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相关论文: TEOBResumS: assessment of consistent next-to-quasi…

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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…

广义相对论与量子宇宙学 · 物理学 2013-04-25 Sebastiano Bernuzzi , Alessandro Nagar , Marcus Thierfelder , Bernd Bruegmann

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 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 perform new longterm (15-16 orbits) simulations of coalescing binary neutron stars in numerical relativity using an updated Einstein's equation solver, employing low-eccentricity initial data, and modeling the neutron stars by a…

广义相对论与量子宇宙学 · 物理学 2015-04-01 Kenta Hotokezaka , Koutarou Kyutoku , Hirotada Okawa , Masaru Shibata

A new analytical approach to the motion and radiation of (comparable mass) binary systems has been introduced in 1999 under the name of Effective One Body (EOB) formalism. We review the basic elements of this formalism, and discuss some of…

广义相对论与量子宇宙学 · 物理学 2015-05-27 Thibault Damour

Spin precession is a generic feature of compact binary coalescences, which leaves clear imprints in the gravitational waveforms. Building on previous work, we present an efficient time domain inspiral-merger-ringdown effective-one-body…

广义相对论与量子宇宙学 · 物理学 2022-07-27 Rossella Gamba , Sarp Akçay , Sebastiano Bernuzzi , Jake Williams

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

This article presents a study of the sufficient accuracy of post-Newtonian and numerical relativity waveforms for the most demanding usage case: parameter estimation of strong sources in advanced gravitational wave detectors. For black hole…

广义相对论与量子宇宙学 · 物理学 2015-03-19 Ilana MacDonald , Samaya Nissanke , Harald P. Pfeiffer

In this paper we assess the performances of different analytical prescriptions for the effective-one-body (EOB) radiation reaction along generic planar orbits using exact numerical result in the test-mass limit. We consider three…

广义相对论与量子宇宙学 · 物理学 2022-05-20 Simone Albanesi , Alessandro Nagar , Sebastiano Bernuzzi , Andrea Placidi , Marta Orselli

Waveform models are important to gravitational wave data analysis. People recently pay much attention to the waveform model construction for eccentric binary black hole coalescence. Several Effective-One-Body Numerical-Relativity waveform…

广义相对论与量子宇宙学 · 物理学 2024-09-10 Xiaolin Liu , Zhoujian Cao , Zong-Hong Zhu

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

We present a new approach to factorize and resum the post-Newtonian (PN) waveform for generic equatorial motion to be used within effective-one-body (EOB) based waveform models. The new multipolar waveform factorization improves previous…

广义相对论与量子宇宙学 · 物理学 2022-06-01 Andrea Placidi , Simone Albanesi , Alessandro Nagar , Marta Orselli , Sebastiano Bernuzzi , Gianluca Grignani

We present SEOB-TML, an enhanced effective-one-body (EOB) framework for the test-mass limit, optimized for quasi-circular, spin-aligned binary black holes. On the dynamical side, we introduce a quadrupole-factorized (Q-factorized)…

广义相对论与量子宇宙学 · 物理学 2026-03-09 Nami Nishimura , Alessandra Buonanno , Guglielmo Faggioli , Maarten van de Meent , Gaurav Khanna

The two-body problem in General Relativity has been the subject of many analytical investigations. After reviewing some of the methods used to tackle this problem (and, more generally, the N-body problem), we focus on a new, recently…

广义相对论与量子宇宙学 · 物理学 2013-12-13 Thibault Damour

This paper is to introduce a new software called CBwaves which provides a fast and accurate computational tool to determine the gravitational waveforms yielded by generic spinning binaries of neutron stars and/or black holes on eccentric…

广义相对论与量子宇宙学 · 物理学 2013-02-13 Péter Csizmadia , Gergely Debreczeni , István Rácz , Mátyás Vasúth

Effective-one-body (EOB) numerical-relativity (NR) waveform models for spin-aligned binary black holes (BBHs), known as the SEOBNR waveform models, are based on the EOB theoretical framework and NR simulations. SEOBNR models have played an…

广义相对论与量子宇宙学 · 物理学 2020-03-04 Xiaolin Liu , Zhoujian Cao , Lijing Shao

Accurate waveform models for coalescing binaries on eccentric orbits are crucial for avoiding biases in the analysis of eccentric gravitational-wave signals. The effective-one-body (EOB) formalism combines various analytical approximation…

广义相对论与量子宇宙学 · 物理学 2025-08-25 Aldo Gamboa , Mohammed Khalil , Alessandra Buonanno

Expressions for the gravitational wave (GW) energy flux and center-of-mass energy of a compact binary are integral building blocks of post-Newtonian (PN) waveforms. In this paper, we compute the GW energy flux and GW frequency derivative…

广义相对论与量子宇宙学 · 物理学 2009-02-23 Michael Boyle , Alessandra Buonanno , Lawrence E. Kidder , Abdul H. Mroué , Yi Pan , Harald P. Pfeiffer , Mark A. Scheel

Characterizing eccentricity in gravitational waveforms in a consistent manner is crucial to facilitate parameter estimation, astrophysical population studies, as well as searches for these rare systems. We present a framework to…

广义相对论与量子宇宙学 · 物理学 2025-02-06 Tousif Islam , Tejaswi Venumadhav

Driven by advances in scattering amplitudes and worldline-based methods, recent years have seen significant progress in our ability to calculate gravitational two-body scattering observables. These observables effectively encapsulate the…

广义相对论与量子宇宙学 · 物理学 2024-11-21 Alessandra Buonanno , Gustav Mogull , Raj Patil , Lorenzo Pompili