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相关论文: Effect of superfluid matter of neutron star on the…

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We study the effects of finite stellar temperatures on the oscillations of superfluid neutron stars. The importance of these effects is illustrated with a simple example of a radially pulsating general relativistic star. Two main effects…

太阳与恒星天体物理 · 物理学 2011-06-07 E. M. Kantor , M. E. Gusakov

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 investigate the constraints on the mass and radius of neutron stars by considering the tidal deformability in the merge of neutron star binaries. In order to extract the most reliable range of uncertainty from theory, we employ models…

核理论 · 物理学 2019-01-02 Young-Min Kim , Yeunhwan Lim , Kyujin Kwak , Chang Ho Hyun , Chang-Hwan Lee

With the first detections of binary neutron star mergers by gravitational-wave detectors, it proves timely to consider how the internal structure of neutron stars affects the way in which they can be asymmetrically deformed. Such…

高能天体物理现象 · 物理学 2020-05-27 Fabian Gittins , Nils Andersson , Jonas P. Pereira

We study the tidal effects of a Kerr black hole on a neutron star in black hole-neutron star binary systems using a semi-analytical approach which describes the neutron star as a deformable ellipsoid. Relativistic effects on the neutron…

天体物理学 · 物理学 2010-03-18 V. Ferrari , L. Gualtieri , F. Pannarale

The energy radiated in supernova neutrinos is a fundamental quantity that is closely related to the gravitational binding energy of a neutron star. Recently the tidal deformability of neutron stars was constrained by gravitational wave…

高能天体物理现象 · 物理学 2020-11-18 Brendan Reed , C. J. Horowitz

The suppression of the neutron superfluid fraction in the inner crust of a cold neutron star is mitigated by the quantum zero-point motion of ions about their equilibrium position. In turn, the crustal dynamics is altered by the presence of…

高能天体物理现象 · 物理学 2026-05-21 Nicolas Chamel

We study the impact of out-of-equilibrium, dissipative effects on the dynamics of inspiraling neutron stars. We find that modeling dissipative processes (such as those from the stars internal effective fluid viscosity) requires that one…

广义相对论与量子宇宙学 · 物理学 2025-01-15 Justin L. Ripley , Abhishek Hegade K. R. , Nicolas Yunes

We analyse the effect of neutron superfluidity on the cooling time of inner crust matter in neutron stars, in the case of a rapid cooling of the core. The specific heat of the inner crust, which determines the thermal response of the crust,…

核理论 · 物理学 2008-11-26 C. Monrozeau , J. Margueron , N. Sandulescu

Despite the absence of viscous drag, the neutron superfluid permeating the inner crust of a neutron star can still be strongly coupled to nuclei due to non-dissipative entrainment effects. Neutron superfluidity and entrainment have been…

高能天体物理现象 · 物理学 2012-07-02 N. Chamel , J. M. Pearson , S. Goriely

We consider the effect of density dependent dark matter on the neutron star mass, radius, and tidal deformability. Nuclear matter (normal matter) as well as the fermionic dark matter sector is considered in a mean field model. We adopt the…

核理论 · 物理学 2020-11-04 Arpan Das , Tuhin Malik , Alekha C. Nayak

We investigate the role of neutron star superfluidity for magnetar oscillations. Using a plane-wave analysis we estimate the effects of a neutron superfluid in the elastic crust region. We demonstrate that the superfluid imprint is likely…

天体物理学 · 物理学 2010-11-29 N. Andersson , K. Glampedakis , L. Samuelsson

The effects of pinning between fluxoids and vortices in the core of a neutron star, on the dynamics of the core neutron superfluid are considered. The pinning impedes, but does not absolutely block, any radial as well as {\em azimuthal}…

高能天体物理现象 · 物理学 2015-05-20 M. Jahan-Miri

We study the impact of crust-core connection procedures on various neutron-star properties, especially on the tidal deformability. We consider three types of connection procedures to treat the discontinuity in a nonunified equation of state…

高能天体物理现象 · 物理学 2026-02-18 Junbo Pang , Hong Shen , Jinniu Hu

This article is intended for undergraduate students with the aim to provide a pedagogical introduction to the physics of stellar tidal deformations. The spherically symmetric shape of any star is deformed via rotation around an arbitrary…

高能天体物理现象 · 物理学 2020-07-02 Andreas Zacchi

We discuss superfluidity in neutron matter, with particular attention to induced interactions and to universal properties accessible with cold atoms.

核理论 · 物理学 2008-11-26 A. Schwenk

In the inner crust of a neutron star, due to the high density and pressure, nuclei which are still present, are immersed in a neutron superfluid. One then expects that the dynamical properties of nuclei are significantly affected. In order…

天体物理学 · 物理学 2008-11-26 Piotr Magierski , Aurel Bulgac

The tidal deformation of a neutron star in a binary inspiral driven by the emission of gravitational waves affects the orbital dynamics and produces a measurable modulation of the waves. Late in the inspiral, a regime of dynamical tides…

广义相对论与量子宇宙学 · 物理学 2025-06-11 Tristan Pitre , Eric Poisson

Gravitational-wave measurements of the tidal deformability of neutron stars could reveal important information regarding their internal structure, the equation of state of high-dense nuclear matter and gravity in strong field regime. In…

广义相对论与量子宇宙学 · 物理学 2021-11-16 Liang Meng , Dao-Jun Liu

Gravitational wave astronomy is expected to provide independent constraints on neutron star properties, such as their dense matter equation of state. This is possible with the measurements of binary components' tidal deformability, which…

广义相对论与量子宇宙学 · 物理学 2020-05-27 Jonas P. Pereira , Michał Bejger , Nils Andersson , Fabian Gittins