Thermal and electrical conductivities of crystals in neutron stars and degenerate dwarfs

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Electrical Resistivity, Electron Phonon Interactions, Neutron Stars, Stellar Envelopes, Thermal Conductivity, Umklapp Process, White Dwarf Stars, Crystals, Electron Scattering, Nuclear Reactions, Stellar Temperature

Scientific paper

Calculations over a wide density range are presented for thermal and electrical conductivities due to electron scattering on phonons in the degenerate cores of white dwarfs and the envelopes of neutron stars. The main contribution to scattering in the stellar zones considered comes from Umklapp processes which, in the lower temperature zones, are frozen out, resulting in a sharp growth of electrical and thermal conductivities. It is suggested that such processes would make nuclear burning more stable in such zones.

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