Dispersion and decay of collective modes in neutron star cores

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

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Dispersion and decay of collective modes in neutron star cores

机译：中子星芯中集体模式的分散与衰变

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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.

机译：我们计算中子，质子和电子在中子恒星外核中的集体模式的频率。中子和质子在流体动力学近似下处理，电子被视为碰撞。核磁耦合到电子导致集体模式的Landau阻尼以及低洼模式的显着分散。我们研究了模式频率对中子和质子之间夹带强度的灵敏度，其特征在于。评估集体模式对导热率的贡献。

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《Physical Review C》 |2017年第2017期|025805.1-025805.10|共10页
作者
D. N. Kobyakov; C. J. Pethick; S. Reddy; A. Schwenk;
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Institute of Applied Physics of the Russian Academy of Sciences 603950 Nizhny Novgorod Russia Institut fuer Kernphysik Technische Universitaet Darmstadt 64289 Darmstadt Germany Radiophysics Department Lobachevsky State University 603950 Nizhny Novgorod Russia;

The Niels Bohr International Academy The Niels Bohr Institute University of Copenhagen Blegdamsvej 17 DK-2100 Copenhagen O Denmark NORDITA KTH Royal Institute of Technology and Stockholm University Roslagstullsbacken 23 SE-106 91 Stockholm Sweden;

Institute for Nuclear Theory University of Washington Seattle Washington 98195-1550 USA Department of Physics University of Washington Seattle Washington 98195-1550 USA;

Institut fuer Kernphysik Technische Universitaet Darmstadt 64289 Darmstadt Germany ExtreMe Matter Institute EMMI GSI Helmholtzzentrum fuer Schwerionenforschung GmbH 64291 Darmstadt Germany Max- Planck-Institut fuer Kernphysik Saupfercheckweg 1 69117 Heidelberg Germany;

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4. Magnetic Field Decay in the Non-superfluid Regions of Neutron Star Cores [C] . A.G. MUSLIMOV, H.M. VAN HORN IAU Colloquium . 1994

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5. Theory of nuclear matter of neutron stars and core collapsing supernovae [D] . Lim, Yeunhwan. 2012

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6. Standard Model Treatment of the Radiative Corrections to Neutron β-Decay [O] . G. G. Bunatian 2005

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7. Dispersion and decay of collective modes in neutron star cores [O] . Kobyakov, D. N., Pethick, C. J., Reddy, S., 2017

机译：中子星核心集体模式的色散和衰变

Dispersion and decay of collective modes in neutron star cores

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