Electron conduction in magnetized neutron star envelopes

Authors
Citation
Ay. Potekhin, Electron conduction in magnetized neutron star envelopes, ASTRON ASTR, 351(2), 1999, pp. 787-797
Citations number
51
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY AND ASTROPHYSICS
ISSN journal
00046361 → ACNP
Volume
351
Issue
2
Year of publication
1999
Pages
787 - 797
Database
ISI
SICI code
0004-6361(199911)351:2<787:ECIMNS>2.0.ZU;2-K
Abstract
practical expressions are derived for evaluation of electrical and thermal conductivities and thermopower of degenerate electrons in the outer envelop es of neutron stars with magnetic fields. All tensor components of the kine tic coefficients are calculated (those: related to conduction along and acr oss magnetic field and to the Hall currents). The kinetic coefficients are presented as energy averages of expressions containing energy dependent eff ective relaxation times of two types, associated either with longitudinal o r with transverse currents. The calculation is based on the effective scatt ering potential proposed in the previous paper, which describes the electro n-ion and electron-phonon scattering, taking into account correlation effec ts in strongly coupled Coulomb liquid and multi-phonon scattering in Coulom b crystal, respectively. Analytic fitting for mulae are devised for the eff ective relaxation times at arbitrary field strength. Basing on these result s, we calculate the transport coefficients at various temperatures, densiti es, and magnetic fields pertinent to the neutron star envelopes.