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相关论文: Dynamical tides in neutron stars: The impact of th…

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We study the tidal response of a superfluid neutron star in a binary system, focussing on Newtonian models with superfluid neutrons present throughout the star's core and the inner crust. Within the two-fluid formalism, we consider the main…

高能天体物理现象 · 物理学 2022-06-22 Andrea Passamonti , Nils Andersson , Pantelis Pnigouras

Dynamical tides of neutron stars in the late stages of binary inspirals provide a viable probe into dense matter through gravitational waves, and potentially trigger electromagnetic precursors. We model the tidal response as a set of driven…

高能天体物理现象 · 物理学 2026-01-30 Yong Gao , Hao-Jui Kuan , Cheng-Jun Xia , Hector O. Silva , Masaru Shibata

We introduce a phenomenological, physically motivated, model for the effective tidal deformability of a neutron star, adding the frequency dependence (associated with the star's fundamental mode of oscillation) that comes into play during…

广义相对论与量子宇宙学 · 物理学 2021-02-09 N. Andersson , P. Pnigouras

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

We carefully develop the framework required to model the dynamical tidal response of a spinning neutron star in an inspiralling binary system, in the context of Newtonian gravity, making sure to include all relevant details and connections…

广义相对论与量子宇宙学 · 物理学 2024-01-05 Pantelis Pnigouras , Fabian Gittins , Amlan Nanda , Nils Andersson , David Ian Jones

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

Dynamical tidal deformations play a crucial role in the gravitational waves emitted by binary neutron star systems during their late inspiral. In this work, we systematically explore how relativistic (dynamical and dissipative) tidal…

广义相对论与量子宇宙学 · 物理学 2026-03-31 Abhishek Hegade K. R. , Yumu Yang , Mauricio Hippert , Jacquelyn Noronha-Hostler , Jorge Noronha , Nicolás Yunes

We discuss the role of dynamical tidal effects for inspiralling neutron star binaries, focussing on features that may be considered "unmodelled" in gravitational-wave searches. In order to cover the range of possibilities, we consider i)…

高能天体物理现象 · 物理学 2018-01-31 N. Andersson , W. C. G. Ho

Tidal effects have an important impact on the late inspiral of compact binary systems containing neutron stars. Most current models of tidal deformations of neutron stars assume that the tidal bulge is directly related to the tidal field…

广义相对论与量子宇宙学 · 物理学 2016-11-17 Jan Steinhoff , Tanja Hinderer , Alessandra Buonanno , Andrea Taracchini

We discuss the response of neutron stars to the tidal interaction in a compact binary system, as encoded in the Love number associated with the induced deformation. This problem is of interest for gravitational-wave astronomy as there may…

太阳与恒星天体物理 · 物理学 2013-05-29 A. J. Penner , N. Andersson , L. Samuelsson , I. Hawke , D. I. Jones

Thanks to recent measurements of tidal deformability and radius, the nuclear equation of state and structure of neutron stars are now better understood. Here, we show that through resonant tidal excitations in a binary inspiral, the neutron…

高能天体物理现象 · 物理学 2020-11-18 Zhen Pan , Zhenwei Lyu , Béatrice Bonga , Néstor Ortiz , Huan Yang

Gravitational waves emitted in the late inspiral of binary neutron stars are affected by their tidal deformation. We study the tidal dynamics in full general relativity through matched-asymptotic expansions and prove that the dynamical…

广义相对论与量子宇宙学 · 物理学 2026-03-17 Abhishek Hegade K. R. , K. J. Kwon , Tejaswi Venumadhav , Hang Yu , Nicolás Yunes

We investigate the dynamical tide in a gravitational wave (GW)-driven coalescing binary involving a neutron star (NS). The NS is assumed to spin rapidly, with its spin axis anti-aligned with the orbit. Such an NS may exist if the binary…

广义相对论与量子宇宙学 · 物理学 2024-07-19 Hang Yu , Phil Arras , Nevin N. Weinberg

In the context of binary inspiral of mixed neutron star - black hole systems, we investigate the excitation of the neutron star oscillation modes by the orbital motion. We study generic eccentric orbits and show that tidal interaction can…

广义相对论与量子宇宙学 · 物理学 2018-03-07 A. Parisi , R. Sturani

During the final stages of a neutron-star binary coalescence, stellar quasi-normal modes can become resonantly excited by tidal fields. If the strain exerted by the excited modes exceeds the extent to which the crust can respond linearly,…

广义相对论与量子宇宙学 · 物理学 2021-07-14 Hao-Jui Kuan , Arthur G. Suvorov , Kostas D. Kokkotas

Motivated by future opportunities in gravitational-wave astronomy and the ongoing effort to constrain physics under extreme conditions, we consider the signature of individual mode resonances excited during the inspiral of binary systems…

广义相对论与量子宇宙学 · 物理学 2025-08-11 P. Pnigouras , N. Andersson , F. Gittins , A. R. Counsell

A neutron star in an inspiraling binary system is tidally deformed by its companion, and the effect leaves a measurable imprint on the emitted gravitational waves. While the tidal interaction falls within the regime of static tides during…

广义相对论与量子宇宙学 · 物理学 2024-03-07 Tristan Pitre , Eric Poisson

Neutron star (NS) binaries formed dynamically may have significant eccentricities while emitting gravitational waves (GWs) in the LIGO/VIRGO band. We study tidal effects in such eccentric inspiralling NS binaries using a set of hybrid…

高能天体物理现象 · 物理学 2020-10-21 Jie-Shuang Wang , Dong Lai

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

During the late stages of a binary neutron star inspiral, dynamical tides induced in each star by its companion become significant and should be included in complete gravitational-wave (GW) modeling. We investigate the coupling between the…

高能天体物理现象 · 物理学 2025-11-12 Jonas P. Pereira , Lucas Tonetto , Michał Bejger , J. Leszek Zdunik , Paweł Haensel
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