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Binary black hole (BBH) mergers,, an important source of gravitational-waves(GWs), are assumed to be hosted in galaxies. The probability of a galaxy to host a BBH is related to its properties, for example stellar mass and star formation…

Cosmology and Nongalactic Astrophysics · Physics 2025-08-22 Zhuotao Li , Rachel Gray , Ik Siong Heng

We present the first joint gravitational-wave cosmological inference with LISA extreme mass-ratio inspirals at $z\lesssim1$ (galaxy redshifts) and massive black hole binaries at $z\gtrsim1$ (electromagnetic counterparts). Combining these…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-26 Danny Laghi , Nicola Tamanini , Alberto Sesana , Jonathan Gair , Enrico Barausse , Chiara Caprini , Walter Del Pozzo , Alberto Mangiagli , Sylvain Marsat

The number of observed gravitational wave (GW) events is growing fast thanks to rapidly improving detector sensitivities. GWs from compact binary coalescences like Black Holes or Neutron Stars behave like standard sirens and can be used as…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-17 Giona Sala , Alessandro Cuoco , Julien Lesgourgues , Kostantinos-Rafail Revis , Lorenzo Valbusa Dall'Armi , Santiago Casas

Measurements of multiple harmonic modes in the gravitational wave signals from binary black hole events could provide an accurate test of general relativity, however they have never been observed before. The sub-dominant modes, other than…

General Relativity and Quantum Cosmology · Physics 2019-01-29 Brendan D. O'Brien , Carlos F. Da Silva Costa , Sergey Klimenko

The Laser Interferometer Space Antenna (LISA) gravitational-wave (GW) observatory will be limited in its ability to detect mergers of binary black holes (BBHs) in the stellar-mass range. A future ground-based detector network, meanwhile,…

High Energy Astrophysical Phenomena · Physics 2018-12-26 Kaze W. K. Wong , Ely D. Kovetz , Curt Cutler , Emanuele Berti

In the coming decades, the space-based gravitational-wave (GW) detectors such as Taiji, TianQin, and LISA are expected to form a network capable of detecting millihertz GWs emitted by the mergers of massive black hole binaries (MBHBs). In…

Cosmology and Nongalactic Astrophysics · Physics 2024-01-02 Shang-Jie Jin , Ye-Zhu Zhang , Ji-Yu Song , Jing-Fei Zhang , Xin Zhang

The inspiral and merger of black-hole binary systems are a promising source of gravitational waves. The most effective method to look for a signal with a well understood waveform, such as the binary black hole signal, is matched filtering…

General Relativity and Quantum Cosmology · Physics 2014-05-15 Larne Pekowsky , James Healy , Deirdre Shoemaker , Pablo Laguna

We investigate the impact of gravitational wave (GW) dephasing due to gas accretion on the subtraction of massive black hole (MBH) binary signals over 4 yr of LISA data in the context of the global-fit. Based on state of the art predictions…

General Relativity and Quantum Cosmology · Physics 2026-03-10 Lorenz Zwick

We examine the nHz gravitational wave (GW) foreground of stars and black holes (BHs) orbiting SgrA* in the Galactic Center. A cusp of stars and BHs generates a continuous GW spectrum below 40 nHz; individual BHs within 1 mpc to SgrA* stick…

Astrophysics of Galaxies · Physics 2015-05-30 Bence Kocsis , Alak Ray , Simon Portegies Zwart

We present a first-stage study of the effect of using knowledge from electromagnetic (EM) observations in the gravitational wave (GW) data analysis of Galactic binaries that are predicted to be observed by the new Laser Interferometer Space…

Instrumentation and Methods for Astrophysics · Physics 2015-06-05 Sweta Shah , Marc van der Sluys , Gijs Nelemans

Besides the transient effect, the passage of a gravitational wave also causes a persistent displacement in the relative position of an interferometer's test masses through the \emph{nonlinear memory effect}. This effect is generated by the…

General Relativity and Quantum Cosmology · Physics 2023-06-29 Silvia Gasparotto , Rodrigo Vicente , Diego Blas , Alexander C. Jenkins , Enrico Barausse

Current searches for gravitational waves from coalescing binary black holes (BBH) use templates that only include the dominant harmonic. In this study we use effective-one-body multipolar waveforms calibrated to numerical-relativity…

General Relativity and Quantum Cosmology · Physics 2014-05-28 Collin Capano , Yi Pan , Alessandra Buonanno

We investigate the intrinsic and observational properties of $z\gtrsim 6$ galaxies hosting coalescing massive black holes (MBHs) that gives rise to gravitational waves (GWs) detectable with the Laser Interferometer Space Antenna (LISA). We…

Our current understanding is that an environment - mainly consisting of gas or stars - is required to bring massive black hole binaries (MBHBs) with total redshifted mass $M_z\sim[10^{4},10^7]~{\rm M}_\odot$ to the LISA band from parsec…

Astrophysics of Galaxies · Physics 2025-01-15 Mudit Garg , Laura Sberna , Lorenzo Speri , Francisco Duque , Jonathan Gair

Spin induced precessional modulations of gravitational wave signals from supermassive black hole binaries can improve the estimation of luminosity distance to the source by space based gravitational wave missions like the Laser…

General Relativity and Quantum Cosmology · Physics 2010-03-25 Adamantios Stavridis , K. G. Arun , Clifford M. Will

The most massive black holes in our Universe form binaries at the centre of merging galaxies. The recent evidence for a gravitational-wave (GW) background from pulsar timing may constitute the first observation that these supermassive black…

High Energy Astrophysical Phenomena · Physics 2024-08-09 Jakob Stegmann , Lorenz Zwick , Sander M. Vermeulen , Fabio Antonini , Lucio Mayer

Gravitational waves (GWs) from compact binary coalescences (CBCs) offer insights into the universe expansion. The spectral siren method, used without electromagnetic counterparts (EMC), infers cosmic expansion (Hubble constant) by relating…

General Relativity and Quantum Cosmology · Physics 2024-05-28 Grégoire Pierra

The gravitational wave (GW) antenna LISA will detect the signal from coalescing massive black hole binaries (MBHBs) of $\rm 10^4\,{-}\,10^7\, M_{\odot}$, providing clues on their formation and growth along cosmic history. Some of these…

Astrophysics of Galaxies · Physics 2023-09-20 David Izquierdo-Villalba , Monica Colpi , Marta Volonteri , Daniele Spinoso , Silvia Bonoli , Alberto Sesana

The advent of third-generation (3G) gravitational-wave (GW) detectors opens new opportunities for multi-messenger observations of binary neutron star merger events, holding significant potential for probing the history of cosmic expansion.…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-07 Tao Han , Ze Li , Jing-Fei Zhang , Xin Zhang

This paper analyses the impact of various parameter changes on the estimation of parameters for massive black hole binary (MBHB) systems using a Bayesian inference technique. Several designed MBHB systems were chosen for comparison with a…

Astrophysics of Galaxies · Physics 2024-01-24 Jie Gao , Yi-Ming Hu , En-Kun Li , Jian-dong Zhang , Jianwei Mei
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