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Observations of binary inspirals with LISA will allow us to place bounds on alternative theories of gravity and to study the merger history of massive black holes (MBH). These possibilities rely on LISA's parameter estimation accuracy. We…

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

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

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

Using the black hole merger rate inferred from LIGO, we calculate the abundance of tightly bound binary black holes in the Milky Way galaxy. Binaries with a small semimajor axis ($\lesssim 10 R_\odot$) originate at larger separations…

High Energy Astrophysical Phenomena · Physics 2017-05-31 Pierre Christian , Abraham Loeb

Massive black-hole binaries will be the loudest sources detectable by LISA. These systems are predicted to form during the hierarchical assembly of cosmic structures and coalesce by interacting with the surrounding environment. The…

High Energy Astrophysical Phenomena · Physics 2025-01-09 Alice Spadaro , Riccardo Buscicchio , David Izquierdo-Villalba , Davide Gerosa , Antoine Klein , Geraint Pratten

We study the evolution and gravitational wave emission of white dwarf -- black hole accreting binaries with a semi-analytical model. These systems will evolve across the mHz gravitational wave frequency band and potentially be detected by…

Solar and Stellar Astrophysics · Physics 2021-03-15 Laura Sberna , Alexandre Toubiana , M. Coleman Miller

By being the first observatory to survey the source rich low frequency region of the gravitational wave spectrum, the Laser Interferometer Space Antenna (LISA) will revolutionize our understanding of the Cosmos. For the first time we will…

Astrophysics · Physics 2008-11-26 Louis J. Rubbo

We report a factor of $\sim$3 improvement in Keck Laser Guide Star Adaptive Optics (LGSAO) astrometric measurements of stars near the Galaxy's supermassive black hole (SMBH). By carrying out a systematic study of M92, we have produced a…

Astrophysics of Galaxies · Physics 2010-02-10 Sylvana Yelda , Andrea M. Ghez , Jessica R. Lu , Tuan Do , Will Clarkson , Keith Matthews

Massive black hole binary (MBHB) mergers will be detectable in large numbers by the Lisa Interferometer Space Antenna (LISA), which will thus provide new insights on how they form via repeated dark matter (DM) halo and galaxy mergers. Here…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-28 Vivienne Langen , Nicola Tamanini , Sylvain Marsat , Elisa Bortolas

Recent improved determinations of the mass density rho_BH of supermassive black holes (SMBHs) in the local universe have allowed accurate comparisons of rho_BH with the amount of light received from past quasar activity. These comparisons…

Astrophysics · Physics 2009-11-10 Kristen Menou , Zoltan Haiman

The progenitors of the high-mass black-hole mergers observed by LIGO and Virgo are potential LISA sources and promising candidates for multiband GW observations. In this letter, we consider the minimum signal-to-noise ratio these sources…

High Energy Astrophysical Phenomena · Physics 2026-01-05 Christopher J. Moore , Davide Gerosa , Antoine Klein

LISA might detect gravitational waves from mergers of massive black hole binaries strongly lensed by intervening galaxies (Sereno et al. 2010). The detection of multiple gravitational lensing events would provide a new tool for cosmography.…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 M. Sereno , Ph. Jetzer , A. Sesana , M. Volonteri

Many recent works have shown that the angular resolution of ground-based detectors is too poor to characterize the anisotropies of the stochastic gravitational-wave background (SGWB). For this reason, we asked ourselves if a constellation…

General Relativity and Quantum Cosmology · Physics 2023-01-31 Giulia Capurri , Andrea Lapi , Lumen Boco , Carlo Baccigalupi

The detection of three black hole binary coalescence events by Advanced LIGO allows the science benefits of future detectors to be evaluated. In this paper we report the science benefits of one or two 8km arm length detectors based on the…

High Energy Astrophysical Phenomena · Physics 2017-12-27 E. J. Howell , M. L. Chan , Q. Chu , D. H. Jones , I. S. Heng , H. -M. Lee , D. Blair , J. Degallaix , T. Regimbau , H. Miao , C. Zhao M. Hendry , D. Coward , C. Messenger , L. Ju , Z. -H. Zhu

The early inspiral of massive stellar-mass black-hole binaries merging in LIGO's sensitivity band will be detectable at low frequencies by the upcoming space mission LISA. LISA will predict, with years of forewarning, the time and frequency…

General Relativity and Quantum Cosmology · Physics 2019-07-03 Rhondale Tso , Davide Gerosa , Yanbei Chen

We present a semi analytic forecast for the detection of intermediate mass black hole (IMBH) binaries with the space based detectors LISA (millihertz band) and AMIGO (deci hertz band). A redshift dependent population model is built from…

General Relativity and Quantum Cosmology · Physics 2025-07-10 Marcelo M. Lapola , Oswaldo D. Miranda

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

Within its observational band the Laser Interferometer Space Antenna, LISA, will simultaneously observe orbital modulated waveforms from Galactic white dwarf binaries, a binary black hole produced gravitational-wave background, and…

General Relativity and Quantum Cosmology · Physics 2021-10-08 Guillaume Boileau , Astrid Lamberts , Nelson Christensen , Neil J. Cornish , Renate Meyer

Space-based gravitational wave (GW) detectors, such as LISA, are expected to detect thousands of Galactic close white dwarf binaries emitting nearly monochromatic GWs. In this study, we demonstrate that LISA is reasonably likely to detect…

High Energy Astrophysical Phenomena · Physics 2025-08-13 Naoki Seto

Gravitational waves emitted by merging black holes between $\sim 10^4-10^7~M_\odot$ will be detectable by the Laser Interferometer Space Antenna (LISA) with signal-to-noise ratios of several hundred out to redshift 20. Supermassive black…

Astrophysics of Galaxies · Physics 2021-10-04 Fazeel Mahmood Khan , Kelly Holley-Bockelmann