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With the anticipated launch of space-based gravitational wave detectors, including LISA, TaiJi, TianQin, and DECIGO, expected around 2030, the detection of gravitational waves generated by intermediate-mass black hole binaries (IMBBHs)…

General Relativity and Quantum Cosmology · Physics 2023-12-14 Mengfei Sun , Jin Li

The future space based gravitational wave detector LISA (Laser Interferometer Space Antenna) will observe millions of Galactic binaries constantly present in the data stream. A small fraction of this population (of the order of several…

General Relativity and Quantum Cosmology · Physics 2024-02-22 Natalia Korsakova , Stanislav Babak , Michael L. Katz , Nikolaos Karnesis , Sviatoslav Khukhlaev , Jonathan R. Gair

We investigate the effect of spin-orbit and spin-spin couplings on the estimation of parameters for inspiralling compact binaries of massive black holes, and for neutron stars inspiralling into intermediate-mass black holes, using…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Emanuele Berti , Alessandra Buonanno , Clifford M. Will

The LISA Parameter Estimation (LISAPE) Taskforce was formed in September 2007 to provide the LISA Project with vetted codes, source distribution models, and results related to parameter estimation. The Taskforce's goal is to be able to…

We evaluate the cosmological coalescence and detection rates for massive black hole (MBH) binaries targeted by the gravitational wave observatory Laser Interferometer Space Antenna (LISA). Our calculation starts with a population of…

Astrophysics of Galaxies · Physics 2022-07-20 Kunyang Li , Tamara Bogdanović , David R. Ballantyne , Matteo Bonetti

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

Stellar-mass black-hole binaries are the most numerous gravitational-wave sources observed to date. Their properties make them suitable for observation both by ground- and space-based detectors. Starting from synthetic catalogues…

High Energy Astrophysical Phenomena · Physics 2025-05-29 R. Buscicchio , J. Torrado , C. Caprini , G. Nardini , N. Karnesis , M. Pieroni , A. Sesana

We introduce the use of deep learning ensembles for real-time, gravitational wave detection of spinning binary black hole mergers. This analysis consists of training independent neural networks that simultaneously process strain data from…

General Relativity and Quantum Cosmology · Physics 2020-12-21 Wei Wei , Asad Khan , E. A. Huerta , Xiaobo Huang , Minyang Tian

Coalescence of two massive black holes is the strongest and most promising source for LISA. In fact, gravitational signal from the end of inspiral and merger will be detectable throughout the Universe. In this article we describe the first…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Stanislav Babak

This paper presents a novel coherent multiband analysis framework for characterizing stellar- and intermediate-mass binary black holes using LISA and next-generation ground-based detectors (ET and CE), leveraging the latest developments in…

General Relativity and Quantum Cosmology · Physics 2025-07-24 Shichao Wu , Alexander H. Nitz , Ian Harry , Stanislav Babak , Michael J. Williams , Collin Capano , Connor Weaving

Using recent results from numerical relativity simulations of non-spinning binary black hole mergers we revisit the problem of detecting ringdown waveforms and of estimating the source parameters, considering both LISA and Earth-based…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Emanuele Berti , Jaime Cardoso , Vitor Cardoso , Marco Cavaglia

The Laser Interferometer Space Antenna is expected to observe gravitational waves from massive black hole binaries across cosmic time. Many are anticipated to be detectable hours to weeks before coalescence. We present a fast algorithm for…

Instrumentation and Methods for Astrophysics · Physics 2026-02-20 Francesco Nobili , Malvina Bellotti , Riccardo Buscicchio , Massimo Dotti , Alessandro Lupi

We estimate the rate at which the proposed space gravitational-wave interferometer LISA could detect intermediate-mass black-hole binaries, that is, binaries containing a black hole in the mass range 10 -- 100 Msun orbiting a black hole in…

Astrophysics · Physics 2009-11-10 Clifford M. Will

Electromagnetic observations have provided strong evidence for the existence of massive black holes in the center of galaxies, but their origin is still poorly known. Different scenarios for the formation and evolution of massive black…

General Relativity and Quantum Cosmology · Physics 2021-11-03 Alexandre Toubiana , Kaze W. K. Wong , Stanislav Babak , Enrico Barausse , Emanuele Berti , Jonathan R. Gair , Sylvain Marsat , Stephen R. Taylor

Now that LIGO has revealed the existence of a large number of binary black holes, identifying their origin becomes an important challenge. They might originate in more isolated regions of the galaxy or alternatively they might reside in…

General Relativity and Quantum Cosmology · Physics 2019-07-01 Lisa Randall , Zhong-Zhi Xianyu

The Laser Interferometer Space Antenna (LISA) is designed to detect gravitational wave signals from astrophysical sources, including those from coalescing binary systems of compact objects such as black holes. Colliding galaxies have…

General Relativity and Quantum Cosmology · Physics 2011-04-22 Joey Shapiro Key , Neil J. Cornish

The recent advanced LIGO detections of gravitational waves from merging binary black holes enhance the prospect of exploring binary evolution via gravitational-wave observations of a population of compact-object binaries. In the face of…

High Energy Astrophysical Phenomena · Physics 2017-01-25 Ilya Mandel , Will M. Farr , Andrea Colonna , Simon Stevenson , Peter Tiňo , John Veitch

Laser Interferometer Space Antenna (LISA) observations of massive black hole binaries (MBHBs) will provide long duration inspiral signals with high signal-to-noise ratio (SNR) data, ideal for testing general relativity (GR) in the…

General Relativity and Quantum Cosmology · Physics 2025-12-12 Manuel Piarulli , Sylvain Marsat , Elise M. Sänger , Alessandra Buonanno , Jan Steinhoff , Nicola Tamanini

The Laser Interferometer Space Antenna (LISA) will detect gravitational waves from the population of merging massive black holes binaries (MBHBs) throughout the Universe. The LISA data stream will feature many superposed signals from…

General Relativity and Quantum Cosmology · Physics 2025-07-02 Senwen Deng , Stanislav Babak , Sylvain Marsat

LISA is a planned space-based gravitational-wave (GW) detector that would be sensitive to waves from low-frequency sources, in the band of roughly $(0.03 - 0.1) {\rm mHz} \lesssim f \lesssim 0.1 {\rm Hz}$. This is expected to be an…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Scott A. Hughes