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We investigate the possible bounds which could be placed on alternative theories of gravity using gravitational wave detection from inspiralling compact binaries with the proposed LISA space interferometer. Specifically, we estimate lower…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Clifford M Will , Nicolas Yunes

Stochastic gravitational wave backgrounds, predicted in many models of the early universe and also generated by various astrophysical processes, are a powerful probe of the Universe. The spectral shape is key information to distinguish the…

Cosmology and Nongalactic Astrophysics · Physics 2018-11-27 Sachiko Kuroyanagi , Takeshi Chiba , Tomo Takahashi

To evaluate the probability of a gravitational-wave candidate originating from noise, GstLAL collects noise statistics from the data it analyzes. Gravitational-wave signals of astrophysical origin get added to the noise statistics, harming…

General Relativity and Quantum Cosmology · Physics 2023-05-30 Prathamesh Joshi , Leo Tsukada , Chad Hanna

The data from ground based gravitational-wave detectors such as Advanced LIGO and Virgo must be calibrated to convert the digital output of photodetectors into a relative displacement of the test masses in the detectors, producing the…

General Relativity and Quantum Cosmology · Physics 2021-03-24 Salvatore Vitale , Carl-Johan Haster , Ling Sun , Ben Farr , Evan Goetz , Jeff Kissel , Craig Cahillane

We use gravitational waves (GWs) from binary black holes (BBHs) and neutron stars inspiraling into intermediate-mass black holes to evaluate how accurately the future space-based GW detectors such as LISA, Taiji and TianQin and their…

General Relativity and Quantum Cosmology · Physics 2023-07-19 Qing Gao , Yujie You , Yungui Gong , Chao Zhang , Chunyu Zhang

The dynamical formation channels of gravitational wave (GW) sources typically involve a stage when the compact object binary source interacts with the environment, which may excite its eccentricity, yielding efficient GW emission. For the…

High Energy Astrophysical Phenomena · Physics 2026-05-28 Zeyuan Xuan , Smadar Naoz , Bence Kocsis , Erez Michaely

Key targets for gravitational wave (GW) observatories, such as LIGO and the next generation interferometric detector, Advanced LIGO, include core-collapse of massive stars and the final stage of coalescence of compact stellar remnants. The…

Astrophysics · Physics 2009-11-11 David Coward , Tania Regimbau

The stochastic gravitational wave background (SGWB) offers a new opportunity to observe signals of primordial features from inflationary models. We study their detectability with future space-based gravitational waves experiments, focusing…

Cosmology and Nongalactic Astrophysics · Physics 2021-03-17 Matteo Braglia , Xingang Chen , Dhiraj Kumar Hazra

We present a Fisher-matrix forecast for the detectability of a stochastic gravitational wave background generated by a first-order phase transition in the early universe. We use the DECIGO and LISA missions as reference cases. The source…

General Relativity and Quantum Cosmology · Physics 2026-05-07 Diego Rios , William H. Kinney

Since the first direct detection of gravitational waves by the LIGO--Virgo collaboration in 2015, the size of the gravitational-wave transient catalog has grown to nearly 100 events, with more than as many observed during the ongoing fourth…

Instrumentation and Methods for Astrophysics · Physics 2024-09-24 Colm Talbot , Amanda Farah , Shanika Galaudage , Jacob Golomb , Hui Tong

In this article we give a brief review of the fundamental physics that can be done with the future space-based gravitational wave detector LISA. This includes detection of gravitational wave bursts coming from cosmic strings, measuring a…

General Relativity and Quantum Cosmology · Physics 2011-05-25 Stanislav Babak , Jonathan R. Gair , Antoine Petiteau , Alberto Sesana

We describe a case study of translational research, applying interpretability techniques developed for computer vision to machine learning models used to search for and find gravitational waves. The models we study are trained to detect…

General Relativity and Quantum Cosmology · Physics 2022-02-16 Mohammadtaher Safarzadeh , Asad Khan , E. A. Huerta , Martin Wattenberg

This review article is based on a seminar presented at the Higgs pairs workshop 2025. Stochastic gravitational wave backgrounds can serve as probe of the diverse phenomenology encountered in beyond-Standard-Model scenarios featuring phase…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-04 Chiara Caprini

We present the astrophysical science case for a space-based, decihertz gravitational-wave (GW) detector. We particularly highlight an ability to infer a source's sky location, both when combined with a network of ground-based detectors to…

General Relativity and Quantum Cosmology · Physics 2020-08-12 Kevin A. Kuns , Hang Yu , Yanbei Chen , Rana X Adhikari

Detection and study of gravitational waves from astrophysical sources is a major goal of current astrophysics. Ground-based laser-interferometer systems such as LIGO and VIRGO are sensitive to gravitational waves with frequencies of order…

Astrophysics · Physics 2008-11-26 R. N. Manchester

We review cosmological backgrounds of gravitational waves with a particular attention to the scientific potential of the eLISA/NGO mission. After an overview of cosmological backgrounds and detectors, we consider different cosmological…

Cosmology and Nongalactic Astrophysics · Physics 2012-09-19 Jean-Francois Dufaux

Globular clusters house a population of compact binaries that will be interesting gravitational wave sources for LISA. We provide estimates for the numbers of sources of several categories and discuss the sensitivity of LISA to detecting…

General Relativity and Quantum Cosmology · Physics 2009-10-31 M J Benacquista , S Portegies Zwart , F A Rasio

We are witnessing the dawn of gravitational wave (GW) astronomy. With currently available detectors, observations are restricted to GW frequencies in the range between ${\sim} 10\,\mathrm{Hz}$ and $10\,\mathrm{kHz}$, which covers the…

The future space-based gravitational-wave detector LISA will deliver rich and information-dense data by listening to the milliHertz Universe. The measured time series will contain the imprint of tens of thousands of detectable Galactic…

General Relativity and Quantum Cosmology · Physics 2022-04-27 Quentin Baghi

The range to which the Laser Interferometer Gravitational-Wave Observatory (LIGO) can observe astrophysical systems varies over time, limited by noise in the instruments and their environments. Identifying and removing the sources of noise…

Instrumentation and Methods for Astrophysics · Physics 2018-10-25 Marissa Walker , Alfonso F. Agnew , Jeffrey Bidler , Andrew Lundgren , Alexandra Macedo , Duncan Macleod , T. J. Massinger , Oliver Patane , Joshua R. Smith