Studies of the neutron star crust

Schramm, Stefan; Nandi, Rana

doi:10.1088/1742-6596/861/1/012021

Cited by 2 publications

(2 citation statements)

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“…We fit both the Coulomb logarithms Λ η and Λ κ as a function of ρ/ρ 0 for a fixed T using the functions given in Eqs. (34) and (35). All the fit paremeters are presented in Table VI.…”

Section: Acknowledgementsmentioning

confidence: 99%

“…The pasta phase has been studied extensively by static methods such as liquid-drop models [9,[11][12][13], Thomas-Fermi approximations [14,15], and the Hartee-Fock method [16,17] as well as using dynamical approaches like classical [3,4,6,[19][20][21][22][23][24][25] and quantum molecular dynamics simulations [28][29][30][31][32][33][34][35][36] and the time-dependent Hartree-Fock method [26,27]. Although several authors [8,[37][38][39] have studied transport properties of the crust, very few studies employed dynamical approach.…”

Section: Introductionmentioning

confidence: 99%

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Transport Properties of the Nuclear Pasta Phase with Quantum Molecular Dynamics

Nandi

Schramm

2018

ApJ

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We study the transport properties of nuclear pasta for a wide range of density, temperature and proton fractions, relevant for different astrophysical scenarios adopting a quantum molecular dynamics model. In particular, we estimate the values of shear viscosity as well as electrical and thermal conductivities by calculating the static structure factor S(q) using simulation data. In the density and temperature range where the pasta phase appears, the static structure factor shows irregular behavior. The presence of a slab phase greatly enhances the peak in S(q). However, the effect of irregularities in S(q) on the transport coefficients is not very dramatic. The values of all three transport coefficients are found to have the same orders of magnitude as found in theoretical calculations for the inner crust matter of neutron stars without the pasta phase and therefore, is in contrast to earlier speculations that a pasta layer might be highly resistive, both thermally and electrically.

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Section: Acknowledgementsmentioning

confidence: 99%