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Related papers: Eccentricity or spin precession? Distinguishing su…

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Orbital eccentricity and spin precession are precious observables to infer the formation history of binary black holes with gravitational-wave data. We present a post-Newtonian, multi-timescale analysis of the binary dynamics able to…

General Relativity and Quantum Cosmology · Physics 2024-01-19 Giulia Fumagalli , Davide Gerosa

The increasing scope and breadth of gravitational wave detectors is providing the opportunity to explore new parameters in gravitational-wave astronomy. Eccentricity and spin-precession are two key observables to infer the origin of a…

General Relativity and Quantum Cosmology · Physics 2026-01-27 Snehal Tibrewal , Aaron Zimmerman , Jacob Lange , Deirdre Shoemaker

Resolving the formation channel(s) of merging binary black holes is a key goal in gravitational-wave astronomy. The orbital eccentricity is believed to be a precious tracer of the underlying formation pathway, but is largely dissipated…

High Energy Astrophysical Phenomena · Physics 2024-10-02 Giulia Fumagalli , Isobel Romero-Shaw , Davide Gerosa , Viola De Renzis , Konstantinos Kritos , Aleksandra Olejak

Gravitational-wave (GW) signals from coalescing compact binaries carry enormous information about the source dynamics and are an excellent tool to probe unknown astrophysics and fundamental physics. Though the updated catalog of compact…

General Relativity and Quantum Cosmology · Physics 2022-03-10 N V Krishnendu , Frank Ohme

The observation of gravitational waves from merging black holes and neutron stars provides a unique opportunity to discern information about their astrophysical environment. Two signatures that are considered powerful tracers to distinguish…

High Energy Astrophysical Phenomena · Physics 2026-03-18 Gonzalo Morras , Geraint Pratten , Patricia Schmidt

Given the absence of observations of black hole binaries, it is critical that the full range of accessible parameter space be explored in anticipation of future observation with gravitational wave detectors. To this end, we compile the…

General Relativity and Quantum Cosmology · Physics 2011-07-29 Janna Levin , Sean T. McWilliams , Hugo Contreras

The gravitational wave signal from merging compact binaries encodes information about their orbital and intrinsic properties. Over the last few years, state-of-the-art waveform models have begun to incorporate the effects of orbital…

High Energy Astrophysical Phenomena · Physics 2026-05-14 Natalie Malagon , Richard O'Shaughnessy

A typical stellar mass black hole with a lighter companion is shown to succumb to a chaotic precession of the orbital plane. As a result, the optimal candidates for the direct detection of gravitational waves by Earth based interferometers…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Janna Levin

Robustly measuring binary black hole spins via gravitational waves is key to understanding these systems' astrophysical origins, but remains challenging -- especially for high-mass systems, whose signals are short and dominated by the…

General Relativity and Quantum Cosmology · Physics 2025-11-20 Simona J. Miller , Maximiliano Isi , Katerina Chatziioannou , Vijay Varma , Sophie Hourihane

Compact object binaries formed from dynamics interactions will generically have non-zero orbital eccentricity. The gravitational waves from such binaries can change drastically depending on how large the eccentricity is, ranging from…

General Relativity and Quantum Cosmology · Physics 2021-08-31 Nicholas Loutrel

The gravitational-wave event GW231123_135430 is the heaviest binary black hole system observed by the LIGO--Virgo--KAGRA Collaboration to date, with the initial analysis indicating the individual black hole masses lie within or above the…

General Relativity and Quantum Cosmology · Physics 2026-04-21 Aasim Jan , Sophia Nicolella , Deirdre Shoemaker , Richard O'Shaughnessy

Detecting imprints of orbital eccentricity in GW signals promises to shed light on the formation mechanisms of binary black holes. To constrain formation mechanisms, distributions of eccentricity derived from numerical simulations of…

High Energy Astrophysical Phenomena · Physics 2025-02-05 Aditya Vijaykumar , Alexandra G. Hanselman , Michael Zevin

Gravitational wave detections offer insights into the astrophysical populations of black holes in the universe and their formation processes. Detections of binaries consisting of black holes lying outside the bulk distribution of the…

General Relativity and Quantum Cosmology · Physics 2023-06-12 Yumeng Xu , Eleanor Hamilton

In binary-black-hole systems where the black-hole spins are misaligned with the orbital angular momentum, precession effects leave characteristic modulations in the emitted gravitational waveform. Here, we investigate where in the parameter…

General Relativity and Quantum Cosmology · Physics 2021-06-16 Rhys Green , Charlie Hoy , Stephen Fairhurst , Mark Hannam , Francesco Pannarale , Cory Thomas

A gravitational wave (GW) signal carries imprints of the properties of its source. The ability to extract source properties crucially depends on our prior knowledge of the signal morphology. Even though binary black hole (BBH) mergers are…

General Relativity and Quantum Cosmology · Physics 2024-09-10 Divyajyoti

Accurate inclusion of both spin precession and orbital eccentricity effects in gravitational waveform models represents a key hurdle in our ability to fully characterize the properties of compact binaries. Virtually all efforts to model…

General Relativity and Quantum Cosmology · Physics 2026-04-01 Lucy M. Thomas , Katerina Chatziioannou , Sam Johar , Taylor Knapp , Michael Boyle

The detection of orbital eccentricity for a binary black hole system via gravitational waves is a key signature to distinguish between the possible binary origins. The identification of eccentricity has been difficult so far due to the…

General Relativity and Quantum Cosmology · Physics 2023-09-19 H. L. Iglesias , J. Lange , I. Bartos , S. Bhaumik , R. Gamba , V. Gayathri , A. Jan , R. Nowicki , R. O'Shaughnessy , D. Shoemaker , R. Venkataramanan , K. Wagner

We investigate the detectability of sub-dominant spin effects in merging black-hole binaries using current gravitational-wave data. Using a phenomenological model that separates the spin dynamics into precession (azimuthal motion) and…

General Relativity and Quantum Cosmology · Physics 2023-05-29 Daria Gangardt , Davide Gerosa , Michael Kesden , Viola De Renzis , Nathan Steinle

Gravitational-wave observations of merging compact binaries hold the key to precision measurements of the objects' masses and spins. General-relativistic precession, caused by spins misaligned with the orbital angular momentum, is…

General Relativity and Quantum Cosmology · Physics 2020-10-28 Geraint Pratten , Patricia Schmidt , Riccardo Buscicchio , Lucy M. Thomas

Building initial conditions for generic binary black-hole evolutions without initial spurious eccentricity remains a challenge for numerical-relativity simulations. This problem can be overcome by applying an eccentricity-removal procedure…

General Relativity and Quantum Cosmology · Physics 2015-03-17 Alessandra Buonanno , Lawrence E. Kidder , Abdul H. Mroué , Harald P. Pfeiffer , Andrea Taracchini
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