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The closed-form solution of the 1.5 post-Newtonian (PN) accurate binary black hole (BBH) Hamiltonian system has proven to be difficult to obtain for a long time since its introduction in 1966. Closed-form solutions of the PN BBH systems…

广义相对论与量子宇宙学 · 物理学 2026-04-07 Rickmoy Samanta , Sashwat Tanay , Leo C. Stein

These lecture notes are based on Refs. arXiv:2110.15351, arXiv:2012.06586, and arXiv:1908.02927, which aim to give closed-form solutions to the spinning, eccentric binary black hole dynamics at 1.5PN via two different equivalent ways: (1)…

广义相对论与量子宇宙学 · 物理学 2023-05-25 Sashwat Tanay

Recent gravitational wave (GW) detections showing signatures of eccentricity and spin precession underscore the need to model binary black holes (BBHs) possessing these features simultaneously. Most efforts over the past fifteen years to…

广义相对论与量子宇宙学 · 物理学 2026-04-13 Tom Colin , Sashwat Tanay , Laura Bernard

Accurate and efficient modeling of the dynamics of binary black holes (BBHs) is crucial to their detection and parameter estimation through gravitational waves, both with LIGO/Virgo and LISA. General BBH configurations will have misaligned…

广义相对论与量子宇宙学 · 物理学 2021-03-26 Sashwat Tanay , Leo C. Stein , José T. Gálvez Ghersi

We investigate the (conservative) dynamics of binary black holes using the Hamiltonian formulation of the post-Newtonian (PN) equations of motion. The Hamiltonian we use includes spin-orbit coupling, spin-spin coupling, and mass…

广义相对论与量子宇宙学 · 物理学 2011-07-19 Michael D. Hartl , Alessandra Buonanno

Recent astrophysical models predict that stellar-mass binary black holes (BBHs) could form and coalesce within a few gravitational radii of a supermassive black hole (SMBH). Detecting the gravitational waves (GWs) from such systems requires…

高能天体物理现象 · 物理学 2024-02-06 Zhongfu Zhang , Xian Chen

The motion of compact binaries is influenced by the spin of their components starting at the 1.5 post-Newtonian (PN) order. On the other hand, in the large mass ratio limit, the spin of the lighter object appears in the equations of motion…

广义相对论与量子宇宙学 · 物理学 2025-05-26 Vojtěch Witzany , Viktor Skoupý , Leo C. Stein , Sashwat Tanay

As gravitational wave astronomy has entered an era of routine detections, it becomes increasingly important to precisely measure the physical parameters of individual events and infer population properties. Eccentricity is a key observable,…

广义相对论与量子宇宙学 · 物理学 2025-11-10 Yi-Fan Wang , Alexander H. Nitz

We introduce a gravitational waveform inversion strategy that discovers mechanical models of binary black hole (BBH) systems. We show that only a single time series of (possibly noisy) waveform data is necessary to construct the equations…

广义相对论与量子宇宙学 · 物理学 2021-11-10 Brendan Keith , Akshay Khadse , Scott E. Field

Numerical simulations of star clusters with black holes find that there is only a single dynamically active binary black hole (BBH), at odds with the theoretical expectation of ~5 dynamically formed - or, commonly referred to as three-body…

星系天体物理 · 物理学 2025-07-02 Daniel Marín Pina , Mark Gieles , Tomas Andrade , Alessandro A. Trani

Detection of gravitational waves from compact binaries involving at least one intermediate mass black hole, and component mass ratios in the range $0.1$-$10^{-4}$, are among the primary sources for future space detectors with target strain…

广义相对论与量子宇宙学 · 物理学 2026-02-25 M Laxman , Ryuichi Fujita , Chandra Kant Mishra

The orbital motion of inspiralling and coalescing black hole binaries can be investigated using a variety of approximation schemes and numerical methods within general relativity: post-Newtonian expansions, black hole perturbation theory,…

广义相对论与量子宇宙学 · 物理学 2011-10-03 Alexandre Le Tiec

The most general bound binary black hole (BBH) system has an eccentric orbit and precessing spins. The detection of such a system with significant eccentricity close to the merger would be a clear signature of dynamical formation. In order…

广义相对论与量子宇宙学 · 物理学 2025-12-12 Khun Sang Phukon , Nathan K. Johnson-McDaniel , Amitesh Singh , Anuradha Gupta

Orbital eccentricity remains one of the least accessible parameters in observations of binary black hole (BBH) systems, largely erased by gravitational radiation long before detection. We introduce a new method to recover this lost…

高能天体物理现象 · 物理学 2025-12-29 Vishal Baibhav

The dynamics of precessing binary black holes (BBHs) in the post-Newtonian regime has a strong timescale hierarchy: the orbital timescale is very short compared to the spin-precession timescale which, in turn, is much shorter than the…

广义相对论与量子宇宙学 · 物理学 2015-09-16 Davide Gerosa , Michael Kesden , Ulrich Sperhake , Emanuele Berti , Richard O'Shaughnessy

Binary black holes (BBHs) in eccentric orbits produce distinct modulations in gravitational waves (GWs); measuring orbital eccentricity provides evidence for dynamical binary formation channels. We analyze 57 GW events from the…

Eccentric binary black holes (BBHs) formed through dynamical interactions can significantly contribute to gravitational wave (GW) detections. In this work, we present a simulated catalog of dynamically-formed, stellar-mass BBHs in the local…

高能天体物理现象 · 物理学 2026-05-28 Zeyuan Xuan , Smadar Naoz , Kyle Kremer , Michael L. Katz , Bence Kocsis , Erez Michaely

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…

广义相对论与量子宇宙学 · 物理学 2011-07-29 Janna Levin , Sean T. McWilliams , Hugo Contreras

We quantify for the first time the gravitational wave (GW) phase shift appearing in the waveform of eccentric binary black hole (BBH) mergers formed dynamically in three-body systems. For this, we have developed a novel numerical method…

高能天体物理现象 · 物理学 2024-03-12 Johan Samsing , Kai Hendriks , Lorenz Zwick , Daniel J. D'Orazio , Bin Liu

We present gravitational waveforms for the last orbits and merger of black-hole-binary (BBH) systems along two branches of the BBH parameter space: equal-mass binaries with equal non-precessing spins, and nonspinning unequal-mass binaries.…

广义相对论与量子宇宙学 · 物理学 2010-12-24 Mark Hannam , Sascha Husa , Frank Ohme , Doreen Mueller , Bernd Bruegmann
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