Screening corrections to the Coulomb crystal elastic moduli
Solar and Stellar Astrophysics
2016-03-23 v1 High Energy Astrophysical Phenomena
Abstract
Corrections to elastic moduli, including the effective shear modulus, of a solid neutron star crust due to electron screening are calculated. At any given mass density, the crust is modelled as a body-centred cubic Coulomb crystal of fully ionized atomic nuclei of a single type with a polarizable charge-compensating electron background. Motion of the nuclei is neglected. The electron polarization is described by a simple Thomas-Fermi model of exponential electron screening. The results of numerical calculations are fitted by convenient analytic formulae. They should be used for precise neutron star oscillation modelling, a rapidly developing branch of stellar seismology.
Cite
@article{arxiv.1603.04227,
title = {Screening corrections to the Coulomb crystal elastic moduli},
author = {D. A. Baiko},
journal= {arXiv preprint arXiv:1603.04227},
year = {2016}
}
Comments
6 pages