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相关论文: A hybrid post-Newtonian -- effective-one-body sche…

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We produce gravitational waveforms for nonspinning compact binaries undergoing a quasicircular inspiral. Our approach is based on a two-timescale expansion of the Einstein equations in second-order self-force theory, which allows…

广义相对论与量子宇宙学 · 物理学 2023-08-16 Barry Wardell , Adam Pound , Niels Warburton , Jeremy Miller , Leanne Durkan , Alexandre Le Tiec

We construct an inspiral-merger-ringdown eccentric gravitational-wave (GW) model for binary black holes with non-precessing spins within the effective-one-body formalism. This waveform model, SEOBNRv4EHM, extends the accurate quasi-circular…

广义相对论与量子宇宙学 · 物理学 2022-03-02 Antoni Ramos-Buades , Alessandra Buonanno , Mohammed Khalil , Serguei Ossokine

We ascertain the effectiveness of the second post-Newtonian approximation to the gravitational waves emitted during the adiabatic inspiral of a compact binary system as templates for signal searches with kilometer-scale interferometric…

广义相对论与量子宇宙学 · 物理学 2009-12-30 Serge Droz , Eric Poisson

We introduce a new factorized and resummed waveform for circularized, nonspinning, compact binaries that leverages on the solution of the Teukolsky equation once mapped into a confluent Heun equation. The structure of the solution allows…

广义相对论与量子宇宙学 · 物理学 2026-02-10 Andrea Cipriani , Alessandro Nagar , Francesco Fucito , José Francisco Morales

We present IMRPhenomXODE, a new phenomenological frequency-domain waveform approximant for gravitational wave (GW) signals from precessing binary black holes (BBHs) with generic spin configurations. We build upon the success of…

广义相对论与量子宇宙学 · 物理学 2023-12-19 Hang Yu , Javier Roulet , Tejaswi Venumadhav , Barak Zackay , Matias Zaldarriaga

We present the state-of-the-art waveform model WaSABI-C for quasicircular inspirals of spinning black hole binaries with aligned or anti-aligned spins. Our model synthesizes the most up-to-date first- and second-order gravitational…

广义相对论与量子宇宙学 · 物理学 2025-10-21 Loïc Honet , Josh Mathews , Geoffrey Compère , Adam Pound , Barry Wardell , Gabriel Andres Piovano , Maarten van de Meent , Niels Warburton

We present a prescription for computing gravitational waveforms for the inspiral, merger and ringdown of non-spinning eccentric binary black hole systems. The inspiral waveform is computed using the post-Newtonian expansion and the merger…

广义相对论与量子宇宙学 · 物理学 2018-08-15 Ian Hinder , Lawrence E. Kidder , Harald P. Pfeiffer

We provide ready-to-use time-domain gravitational waveforms for spinning compact binaries with precession effects through 1.5PN order in amplitude and compute their mode decomposition using spin-weighted -2 spherical harmonics. In the…

广义相对论与量子宇宙学 · 物理学 2015-03-13 K. G. Arun , Alessandra Buonanno , Guillaume Faye , Evan Ochsner

Although the gravitational waves observed by advanced LIGO and Virgo are consistent with compact binaries in a quasi-circular inspiral prior to coalescence, eccentric inspirals are also expected to occur in Nature. Due to their complexity,…

广义相对论与量子宇宙学 · 物理学 2018-12-05 Blake Moore , Travis Robson , Nicholas Loutrel , Nicolas Yunes

The inference of binary neutron star properties from gravitational-wave observations requires the generation of millions of waveforms, each one spanning about three order of magnitudes in frequency range. Thus, waveform models must be…

广义相对论与量子宇宙学 · 物理学 2021-10-27 Rossella Gamba , Sebastiano Bernuzzi , Alessandro Nagar

Gravitational waves are produced by orbiting massive binary objects, such as black holes and neutron stars, and propagate as ripples in the very fabric of spacetime. As the waves carry off orbital energy, the two bodies spiral into each…

广义相对论与量子宇宙学 · 物理学 2019-02-20 Dillon Buskirk , Maria C. Babiuc Hamilton

We present the first attempt at calibrating the effective-one-body (EOB) model to accurate numerical-relativity simulations of spinning, non-precessing black-hole binaries. Aligning the EOB and numerical waveforms at low frequency over a…

广义相对论与量子宇宙学 · 物理学 2010-05-27 Yi Pan , Alessandra Buonanno , Luisa T. Buchman , Tony Chu , Lawrence E. Kidder , Harald P. Pfeiffer , Mark A. Scheel

We used two numerical models, namely the \texttt{CBwaves} and \texttt{SEOBNRE} algorithms, based on the post-Newtonian and effective-one-body approaches for binary black holes evolving on eccentric orbits. We performed 20.000 new…

广义相对论与量子宇宙学 · 物理学 2024-09-06 Balázs Kacskovics , Dániel Barta

We compute the instantaneous contributions to the spherical harmonic modes of gravitational waveforms from compact binary systems in general orbits up to the third post-Newtonian order. We further extend these results for compact binaries…

广义相对论与量子宇宙学 · 物理学 2015-05-12 Chandra Kant Mishra , K. G. Arun , Bala R. Iyer

The gravitational waveforms emitted during the adiabatic inspiral of precessing binaries with two spinning compact bodies of comparable masses, evaluated within the post-Newtonian approximation, can be reproduced rather accurately by the…

广义相对论与量子宇宙学 · 物理学 2014-11-17 Alessandra Buonanno , Yanbei Chen , Yi Pan , Michele Vallisneri

Binary neutron-star systems represent one of the most promising sources of gravitational waves. In order to be able to extract important information, notably about the equation of state of matter at nuclear density, it is necessary to have…

广义相对论与量子宇宙学 · 物理学 2011-10-13 Luca Baiotti , Thibault Damour , Bruno Giacomazzo , Alessandro Nagar , Luciano Rezzolla

Spinning neutron stars acquire a quadrupole moment due to their own rotation. This quadratic-in-spin, self-spin effect depends on the equation of state (EOS) and affects the orbital motion and rate of inspiral of neutron star binaries. We…

广义相对论与量子宇宙学 · 物理学 2019-02-13 Alessandro Nagar , Francesco Messina , Piero Rettegno , Donato Bini , Thibault Damour , Andrea Geralico , Sarp Akcay , Sebastiano Bernuzzi

We consider the motion of nonspinning, compact objects orbiting around a Kerr black hole with tidal couplings. The tide-induced quadrupole moment modifies both the orbital energy and outgoing fluxes, so that over the inspiral timescale…

广义相对论与量子宇宙学 · 物理学 2022-06-01 Xuefeng Feng , Zhenwei Lyu , Huan Yang

We present a new frequency-domain phenomenological model of the gravitational-wave signal from the inspiral, merger and ringdown of non-precessing (aligned-spin) black-hole binaries. The model is calibrated to 19 hybrid…

广义相对论与量子宇宙学 · 物理学 2016-02-10 Sebastian Khan , Sascha Husa , Mark Hannam , Frank Ohme , Michael Pürrer , Xisco Jiménez Forteza , Alejandro Bohé

In this paper, we present 52 new numerical-relativity (NR) simulations of black-hole-neutron-star merger (BHNS) mergers and employ the data to inform TEOBResumS-Dal\'i: a multipolar effective-one-body model also including precession and…

广义相对论与量子宇宙学 · 物理学 2025-07-02 Alejandra Gonzalez , Sebastiano Bernuzzi , Alireza Rashti , Francesco Brandoli , Rossella Gamba