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相关论文: Rapidly rotating superfluid neutron stars in Newto…

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We develop a formalism to model slowly rotating superfluid Newtonian neutron stars. A two-fluid model is used to describe the matter, where one fluid is the superfluid neutrons that are believed to exist in the inner crust and core of…

天体物理学 · 物理学 2009-11-06 R. Prix , G. L. Comer , N. Andersson

We present a general formalism to treat slowly rotating general relativistic superfluid neutron stars. As a first approximation, their matter content can be described in terms of a two-fluid model, where one fluid is the neutron superfluid,…

广义相对论与量子宇宙学 · 物理学 2009-10-31 N. Andersson , G. L. Comer

Using time evolutions of the relevant linearised equations we study non-axisymmetric oscillations of rapidly rotating and superfluid neutron stars. We consider perturbations of Newtonian axisymmetric background configurations and account…

天体物理学 · 物理学 2009-11-13 Andrea Passamonti , Brynmor Haskell , Nils Andersson

Neutron stars that are cold enough should have two or more superfluids/supercondutors in their inner crusts and cores. The implication of superfluidity/superconductivity for equilibrium and dynamical neutron star states is that each…

广义相对论与量子宇宙学 · 物理学 2009-11-10 G. L. Comer

We develop a general formalism to treat, in general relativity, the linear oscillations of a two-fluid star about static (non-rotating) configurations. Such a formalism is intended for neutron stars, whose matter content can be described,…

广义相对论与量子宇宙学 · 物理学 2009-10-31 G. L. Comer , David Langlois , Lap Ming Lin

We discuss slowly-rotating, general relativistic, superfluid neutron stars in the Hartle-Thorne formulation. The composition of the stars is described by a simple two-fluid model which accounts for superfluid neutrons and all other…

广义相对论与量子宇宙学 · 物理学 2023-03-21 Eneko Aranguren , José A. Font , Nicolas Sanchis-Gual , Raül Vera

We describe recent progress in the numerical study of the structure of rapidly rotating superfluid neutron star models in full general relativity. The superfluid neutron star is described by a model of two interpenetrating and interacting…

广义相对论与量子宇宙学 · 物理学 2007-05-23 R. Prix , J. Novak , G. L. Comer

We develop a general formalism to treat, in general relativity, the nonradial oscillations of a superfluid neutron star about static (non-rotating) configurations. The matter content of these stars can, as a first approximation, be…

广义相对论与量子宇宙学 · 物理学 2009-11-07 N. Andersson , G. L. Comer , D. Langlois

The purpose of these notes is to give a brief review of superfluidity in neutron stars. After a short presentation explaining why and how superfluidity is expected in the crust and core of neutron stars, consequences on thermal evolution…

天体物理学 · 物理学 2007-05-23 David Langlois

We discuss the nature of the various modes of pulsation of superfluid neutron stars using comparatively simple Newtonian models. The matter in these stars is described in terms of a two-fluid model, where one fluid is the neutron…

天体物理学 · 物理学 2011-07-18 N. Andersson , G. L. Comer

We investigate the slowly rotating general relativistic superfluid neutron stars including the entrainment effect in a two-fluid model, where one fluid represents the superfluid neutrons and the other is the charge-neutral fluid called the…

高能天体物理现象 · 物理学 2015-06-23 Apurba Kheto , Debades Bandyopadhyay

We consider the hydrodynamics of the outer core of a neutron star under conditions when both neutrons and protons are superfluid. Starting from the equation of motion for the phases of the wave functions of the condensates of neutron pairs…

量子气体 · 物理学 2017-03-02 D. N. Kobyakov , C. J. Pethick

We present a numerical model for uniformly rotating superfluid neutron stars, for the first time with realistic microphysics including entrainment, in a fully general relativistic framework. We compute stationary and axisymmetric…

高能天体物理现象 · 物理学 2016-11-04 Aurélien Sourie , Micaela Oertel , Jérôme Novak

This article starts by providing an introductory overview of the theoretical mechanics of rotating neutron stars as developped to account for the frequency variations, and particularly the discontinuous glitches, observed in pulsars. The…

天体物理学 · 物理学 2007-05-23 Brandon Carter

We have developed a theoretical model and a numerical code for stationary rotating superfluid neutron stars in full general relativity. The underlying two-fluid model is based on Carter's covariant multi-fluid hydrodynamic formalism. The…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Reinhard Prix , Jerome Novak , G. L. Comer

We develop a Lagrangian perturbation framework for rotating non-relativistic superfluid neutron stars. This leads to the first generalization of classic work on the stability properties of rotating stars to models which account for the…

天体物理学 · 物理学 2009-11-10 N. Andersson , G. L. Comer , K. Grosart

General relativistic superfluid neutron stars have a significantly more intricate dynamics than their ordinary fluid counterparts. Superfluidity allows different superfluid (and superconducting) species of particles to have independent…

广义相对论与量子宇宙学 · 物理学 2009-11-07 G. L. Comer , R. Joynt

The relativistic dynamic equations are derived for a superfluid-superconducting mixture coupled to the electromagnetic field. For definiteness, and bearing in mind possible applications of our results to neutron stars, it is assumed that…

广义相对论与量子宇宙学 · 物理学 2017-01-25 Mikhail E. Gusakov , Vasiliy A. Dommes

We study time evolutions of superfluid neutron stars, focussing on the nature of the oscillation spectrum, the effect of mutual friction force on the oscillations and the hydrodynamical spin-up phase of pulsar glitches. We linearise the…

太阳与恒星天体物理 · 物理学 2015-05-18 A. Passamonti , N. Andersson

It is shown how to set up a mathematically elegant and fully relativistic superfluid model that can provide a realistic approximation (neglecting small anisotropies due to crust solidity, magnetic fields, et cetera, but allowing for the…

天体物理学 · 物理学 2009-10-30 David Langlois , David M. Sedrakian , Brandon Carter
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