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相关论文: Eccentric Stellar-mass Binary Black Holes: Populat…

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The dynamical formation of binary black holes (BBHs) in globular clusters (GCs) may contribute significantly to the observed gravitational wave (GW) merger rate. Furthermore, LISA may detect many BBH sources from GCs at mHz frequencies,…

高能天体物理现象 · 物理学 2025-05-13 Zeyuan Xuan , Kyle Kremer , Smadar Naoz

The observed binary black hole (BBH) mergers indicate a large Galactic progenitor population continuously evolving from large orbital separations and low gravitational wave (GW) frequencies to the final merger phase. We investigate the…

高能天体物理现象 · 物理学 2019-04-19 Xiao Fang , Todd A. Thompson , Christopher M. Hirata

In paper I of this series we showed that a large percentage of the binary black hole (BBH) mergers that form through dynamical interactions in globular clusters will have significant eccentricity in the ~10^{-3}-10^{-1} Hz LISA band. In…

高能天体物理现象 · 物理学 2018-10-19 Daniel J. D'Orazio , Johan Samsing

Stellar mass binary black holes of unknown formation mechanism have been observed, motivating new methods for distinguishing distinct black hole populations. This work explores how the orbital eccentricity of stellar mass binary black holes…

广义相对论与量子宇宙学 · 物理学 2024-03-04 Nicholas DePorzio , Lisa Randall , Zhong-Zhi Xianyu

We present the first systematic study on how distant weak interactions impact the dynamical evolution of merging binary black holes (BBHs) in dense stellar clusters. Recent studies indicate that dense clusters are likely to significantly…

高能天体物理现象 · 物理学 2019-08-21 Johan Samsing , Adrian S. Hamers , Jacob G. Tyles

If binary intermediate-mass black holes (IMBHs; with masses between 100 and $10^4 \Msun$) form in dense stellar clusters, their inspiral will be detectable with the planned Laser Interferometer Space Antenna (LISA) out to several Gpc. Here…

太阳与恒星天体物理 · 物理学 2014-11-18 Pau Amaro-Seoane , Cole Miller , Marc Freitag

We estimate the population of eccentric gravitational wave (GW) binary black hole (BBH) mergers forming during binary-single interactions in globular clusters (GCs), using ~ 800 GC models that were evolved using the MOCCA code for star…

高能天体物理现象 · 物理学 2018-03-28 Johan Samsing , Abbas Askar , Mirek Giersz

The recent detections of GW150914 and GW151226 imply an abundance of stellar-mass binary-black-hole mergers in the local universe. While ground-based gravitational-wave detectors are limited to observing the final moments before a binary…

星系天体物理 · 物理学 2016-10-19 Katelyn Breivik , Carl L. Rodriguez , Shane L. Larson , Vassiliki Kalogera , Frederic A. Rasio

We construct evolutionary tracks for massive black hole binaries (MBHBs) embedded in a surrounding distribution of stars. The dynamics of the binary is evolved by taking into account the erosion of the central stellar cusp bound to the…

宇宙学与河外天体物理 · 物理学 2011-08-03 A. Sesana

We study the stellar binary black holes (BBHs) inspiralling/merging in galactic nuclei based on our numerical method GNC. We find that $3-40\%$ of all new born BBHs will finally merge due to various dynamical effects. In a five year's…

高能天体物理现象 · 物理学 2022-02-15 Fupeng Zhang , Xian Chen , Lijing Shao , Kohei Inayoshi

We derive the probability for a newly formed binary black hole (BBH) to undergo an eccentric gravitational wave (GW) merger during binary-single interactions inside a stellar cluster. By integrating over the hardening interactions such a…

高能天体物理现象 · 物理学 2018-05-30 Johan Samsing

Astrophysical formation channels of stellar-mass binary black holes (sBBHs) can induce significant orbital eccentricities in their early inspiral. We analyze the implications on the stochastic gravitational-wave background (SGWB) from…

广义相对论与量子宇宙学 · 物理学 2026-05-08 Ran Chen , Rohit S. Chandramouli , Federico Pozzoli , Riccardo Buscicchio , Enrico Barausse

We determine the main properties of the Galactic binary black hole (BBH) population detectable by LISA and strategies to distinguish them from the much more numerous white dwarf binaries. We simulate BBH populations based on cosmological…

星系天体物理 · 物理学 2020-03-18 Alberto Sesana , Astrid Lamberts , Antoine Petiteau

Many stellar-mass Black Holes (sBHs) are expected to orbit supermassive black holes at galactic centers. For galaxies with Active Galactic Nuclei (AGN), it is likely that the sBHs reside in a disk. We study the formation of sBH binaries via…

高能天体物理现象 · 物理学 2024-03-15 Barak Rom , Re'em Sari , Dong Lai

We show that nearly half of all binary black hole (BBH) mergers dynamically assembled in globular clusters have measurable eccentricities ($e>0.01$) in the LISA band ($10^{-2}$ Hz), when General Relativistic corrections are properly…

高能天体物理现象 · 物理学 2018-09-05 Johan Samsing , Daniel J. D'Orazio

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

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

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

We investigate the evolution of supermassive binary black holes (BBHs) in galaxies with realistic property distributions and the gravitational-wave (GW) radiation from the cosmic population of these BBHs. We incorporate a comprehensive…

高能天体物理现象 · 物理学 2020-07-24 Yunfeng Chen , Qingjuan Yu , Youjun Lu

The dynamical processing of black holes in the dense cores of globular clusters (GCs), makes them efficient factories for producing binary black holes (BBHs). Here we explore the population of BBHs that form dynamically in GCs and may be…

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