of the unbound neutrons is strongly affected by the nuclear lattice. These apparently contradictory results are explained by the particular properties of the neutron Fermi surface.

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