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Related papers: Stellar Black Hole Binary Mergers in Open Clusters

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The growing number of black hole binary (BHB) mergers detected by the Laser Interferometer Gravitational-Wave Observatory (LIGO) have the potential to enable an unprecedented characterization of the physical processes and astrophysical…

High Energy Astrophysical Phenomena · Physics 2020-10-21 Oliver Anagnostou , Michele Trenti , Andrew Melatos

We model the dynamical evolution of primordial black holes (BHs) in dense star clusters using a simplified treatment of stellar dynamics in which the BHs are assumed to remain concentrated in an inner core, completely decoupled from the…

Several binary black holes (BBHs) have been observed using gravitational wave detectors. For the formation mechanism of BBHs, two main mechanisms, isolated binary evolution and dynamical formation in dense star clusters, have been…

High Energy Astrophysical Phenomena · Physics 2020-06-03 Jun Kumamoto , Michiko S. Fujii , Ataru Tanikawa

The recent discovery of GW150914, the binary black hole merger detected by Advanced LIGO, has the potential to revolutionize observational astrophysics. But to fully utilize this new window into the universe, we must compare these new…

High Energy Astrophysical Phenomena · Physics 2016-04-20 Carl L. Rodriguez , Sourav Chatterjee , Frederic A. Rasio

I investigate the roles of cluster dynamics and massive binary evolution in producing stellar-remnant binary black hole (BBH) mergers over the cosmic time. To that end, dynamical BBH mergers are obtained from long-term direct N-body…

High Energy Astrophysical Phenomena · Physics 2022-01-19 Sambaran Banerjee

Understanding binary black hole (BBH) dynamics in dense star clusters is key to interpreting the gravitational wave detections by LIGO and Virgo. Here, we perform $N$-body simulations of star clusters, focusing on BBH formation mechanisms,…

Astrophysics of Galaxies · Physics 2025-02-14 Jordan Barber , Fabio Antonini

Stellar-remnant black holes (BH) in dense stellar clusters comprise a natural setup to trigger general-relativistic (GR) inspiral and merger of binary black holes (BBH), detectable by the LISA and the LIGO-Virgo, through dynamical…

High Energy Astrophysical Phenomena · Physics 2018-10-10 Sambaran Banerjee

Dense stellar clusters are expected to house the ideal conditions for binary black hole (BBH) formation, both through binary stellar evolution and through dynamical encounters. We use theoretical arguments as well as $N$-body simulations to…

Astrophysics of Galaxies · Physics 2023-11-21 Jordan Barber , Debatri Chattopadhyay , Fabio Antonini

We investigate the dynamics of stellar-mass black holes (BH) in star clusters focusing on the dynamical formation of BH-BH binaries, which are very important sources of gravitational waves (GW). We examine the properties of these BH-BH…

Astrophysics of Galaxies · Physics 2011-02-24 Sambaran Banerjee

The high rate of black hole (BH) mergers detected by LIGO/Virgo opened questions on their astrophysical origin. One possibility is the dynamical channel, in which binary formation and hardening is catalyzed by dynamical encounters in…

Astrophysics of Galaxies · Physics 2018-10-24 Giacomo Fragione , Bence Kocsis

We study the dynamics of stellar-mass black holes (BH) in star clusters with particular attention to the formation of BH-BH binaries, which are interesting as sources of gravitational waves (GW). We examine the properties of these BH-BH…

Solar and Stellar Astrophysics · Physics 2015-05-14 Sambaran Banerjee , Holger Baumgardt , Pavel Kroupa

We discuss the properties of stellar mass black hole (BH) mergers induced by tidal encounters with a massive BH at galactic centres or potentially in dense star clusters. The tidal disruption of stellar binaries by a massive BH is known to…

High Energy Astrophysical Phenomena · Physics 2019-05-31 Joseph John Fernández , Shiho Kobayashi

Binary black holes (BBHs) are one of the endpoints of isolated binary evolution, and their mergers a leading channel for gravitational wave events. Here, using the evolutionary code \textsc{StarTrack}, we study the statistical properties of…

High Energy Astrophysical Phenomena · Physics 2018-04-19 Rosalba Perna , Martyna Chruslinska , Alessandra Corsi , Krzysztof Belczynski

The study of stellar-remnant black holes (BH) in dense stellar clusters is now in the spotlight, especially due to their intrinsic ability to form binary black holes (BBH) through dynamical encounters, that potentially coalesce via…

High Energy Astrophysical Phenomena · Physics 2017-11-08 Sambaran Banerjee

The predicted rate of binary black hole mergers from galactic fields can vary over several orders of magnitude and is extremely sensitive to the assumptions of stellar evolution. But in dense stellar environments such as globular clusters,…

High Energy Astrophysical Phenomena · Physics 2015-12-22 Carl L. Rodriguez , Meagan Morscher , Bharath Pattabiraman , Sourav Chatterjee , Carl-Johan Haster , Frederic A. Rasio

Primordial black hole (PBH) binaries experience strong gravitational perturbations in the case of their initial clustering, which significantly affects the dynamics of their mergers. In this work, we develop a new formalism to account for…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-09 Viktor Stasenko

The dynamical processes involving stellar-remnant black holes (BH) in stellar clusters has always drawn attention due to the BHs' potential in a number of astrophysical phenomena, especially the dynamical formation of binary black holes…

High Energy Astrophysical Phenomena · Physics 2017-01-18 Sambaran Banerjee

In this paper, we study the formation and dynamical evolution of black hole-black hole (BH-BH) binaries in young star clusters (YSCs), by means of N-body simulations. The simulations include metallicity-dependent recipes for stellar…

Astrophysics of Galaxies · Physics 2015-06-19 Brunetto Marco Ziosi , Michela Mapelli , Marica Branchesi , Giuseppe Tormen

We investigate properties of black hole (BH) binaries formed in globular clusters via dynamical processes, using direct N-body simulations. We pay attention to effects of BH mass function on the total mass and mass ratio distributions of BH…

High Energy Astrophysical Phenomena · Physics 2017-05-12 Dawoo Park , Chunglee Kim , Hyung Mok Lee , Yeong-Bok Bae , Chris Belczynski

In order to investigate the formation rate of binary black holes (BBHs) in stellar clusters with a mass comparable to open clusters, we performed a series of direct $N$-body simulations of open clusters with a mass of $2.5\times10^3$ (Model…

High Energy Astrophysical Phenomena · Physics 2019-04-24 Jun Kumamoto , Michiko S. Fujii , Ataru Tanikawa
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