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The Advanced LIGO and Virgo detectors have now observed approximately 50 black-hole-binary mergers, from which we can begin to infer how rapidly astrophysical black holes spin. The LIGO-Virgo Collaboration (LVC) analysis of detections up to…

广义相对论与量子宇宙学 · 物理学 2022-04-26 Charlie Hoy , Stephen Fairhurst , Mark Hannam , Vaibhav Tiwari

The recent detection of gravitational waves indicates that stellar-mass black hole binaries are likely to be a key population of sources for forthcoming observations. With future upgrades, ground-based detectors could detect merging black…

宇宙学与河外天体物理 · 物理学 2017-02-15 Liang Dai , Tejaswi Venumadhav , Kris Sigurdson

The dynamical formation of stellar-mass black hole-black hole binaries has long been a promising source of gravitational waves for the Laser Interferometer Gravitational-Wave Observatory (LIGO). Mass segregation, gravitational focusing, and…

高能天体物理现象 · 物理学 2016-06-30 Ryan M. O'Leary , Yohai Meiron , Bence Kocsis

Following a major upgrade, the two advanced detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO) held their first observation run between September 2015 and January 2016. With a strain sensitivity of…

广义相对论与量子宇宙学 · 物理学 2016-04-06 The LIGO Scientific Collaboration , The Virgo Collaboration

The comoving mass density of massive black hole (MBH) remnants from pre-galactic star formation could have been similar in magnitude to the mass-density of supermassive black holes (SMBHs) in the present-day universe. We show that the…

天体物理学 · 物理学 2010-12-09 Stuart Wyithe , Abraham Loeb

The detection of an intermediate-mass black hole population ($10^2-10^6$ $M_{\odot}$) will provide clues to their formation environments (e.g., disks of active galactic nuclei, globular clusters) and illuminate a potential pathway to…

广义相对论与量子宇宙学 · 物理学 2023-03-06 Avi Vajpeyi , Rory Smith , Eric Thrane , Gregory Ashton , Thomas Alford , Sierra Garza , Maximiliano Isi , Jonah Kanner , T. J. Massinger , Liting Xiao

Motivated by the recent detection of gravitational waves from the black hole binary merger GW150914, we study the dynamical evolution of black holes in galactic nuclei where massive star clusters reside. With masses of ~10^7M_Sun and sizes…

高能天体物理现象 · 物理学 2016-11-15 Fabio Antonini , Frederic A. Rasio

As the ground-based gravitational-wave telescopes LIGO, Virgo, and GEO 600 approach the era of first detections, we review the current knowledge of the coalescence rates and the mass and spin distributions of merging neutron-star and…

高能天体物理现象 · 物理学 2015-03-13 Ilya Mandel , Richard O'Shaughnessy

We are living through the dawn of the era of gravitational wave astronomy. Our first glances through this new window upon the sky has revealed a new population of objects. Since it first began observing in late 2015, the advanced Laser…

广义相对论与量子宇宙学 · 物理学 2017-12-08 Daniel Wysocki

We study how the angular resolution of LISA for merging massive black-hole binaries would be improved if we observe multiple gravitational wave ``images'' due to strong gravitational lensing. The correlation between fitting parameters is…

天体物理学 · 物理学 2009-11-07 Naoki Seto

The discovery of gravitational-wave (GW) signals, produced by the coalescence of stellar-mass binary black holes (SBBHs), opens a new window to study the astrophysical origins and dynamical evolutions of compact binaries. In addition, these…

宇宙学与河外天体物理 · 物理学 2020-10-07 Jiming Yu , Yu Wang , Wen Zhao , Youjun Lu

A small fraction of gravitational-wave (GW) signals from binary black holes (BBHs) will be gravitationally lensed by intervening galaxies and galaxy clusters. Strong lensing will produce multiple identical copies of the GW signal arriving…

广义相对论与量子宇宙学 · 物理学 2026-02-09 Koustav N. Maity , Souvik Jana , Tejaswi Venumadhav , Ankur Barsode , Parameswaran Ajith

Gravitational waves (GWs) from binary black hole mergers provide unique opportunities for cosmological inference such as standard sirens. However, the accurate determination of the luminosity distance of the event is limited by the…

广义相对论与量子宇宙学 · 物理学 2023-10-24 Qianyun Yun , Wen-Biao Han , Qian Hu , Haiguang Xu

The detection of gravitational waves from merging black holes with masses $\sim\,80-150\,\mathrm{M_\odot}$ suggests that some proportion of black hole binary systems form hierarchically in dense astrophysical environments, as most stellar…

宇宙学与河外天体物理 · 物理学 2025-10-08 Jordan Moncrieff , Fiona Panther

We consider the possibility that the black-hole (BH) binary detected by LIGO may be a signature of dark matter. Interestingly enough, there remains a window for masses $20\,M_\odot \lesssim M_{\rm bh} \lesssim 100\, M_\odot$ where…

We compute the two-dimensional correlation functions of the binary black hole coalescence detections in LIGO-Virgo's first and second observation runs. The sky distribution of binary black hole coalescence events is tested for correlations…

高能天体物理现象 · 物理学 2020-07-09 Marco Cavaglia , Ashini Modi

The stellar mass binary black hole (sBBH) mergers presently detected by LIGO may originate wholly or in part from binary black hole mergers embedded in disks of gas around supermassive black holes. Determining the contribution of these…

Finding the host galaxies of stellar-mass compact binary mergers will open a new window for studying their formation histories and measuring key cosmological parameters, such as the Hubble constant. To date, only one merger, GW170817, has…

宇宙学与河外天体物理 · 物理学 2026-05-01 Alberto Salvarese , Hsin-Yu Chen , Daniel E. Holz

With Advanced LIGO detecting the gravitational waves emitted from a pair of merging black holes in late 2015, we have a new perspective into the strong field regime of binary black hole systems. Event horizons are the defining features of…

广义相对论与量子宇宙学 · 物理学 2016-09-07 Andy Bohn , Lawrence E. Kidder , Saul A. Teukolsky

Soon after the observation of the first black hole binary (BHB) by advanced LIGO (aLIGO), GW150914, it was realised that such a massive system would have been observable in the milli-Hz (mHz) band few years prior to coalescence. Operating…

高能天体物理现象 · 物理学 2017-06-28 Alberto Sesana