publication . Preprint . Article . 2017

Dispersion and decay of collective modes in neutron star cores

D. N. Kobyakov; C. J. Pethick; S. Reddy; A. Schwenk;

Open Access English

Published: 23 Aug 2017

Summary
references
27

Abstract

We calculate the frequencies of collective modes of neutrons, protons and electrons in the outer core of neutron stars. The neutrons and protons are treated in a hydrodynamic approximation and the electrons are regarded as collisionless. The coupling of the nucleons to the electrons leads to Landau damping of the collective modes and to significant dispersion of the low-lying modes. We investigate the sensitivity of the mode frequencies to the strength of entrainment between neutrons and protons, which is not well characterized. The contribution of collective modes to the thermal conductivity is evaluated.

doi: 10.1103/PhysRevC.96.025805

Subjects

arXiv: Nuclear Experiment

free text keywords: Nuclear Theory, Nuclear physics, Outer core, Neutron star, Atomic physics, Physics, Proton, Neutron, Dispersion (optics), Electron

Related Organizations

INSTITUTE OF APPLIED PHYSICS, RUSSIAN ACADEMY OF SCIENCES
Russian Federation
Institute of Applied Geophysics of the Academy of Sciences
Russian Federation
Washington University at St. Louis - Department of Physics
Austria

Funded by

EC| STRONGINT

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