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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…

The possible formation of stellar-mass binary black holes through dynamical interactions in dense stellar environments predicts the existence of binaries with non-negligible eccentricity in the frequency band of ground-based gravitational…

广义相对论与量子宇宙学 · 物理学 2020-08-19 Antoni Ramos-Buades , Shubhanshu Tiwari , Maria Haney , Sascha Husa

Gravitational waves from coalescences of neutron stars or stellar-mass black holes into intermediate-mass black holes (IMBHs) of $\gtrsim 100$ solar masses represent one of the exciting possible sources for advanced gravitational-wave…

高能天体物理现象 · 物理学 2016-06-06 Carl-Johan Haster , Zhilu Wang , Christopher P. L. Berry , Simon Stevenson , John Veitch , Ilya Mandel

Eccentricity has emerged as a potentially useful tool for helping to identify the origin of black hole mergers. However, owing to the large number of harmonics required to compute the amplitude of an eccentric signal, eccentric templates…

高能天体物理现象 · 物理学 2022-01-26 Lisa Randall , Alexandra Shelest , Zhong-Zhi Xianyu

Stellar-mass black hole binaries (BHBs) in galactic nuclei are gravitationally perturbed by the central supermassive black hole (SMBH) of the host galaxy, potentially inducing strong eccentricity oscillations through the eccentric…

高能天体物理现象 · 物理学 2024-08-21 Alan M. Knee , Jess McIver , Smadar Naoz , Isobel M. Romero-Shaw , Bao-Minh Hoang , Evgeni Grishin

Using the \texttt{lalinference} Markov-chain Monte Carlo parameter estimation code, we examine two distinct nonprecessing black hole-neutron star (BH-NS) binaries with and without higher-order harmonics. Our simulations suggest that higher…

广义相对论与量子宇宙学 · 物理学 2014-03-26 R. O'Shaughnessy , B. Farr , E. Ochsner , Hee-Suk Cho , C. Kim , Chang-Hwan Lee

Orbital eccentricity is a crucial physical effect to unveil the origin of compact-object binaries detected by ground- and spaced-based gravitational-wave (GW) observatories. Here, we perform for the first time a Bayesian inference study of…

广义相对论与量子宇宙学 · 物理学 2023-09-28 Antoni Ramos-Buades , Alessandra Buonanno , Jonathan Gair

We assess the possibility of detecting both eccentricity and gas effects (migration and accretion) in the gravitational wave (GW) signal from LISA massive black hole binaries (MBHBs) at redshift $z=1$. Gas induces a phase correction to the…

星系天体物理 · 物理学 2025-01-16 Mudit Garg , Andrea Derdzinski , Shubhanshu Tiwari , Jonathan Gair , Lucio Mayer

Accurate modeling of gravitational-wave signals is essential for reliable inference of compact-binary source parameters, particularly for future space-based detectors operating in the milli- and deci-Hertz bands. In this work, we…

广义相对论与量子宇宙学 · 物理学 2026-01-13 Jin-Zhao Yang , Jia-Hao Zhong , Tao Yang

Space-based gravitational-wave observatories will detect the early inspiral of stellar-mass binary black holes and can track their eccentricity evolution. However, untargeted searches in the space band are computationally demanding and…

高能天体物理现象 · 物理学 2026-05-01 Han Wang , Michael J. Williams , Ian Harry , Yi-Ming Hu

Gravitational waves radiated by the coalescence of compact-object binaries containing a neutron star and a black hole are one of the most interesting sources for the ground-based gravitational-wave observatories Advanced LIGO and Advanced…

广义相对论与量子宇宙学 · 物理学 2014-05-21 Alexander H. Nitz , Andrew Lundgren , Duncan A. Brown , Evan Ochsner , Drew Keppel , Ian W. Harry

The dynamical evolution of binaries of intermediate-massive black holes (IMBHs, massive black holes with a mass ranging between $10^2$ and $10^4 M_{\odot}$) in stellar clusters has recently received an increasing amount of attention. This…

星系天体物理 · 物理学 2015-05-13 Pau Amaro-Seoane , Christoph Eichhorn , Edward K. Porter , Rainer Spurzem

Detection of gravitational waves (GW) from highly eccentric binary black hole (BBH) systems can provide insight into their dynamics and formation. To date, all of the LIGO-Virgo BBH detections have been made using quasi-circular templates…

广义相对论与量子宇宙学 · 物理学 2021-11-17 Belinda D. Cheeseboro , Paul T. Baker

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…

高能天体物理现象 · 物理学 2024-06-13 Han Wang , Ian Harry , Alexander Nitz , Yi-Ming Hu

Inspiralling black hole-neutron star (BH-NS) binaries emit a complicated gravitational wave signature, produced by multiple harmonics sourced by their strong local gravitational field and further modulated by the orbital plane's precession.…

广义相对论与量子宇宙学 · 物理学 2013-02-27 Hee-Suk Cho , Evan Ochsner , Richard O'Shaughnessy , Chunglee Kim , Chang-Hwan Lee

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…

广义相对论与量子宇宙学 · 物理学 2022-11-01 Tao Yang , Rong-Gen Cai , Zhoujian Cao , Hyung Mok Lee

The gravitational-wave signal from the neutron star-black hole (NSBH) merger GW200105 is consistent with this binary having significant orbital eccentricity close to merger. This raises the question of how eccentric NSBHs form. Compact…

高能天体物理现象 · 物理学 2026-03-11 Isobel Romero-Shaw , Jakob Stegmann , Gonzalo Morras , Andris Dorozsmai , Michael Zevin

Stellar-mass black hole binaries (SBHBs), like those currently being detected with the ground-based gravitational-wave (GW) observatories LIGO and Virgo, are also an anticipated GW source for LISA. LISA will observe them during the early…

广义相对论与量子宇宙学 · 物理学 2021-01-07 Alexandre Toubiana , Sylvain Marsat , Stanislav Babak , John Baker , Tito Dal Canton

Eccentricity of the inspiraling compact binaries can greatly improve the distance inference and source localization of dark sirens. In this paper, we continue the research for the space-borne atom interferometric gravitational-wave detector…

广义相对论与量子宇宙学 · 物理学 2022-10-19 Tao Yang , Rong-Gen Cai , Hyung Mok Lee

Inspiralling compact binaries are expected to circularize before their gravitational-wave signals reach the sensitive frequency band of ground-based detectors. Current searches for gravitational waves from compact binaries using the LIGO…

广义相对论与量子宇宙学 · 物理学 2010-04-06 Duncan A. Brown , Peter J. Zimmerman