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In the last five years, gravitational-wave astronomy has gone from a purely theoretical field into a thriving experimental science. Many gravitational-wave signals, emitted by stellar-mass binary black holes and binary neutron stars, have…

General Relativity and Quantum Cosmology · Physics 2022-01-11 Roberto Cotesta

In numerical evolutions of binary black holes (BBH) it is desirable to easily control the orbital eccentricity of the BBH, and the number of orbits completed by the binary through merger. This paper presents fitting formulae that allow to…

General Relativity and Quantum Cosmology · Physics 2012-10-11 Abdul H. Mroué , Harald P. Pfeiffer

Astrophysical population simulations predict that a subset of dynamically formed binary black holes (BBHs) may possess eccentricity $\gtrsim 0.1$ at a gravitational wave (GW) frequency of $10 \,\text{Hz}$. Presently, the LIGO-Virgo-KAGRA…

General Relativity and Quantum Cosmology · Physics 2024-12-31 Sajad A. Bhat , Pankaj Saini , Marc Favata , Chinmay Gandevikar , Chandra Kant Mishra , K. G. Arun

Observations of gravitational waves from inspiralling compact binaries using laser-interferometric detectors can provide accurate measures of parameters of the source. They can also constrain alternative gravitation theories. We analyse…

General Relativity and Quantum Cosmology · Physics 2009-10-22 Clifford M. Will

Accreting supermassive binary black holes (SMBBHs) are potential targets for multi-messenger astronomy as they emit gravitational waves (GW) while their environment emits electromagnetic (EM) waves. In order to get the most out of a joint…

High Energy Astrophysical Phenomena · Physics 2023-01-04 Raphaël Mignon-Risse , Peggy Varniere , Fabien Casse

Accurate extractions of the detected gravitational wave (GW) signal waveforms are essential to validate a detection and to probe the astrophysics behind the sources producing the GWs. This however could be difficult in realistic scenarios…

General Relativity and Quantum Cosmology · Physics 2021-09-20 Chayan Chatterjee , Linqing Wen , Foivos Diakogiannis , Kevin Vinsen

Black-hole (BH) binaries with single-BH masses m=5--20 Msun, moving on quasicircular orbits, are among the most promising sources for first-generation ground-based gravitational-wave (GW) detectors. Until now, the development of…

General Relativity and Quantum Cosmology · Physics 2014-11-17 Alessandra Buonanno , Yanbei Chen , Michele Vallisneri

One of the major assumptions in the search for gravitational wave signatures from massive and supermassive black hole binaries with LISA, is that these systems will have circularized before entering the LISA bandwidth. Current astrophysical…

General Relativity and Quantum Cosmology · Physics 2010-05-31 Edward K. Porter , Alberto Sesana

The localization and distance inference of gravitational waves are two crucial factors for dark sirens as precise probes of cosmology, astrophysics, and fundamental physics. In this Letter, for the first time we investigate the parameter…

General Relativity and Quantum Cosmology · Physics 2022-11-01 Tao Yang , Rong-Gen Cai , Zhoujian Cao , Hyung Mok Lee

The measurement of eccentricity would provide strong constraints on the formation channel of stellar-mass binary black holes. However, current ground-based gravitational wave detectors will, in most cases, not be able to measure…

High Energy Astrophysical Phenomena · Physics 2024-06-13 Han Wang , Ian Harry , Alexander Nitz , Yi-Ming Hu

With the goal of taking a step toward the construction of astrophysically realistic initial data for numerical simulations of black holes, we for the first time derive a family of fully general relativistic initial data based on…

General Relativity and Quantum Cosmology · Physics 2008-11-26 W. Tichy , B. Bruegmann , M. Campanelli , P. Diener

We improve the numerical kludge waveform model introduced in [1] in two ways. We extend the equations of motion for spinning black hole binaries derived by Saijo et al. [2] using spin-orbit and spin-spin couplings taken from perturbative…

General Relativity and Quantum Cosmology · Physics 2012-03-20 E. A. Huerta , Jonathan R. Gair , Duncan A. Brown

We present in this paper a Bayesian parameter estimation method for the analysis of interferometric gravitational wave observations of an inspiral of binary compact objects using data recorded simultaneously by a network of several…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Christian Röver , Renate Meyer , Gianluca M. Guidi , Andrea Viceré , Nelson Christensen

Gravitational waves (GW) emitted by binary systems allow us to perform precision tests of general relativity in the strong field regime. Ringdown signals allow for probing black hole mass and spin with high precision in GW astronomy. With…

General Relativity and Quantum Cosmology · Physics 2026-03-13 Song-Tao Liu , Tian-Yang Sun , Yu-Xin Wang , Yong-Xin Zhang , Shang-Jie Jin , Jing-Fei Zhang , Xin Zhang

Using the Reduced Basis approach, we efficiently compress and accurately represent the space of waveforms for non-precessing binary black hole inspirals, which constitutes a four dimensional parameter space (two masses, two spin…

General Relativity and Quantum Cosmology · Physics 2013-05-30 Frank Herrmann , Scott E. Field , Chad R. Galley , Evan Ochsner , Manuel Tiglio

In testing gravity a model-independent way, one of crucial tests is measuring the propagation speed of a gravitational wave (GW). In general relativity, a GW propagates with the speed of light, while in the alternative theories of gravity…

General Relativity and Quantum Cosmology · Physics 2016-06-22 Atsushi Nishizawa

The final inspiral phase in the evolution of a compact binary consisting of black holes and/or neutron stars is among the most probable events that a network of ground-based interferometric gravitational wave detectors is likely to observe.…

General Relativity and Quantum Cosmology · Physics 2009-12-30 R. P. Croce , Th. Demma , V. Pierro , I. M. Pinto , D. Churches , B. S. Sathyaprakash

Binary black hole mergers with asymmetric component masses are key targets for both third-generation ground-based and future space-based gravitational-wave (GW) detectors, offering unique access to the strong-field dynamics of gravity. The…

General Relativity and Quantum Cosmology · Physics 2025-12-17 Daiki Watarai , Kent Yagi , Shammi Tahura

Gravitational waves (GW), emanating from binary black holes (BBH), encode vital information about their source. GW signals enable us to deduce key properties of the BBH population across the universe, including mass, spin, and eccentricity…

General Relativity and Quantum Cosmology · Physics 2024-10-08 Muhammad Zeeshan , Richard O'Shaughnessy

Worldtube excision is a method of reducing computational burden in Numerical Relativity simulations of binary black holes in situations where there is a good analytical model of the geometry around (one or both of) the objects. Two such…

General Relativity and Quantum Cosmology · Physics 2025-09-04 Nikolas A. Wittek , Leor Barack , Harald P. Pfeiffer , Adam Pound , Nils Deppe , Lawrence E. Kidder , Alexandra Macedo , Kyle C. Nelli , William Throwe , Nils L. Vu
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