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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 performed Population III (Pop III) binary evolution by using population synthesis simulations for seven different models. We found that Pop III binaries tend to be binary black holes (BBHs) with chirp mass $M_{\rm chirp} \sim…

High Energy Astrophysical Phenomena · Physics 2020-09-30 Tomoya Kinugawa , Takashi Nakamura , Hiroyuki Nakano

The gravitational waves generated during supermassive black hole (SMBH) coalescence are prime candidates for detection by the satellite LISA. We use the extended Press-Schechter formalism combined with empirically motivated estimates for…

Astrophysics · Physics 2009-11-10 Kirsty J. Rhook , J. Stuart B. Wyithe

Intermediate-mass black holes (IMBHs) span the approximate mass range $100$--$10^5\,M_\odot$, between black holes (BHs) formed by stellar collapse and the supermassive BHs at the centers of galaxies. Mergers of IMBH binaries are the most…

High Energy Astrophysical Phenomena · Physics 2022-03-16 The LIGO Scientific Collaboration , the Virgo Collaboration , the KAGRA Collaboration

Future space-based laser interferometric detectors, such as LISA, will be able to detect gravitational waves (GWs) generated during the inspiral phase of stellar-mass binary black holes (SmBBHs). The detection and characterization of GWs…

Instrumentation and Methods for Astrophysics · Physics 2025-02-04 Yao Fu , Yan Wang , Soumya D. Mohanty

We study the effect of torques on circular inspirals of intermediate-mass black hole binaries (IMBHBs) embedded in gas discs, wherein both BH masses are in the range $10^2$-$10^5~\rm{M}_\odot$, up to redshift $z = 10$. We focus on how…

Astrophysics of Galaxies · Physics 2022-10-10 Mudit Garg , Andrea Derdzinski , Lorenz Zwick , Pedro R. Capelo , Lucio Mayer

The gravitational wave signals from coalescing Supermassive Black Hole Binaries are prime targets for the Laser Interferometer Space Antenna (LISA). With optimal data processing techniques, the LISA observatory should be able to detect…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Neil J. Cornish , Edward K. Porter

We characterize the expected statistical errors with which the parameters of black-hole binaries can be measured from gravitational-wave (GW) observations of their inspiral, merger and ringdown by a network of second-generation ground-based…

General Relativity and Quantum Cosmology · Physics 2016-12-07 Archisman Ghosh , Walter Del Pozzo , Parameswaran Ajith

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

We calculate the gravitational wave signal from the growth of 10 million solar mass supermassive black holes (SMBH) from the remnants of Population III stars. The assembly of these lower mass black holes is particularly important because…

Cosmology and Nongalactic Astrophysics · Physics 2010-04-30 Kelly Holley-Bockelmann , Miroslav Micic , Steinn Sigurdsson , Louis Rubbo

With the recent release of the second gravitational-wave transient catalogue (GWTC-2), which introduced dozens of new detections, we are at a turning point of gravitational wave astronomy, as we are now able to directly infer constraints on…

We study the impact of gas accretion on the orbital evolution of black-hole binaries initially at large separation in the band of the planned Laser Interferometer Space Antenna (LISA). We focus on two sources: (i)~stellar-origin black-hole…

High Energy Astrophysical Phenomena · Physics 2020-06-15 Andrea Caputo , Laura Sberna , Alexandre Toubiana , Stanislav Babak , Enrico Barausse , Sylvain Marsat , Paolo Pani

The Laser Interferometer Space Antenna (LISA), due for launch in the mid 2030s, is expected to observe gravitational waves (GW)s from merging massive black hole binaries (MBHB)s. These signals can last from days to months, depending on the…

Instrumentation and Methods for Astrophysics · Physics 2023-12-06 Connor R. Weaving , Laura K. Nuttall , Ian W. Harry , Shichao Wu , Alexander Nitz

Intermediate mass black holes (IMBHs) with a mass between $10^{2}$ and $10^{5}$ times that of the sun, which bridges the {mass gap between the} stellar-mass black holes and the supermassive black holes, are crucial in understanding the…

High Energy Astrophysical Phenomena · Physics 2017-05-05 Yun-Feng Liang , Yuan-Zhu Wang , Hao Wang , Xiang Li , Yi-Ming Hu , Zhi-Ping Jin , Yi-Zhong Fan , En-Wei Liang , Da-Ming Wei

Despite their potential role as massive seeds for quasars, in dwarf galaxy feedback, and in tidal disruption events, the observational evidence for intermediate-mass black holes (IMBHs) is scarce. LISA may observe stellar-mass black hole…

High Energy Astrophysical Phenomena · Physics 2022-07-13 Vladimir Strokov , Giacomo Fragione , Kaze W. K. Wong , Thomas Helfer , Emanuele Berti

The events detected by the LIGO Virgo KAGRA collaboration over a period of 10 years have yielded a treasure trove of signals from compact binary coalescences. None of these events have shown a confident signature of eccentricity. With…

General Relativity and Quantum Cosmology · Physics 2026-03-11 Johann Fernandes , Praveer Tiwari , Archana Pai

Next generation detectors, such as LISA, LGWA, and ET will, for the first time, probe the high redshift Universe, offering unique insight into the birth, growth, and dynamics of the first black holes (BHs) during their earliest stages…

Binary black hole (BBH) systems detected via gravitational-wave (GW) emission are a recently opened astrophysical frontier with many unknowns and uncertainties. Accurate reconstruction of the binary distribution with as few assumptions as…

High Energy Astrophysical Phenomena · Physics 2024-11-22 Jam Sadiq , Thomas Dent , Mark Gieles

Pulsar Timing Array (PTA) experiments worldwide recently reported evidence of a nHz stochastic gravitational wave background (sGWB) compatible with the existence of slowly inspiralling massive black hole (MBH) binaries (MBHBs). The shape of…

The gravitational waves (GW) emitted during the coalescence of supermassive black holes (SMBHs) in the mass range 10^4-10^7 M_sun will be detectable out to high redshifts with LISA. We calculate the size and orientation of the…

Astrophysics · Physics 2009-11-11 B. Kocsis , Z. Frei , Z. Haiman , K. Menou