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Neutron stars in astrophysical binary systems represent exciting sources for multi-messenger astrophysics. A potential source of electromagnetic transients from compact binary systems is the neutron star ocean, the external fluid layer…

High Energy Astrophysical Phenomena · Physics 2023-02-03 Andrew G. Sullivan , Lucas M. B. Alves , Georgina O. Spence , Isabella P. Leite , Doğa Veske , Imre Bartos , Zsuzsa Márka , Szabolcs Márka

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…

General Relativity and Quantum Cosmology · Physics 2024-01-05 Pantelis Pnigouras , Fabian Gittins , Amlan Nanda , Nils Andersson , David Ian Jones

An important stage in the evolution of massive binaries is the formation of a compact object in the system. It is believed that in some cases a momentum kick is imparted to the newly born object, changing the orbital parameters of the…

Solar and Stellar Astrophysics · Physics 2023-02-03 A. Simaz Bunzel , F. García , J. A. Combi , F. Fortin , S. Chaty

Measurements of the properties of binary neutron star systems from gravitational-wave observations require accurate theoretical models for such signals. However, current models are incomplete, as they do not take into account all of the…

General Relativity and Quantum Cosmology · Physics 2018-11-07 Reetika Dudi , Francesco Pannarale , Tim Dietrich , Mark Hannam , Sebastiano Bernuzzi , Frank Ohme , Bernd Bruegmann

The oscillation modes of neutron star (NS) merger remnants, as encoded by the kHz postmerger gravitational wave (GW) signal, hold great potential for constraining the as-yet undetermined equation of state (EOS) of dense nuclear matter.…

General Relativity and Quantum Cosmology · Physics 2025-02-28 Jamie Bamber , Antonios Tsokaros , Milton Ruiz , Stuart L. Shapiro

We develop a semi-analytical approach, based on the post-Newtonian expansion and on the affine approximation, to model the tidal deformation of neutron stars in the coalescence of black hole-neutron star or neutron star-neutron star…

General Relativity and Quantum Cosmology · Physics 2015-06-03 V. Ferrari , L. Gualtieri , A. Maselli

Tidal interactions influence the orbital motions of binary star systems and extrasolar planets alike. Tides also affect stellar and planetary rotation rates. We demonstrate that in addition to altering spin synchronization and…

Solar and Stellar Astrophysics · Physics 2026-01-13 Janosz W. Dewberry

This paper describes the different steps to include the adiabatic tidal effects to the gravitational waveform amplitude for quasi-circular non-spinning compact binaries up to the second-and-a-half post-Newtonian (PN) order. The amplitude,…

General Relativity and Quantum Cosmology · Physics 2025-04-18 Eve Dones , Quentin Henry , Laura Bernard

The dynamical tide can play an important role in the orbital motion of close eccentric double white dwarf binaries. As the launching of the space-based gravitational-wave detector, the Laser Interferometer Space Antenna (LISA), is just…

General Relativity and Quantum Cosmology · Physics 2024-05-24 Shu Yan Lau , Kent Yagi , Phil Arras

In some short gamma-ray bursts, precursor flares occurring $\sim$ seconds prior to the main episode have been observed. These flares may then be associated with the last few cycles of the inspiral when the orbital frequency is a few hundred…

High Energy Astrophysical Phenomena · Physics 2021-09-22 Hao-Jui Kuan , Arthur G. Suvorov , Kostas D. Kokkotas

We compare dynamics and waveforms from binary neutron star coalescence as computed by new long-term ($\sim 10 $ orbits) numerical relativity simulations and by the tidal effective-one-body (EOB) model including analytical tidal corrections…

General Relativity and Quantum Cosmology · Physics 2013-04-25 Sebastiano Bernuzzi , Alessandro Nagar , Marcus Thierfelder , Bernd Bruegmann

As gravitational wave instrumentation becomes more sensitive, it is interesting to speculate about subtle effects that could be analyzed using upcoming generations of detectors. One such effect that has great potential for revealing the…

High Energy Astrophysical Phenomena · Physics 2017-03-08 Cecilia Chirenti , Roman Gold , M. Coleman Miller

Tidal interactions play an important role in many astrophysical systems, but uncertainties regarding the tides of rapidly rotating, centrifugally distorted stars and gaseous planets remain. We have developed a precise method for computing…

Earth and Planetary Astrophysics · Physics 2023-04-12 Janosz W. Dewberry , Dong Lai

As the observed occurrence for planets or stellar companions orbiting low and intermediate-mass evolved stars is increasing, so does the importance of understanding and evaluating the strength of their interactions. One of the fundamental…

Solar and Stellar Astrophysics · Physics 2024-10-23 M. Esseldeurs , S. Mathis , L. Decin

We compute the gravitational-wave (GW) energy flux up to the next-to-next-to-leading (NNL) order of tidal effects in a spinless compact binary system on quasi-circular orbits. Starting from an effective matter action, we obtain the…

General Relativity and Quantum Cosmology · Physics 2024-11-15 Quentin Henry , Guillaume Faye , Luc Blanchet

Accurately modeling the tidal response of neutron stars is crucial to connecting gravitational wave observations of binaries to ultra-dense nuclear physics. Most current models of the tidal response of relativistic stars either assume a…

General Relativity and Quantum Cosmology · Physics 2024-05-24 Abhishek Hegade K. R. , Justin L. Ripley , Nicolás Yunes

We follow the evolution of compact binaries under the coupled effect of tides and stellar winds until the onset of Roche-lobe overflow. These binaries contain a compact object (either a black-hole, a neutron-star, or a planet) and a stellar…

Solar and Stellar Astrophysics · Physics 2015-06-22 Serena Repetto , Gijs Nelemans

Recent observation of the tidally-excited stellar oscillations in the main-sequence binary KOI-54 by the KEPLER satellite provides a unique opportunity for studying dynamical tides in eccentric binary systems. We develop a general theory of…

Solar and Stellar Astrophysics · Physics 2015-05-28 Jim Fuller , Dong Lai

We constrain the fundamental-mode ($f$-mode) oscillation frequencies of nonrotating neutron stars using a phenomenological Gaussian process model for the unknown dense-matter equation of state conditioned on a suite of gravitational-wave,…

High Energy Astrophysical Phenomena · Physics 2026-01-01 Sailesh Ranjan Mohanty , Utkarsh Mali , H. C. Das , Bharat Kumar , Philippe Landry

We study the tidal response of rotating solar mass stars, as well as more massive rotating stars, of different ages in the context of tidal captures leading to either giant exoplanets on close in orbits, or the formation of binary systems…

Solar and Stellar Astrophysics · Physics 2015-06-16 S. V. Chernov , J. C. B. Papaloizou , P. B. Ivanov