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We perform a detailed study of the cosmological bias of gravitational gave (GW) events produced by binary black hole mergers (BBHM). We start from a BBHM distribution modeled inside the EAGLE hydrodyamical simulation using the population…

Cosmology and Nongalactic Astrophysics · Physics 2023-05-30 Matteo Peron , Sarah Libanore , Andrea Ravenni , Michele Liguori , Maria Celeste Artale

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…

High Energy Astrophysical Phenomena · Physics 2019-08-21 Johan Samsing , Adrian S. Hamers , Jacob G. Tyles

A literature compilation of nuclear star cluster (NSC) masses is used to study the correlation between global and nuclear properties. A comparison of observational data to the predictions of semi-analytical galaxy formation models places…

Astrophysics of Galaxies · Physics 2015-06-11 Fabio Antonini , Enrico Barausse , Joseph Silk

Supermassive black holes (SMBHs) are nowadays believed to reside in most local galaxies, and the available data show an empirical correlation between bulge luminosity - or stellar velocity dispersion - and black hole mass, suggesting a…

Astrophysics · Physics 2015-06-24 Marta Volonteri

We study the correlations between Supermassive Black Holes (BH) and their host galaxies, using a sample of 83 BH masses collected from the most recent and reliable spatially resolved estimates available from the literature. We confirm the…

Astrophysics of Galaxies · Physics 2019-09-25 Stefano de Nicola , Alessandro Marconi , Giuseppe Longo

We revisit the phases of the pairing and sinking of BHs in galaxy mergers and circunmunclear disks in light of the results of recent simulations with massive BHs embedded in predominantly gaseous backgrounds. After a general overview we…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Lucio Mayer

We have performed N-body simulations of globular clusters (GCs) in order to estimate a detection rate of mergers of Binary stellar-mass Black Holes (BBHs) by means of gravitational wave (GW) observatories. For our estimate, we have only…

Astrophysics of Galaxies · Physics 2015-06-16 Ataru Tanikawa

We analyze the dynamical evolution of binary stars that interact with a static background of single stars in the environment of a massive black hole (MBH). All stars are considered to be single mass, Newtonian point particles. We follow the…

Cosmology and Nongalactic Astrophysics · Physics 2009-08-03 Clovis Hopman

The study of the dynamical evolution of massive black hole pairs in mergers is crucial in the context of a hierarchical galaxy formation scenario. The timescales for the formation and the coalescence of black hole binaries are still poorly…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 M. Dotti , A. Sesana , R. Decarli

We investigated the evolution of the black hole binary formed by the merging of two galaxies each containing a central massive black hole. Our main goal here is to determine if the black hole binary can merge through the hardening by…

Astrophysics · Physics 2009-10-28 Junichiro Makino

We evaluate the redshift distribution of binary black hole (BBH), black hole - neutron star binary (BHNS) and binary neutron star (BNS) mergers, exploring the main sources of uncertainty: star formation rate (SFR) density, metallicity…

High Energy Astrophysical Phenomena · Physics 2021-02-12 Filippo Santoliquido , Michela Mapelli , Nicola Giacobbo , Yann Bouffanais , M. Celeste Artale

Gravitational-wave observations of binary black hole (BBH) systems point to black hole spin magnitudes being relatively low. These measurements appear in tension with high spin measurements for high-mass X-ray binaries (HMXBs). We use grids…

High Energy Astrophysical Phenomena · Physics 2022-10-20 Monica Gallegos-Garcia , Maya Fishbach , Vicky Kalogera , Christopher P L Berry , Zoheyr Doctor

We study the long-term orbital evolution of stars around a merging massive or supermassive black-hole (BH) binary, taking into account the general relativistic effect induced by the BH spin. When the BH spin is significant compared to and…

High Energy Astrophysical Phenomena · Physics 2022-05-02 Bin Liu , Dong Lai

We use a large sample of upper limits and accurate estimates of supermassive black holes masses coupled with libraries of host galaxy velocity dispersions, rotational velocities and photometric parameters extracted from Sloan Digital Sky…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 A. Beifiori , S. Courteau , E. M. Corsini , Y. Zhu

The evolution of main sequence binaries that reside in the Galactic Centre can be heavily influenced by the central supermassive black hole (SMBH). Due to these perturbative effects, the stellar binaries in dense environments are likely to…

Astrophysics of Galaxies · Physics 2018-01-18 Yi-Han Wang , Nathan Leigh , Ye-Fei Yuan , Rosalba Perna

The recent detection of the binary black hole merger GW150914 demonstrates the existence of black holes more massive than previously observed in X-ray binaries in our Galaxy. This article explores different scenarios of black hole formation…

High Energy Astrophysical Phenomena · Physics 2016-08-03 Irina Dvorkin , Elisabeth Vangioni , Joseph Silk , Jean-Philippe Uzan , Keith A. Olive

Supermassive binary black holes (SBBHs) are a natural outcome of galaxy mergers. Here we show that low-frequency ($f \leq 10^{-6}$ Hz) quasi-periodic variability observed from cosmic blazar sources can provide substantial inductive support…

Astrophysics · Physics 2008-11-26 Frank M. Rieger

We use a semi-analytic galaxy formation model to study the co-evolution of supermassive black holes (SMBHs) with their host galaxies. Although the coalescence of SMBHs is not important, the quasar-mode accretion induced by mergers plays a…

Astrophysics of Galaxies · Physics 2021-09-08 TianChi Zhang , Qi Guo , Yan Qu , Liang Gao

We review the current state of dynamical modeling for galaxies in terms of being able to measure both the central black hole mass and stellar orbital structure. Both of these must be known adequately to measure either property. The current…

Astrophysics · Physics 2007-05-23 Karl Gebhardt

The binding energy liberated by the coalescence of supermassive black hole (SMBH) binaries during galaxy mergers is thought to be responsible for the low density cores often found in bright elliptical galaxies. We use high-resolution…

Astrophysics of Galaxies · Physics 2021-11-24 Fani Dosopoulou , Jenny E. Greene , Chung-Pei Ma
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