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We consider the formation of binary black hole mergers through the evolution of field massive triple stars. In this scenario, favorable conditions for the inspiral of a black hole binary are initiated by its gravitational interaction with a…

Astrophysics of Galaxies · Physics 2017-05-31 Fabio Antonini , Silvia Toonen , Adrian S. Hamers

The asymmetric emission of gravitational waves produced during the coalescence of a massive black hole (MBH) binary imparts a velocity "kick" to the system that can displace the hole from the center of its host. Here we study the…

Astrophysics of Galaxies · Physics 2015-05-19 Javiera Guedes , Piero Madau , Lucio Mayer , Simone Callegari

We revisit the three black hole scenario with numerical relativity techniques to study hierarchical configurations where the inner binary contains highly spinning black holes. We find that the merger time of the binary gets a delay (with a…

General Relativity and Quantum Cosmology · Physics 2024-06-19 Giuseppe Ficarra , Carlos O. Lousto

The growth of the supermassive black holes (BHs) that reside at the centres of most galaxies is intertwined with the physical processes that drive the formation of the galaxies themselves. The evolution of the relations between the mass of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 C. M. Booth , Joop Schaye

We examine how future gravitational-wave measurements from merging black holes (BHs) can be used to infer the shape of the black-hole mass function, with important implications for the study of star formation and evolution and the…

Cosmology and Nongalactic Astrophysics · Physics 2017-06-07 Ely D. Kovetz , Ilias Cholis , Patrick C. Breysse , Marc Kamionkowski

We discuss the latest results of numerical simulations following the orbital decay of massive black hole pairs in galaxy mergers. We highlight important differences between gas-poor and gas-rich hosts, and between orbital evolution taking…

Astrophysics of Galaxies · Physics 2017-06-28 Lucio Mayer

The majority of massive stars are found in close binaries which: (i) are prone to merge and (ii) are accompanied by another distant tertiary star (triples). Here, we study the evolution of the stellar post-merger binaries composed of the…

Astrophysics of Galaxies · Physics 2022-10-11 Jakob Stegmann , Fabio Antonini , Fabian R. N. Schneider , Vaibhav Tiwari , Debatri Chattopadhyay

Observational data show that the correlation between supermassive black holes (MBH) and galaxy bulge (Mbulge) masses follows a nearly linear trend, and that the correlation is strongest with the bulge rather than the total stellar mass…

Cosmology and Nongalactic Astrophysics · Physics 2010-02-16 Chien Y. Peng

Despite a decade's worth of gravitational wave observation, the origin of the binary black hole (BBH) mergers detected by the LIGO-VIRGO-Kagra (LVK) collaboration remains an open question. Towards assessing the feasibility and prevalence of…

High Energy Astrophysical Phenomena · Physics 2025-01-28 Yubo Su

The last decade of observational and theoretical developments in stellar and binary evolution provides an opportunity to incorporate major improvements to the predictions from populations synthesis models. We compute the Galactic merger…

High Energy Astrophysical Phenomena · Physics 2015-06-04 Michal Dominik , Krzysztof Belczynski , Christopher Fryer , Daniel Holz , Emanuele Berti , Tomasz Bulik , Ilya Mandel , Richard O'Shaughnessy

We report on key studies on the dynamics of black holes (BHs) in gas-rich galaxy mergers that underscore the vital role played by gas dissipation in promoting BH inspiral down to the smallest scales ever probed with use of high-resolution…

Astrophysics of Galaxies · Physics 2014-11-18 M. Colpi , S. Callegari , M. Dotti , L. Mayer

The putative ubiquity of massive black holes (MBH) at the center of galaxies, and the hierarchical progress of structure formation along the cosmic history, together necessarily imply the existence of a large population of cosmic MBH…

Astrophysics of Galaxies · Physics 2023-02-08 Francesco Bollati , Alessandro Lupi , Massimo Dotti , Francesco Haardt

We consider the spatial clustering of massive black hole (MBH) mergers, and discuss possible ways to use gravitational wave observations in the LISA and DECIGO/BBO range for obtaining cosmological and cosmogonical information. Constraints…

Astrophysics · Physics 2009-11-10 Kunihito Ioka , Peter Meszaros

We examine the pairing process of supermassive black holes (SMBHs) down to scales of 20-100 pc using a set of N-body/SPH simulations of binary mergers of disk galaxies with mass ratios of 1:4 and 1:10. Our numerical experiments are designed…

The fates of massive galaxies are tied to the evolution of their central supermassive black holes (BHs), due to the influence of AGN feedback. Correlations within simulated galaxy populations suggest that the masses of BHs are governed by…

Astrophysics of Galaxies · Physics 2023-11-08 Jonathan J. Davies , Andrew Pontzen , Robert A. Crain

We present a comprehensive parameter-space study of binary black hole (BBH) mergers using the SEOBNRv4\_opt waveform model. Our analysis spans $\sim 10^6$ simulated waveforms across a broad range of mass ratios \( q = \frac{m_1}{m_2} \in…

High Energy Astrophysical Phenomena · Physics 2025-12-19 İsmail Özbakır , Kadri Yakut

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 the hierarchical paradigm of galaxy formation, central massive black holes (MBHs) are expected to coalesce after the merger of their host galaxies. One of the main goals of the Laser Interferometer Space Antenna (LISA) is to constrain…

Gravitational wave detectors are observing an increasing number of binary black hole (BBH) mergers, revealing a bimodal mass distribution of BBHs, which hints at diverse formation histories for these systems. Using the rapid binary…

High Energy Astrophysical Phenomena · Physics 2025-10-10 Lei Li , Guoliang Lv , Chunhua Zhu , Sufen Guo , Hongwei Ge , Weimin Gu , Zhuowen Li , Xiaolong He

In this contributed paper I review our current knowledge of the local Black Hole (BH) scaling relations, and their impact on the determination of the local BH mass function. I particularly emphasize the remaining systematic uncertainties…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Francesco Shankar