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The primordial stochastic gravitational wave background (SGWB) carries first-hand messages of early-universe physics, possibly including effects from inflation, preheating, cosmic strings, electroweak symmetry breaking, and etc. However,…

Cosmology and Nongalactic Astrophysics · Physics 2020-10-16 Zhen Pan , Huan Yang

The Laser Interferometer Space Antenna (LISA) is expected to provide the largest observational sample of binary systems of faint sub-solar mass compact objects, in particular white-dwarfs, whose radiation is monochromatic over most of the…

General Relativity and Quantum Cosmology · Physics 2009-11-10 A. Vecchio , E. D. L. Wickham

We estimate the signal-to-noise ratio for two gravitational detectors interacting with a stochastic background of massive scalar waves. We find that the present experimental level of sensitivity could be already enough to detect a signal…

General Relativity and Quantum Cosmology · Physics 2009-10-31 M. Gasperini

A space-based gravitational-wave detector, LISA, consists of a triangle of three spacecrafts with a separation distance of 2.5 million kilometers in a heliocentric orbit behind the Earth. Like LISA, Taiji is compose of a triangle of three…

General Relativity and Quantum Cosmology · Physics 2021-01-12 Wen-Hong Ruan , Chang Liu , Zong-Kuan Guo , Yue-Liang Wu , Rong-Gen Cai

The future space mission LISA will observe a wealth of gravitational-wave sources at millihertz frequencies. Of these, the extreme-mass-ratio inspirals of compact objects into massive black holes are the only sources that combine the…

General Relativity and Quantum Cosmology · Physics 2021-02-08 Alvin J. K. Chua , Michael L. Katz , Niels Warburton , Scott A. Hughes

The Laser Interferometer Space Antenna (LISA) is a gravitational wave detector in space. It relies on a post-processing technique named time-delay interferometry (TDI) to suppress the overwhelming laser frequency noise by several orders of…

With one exception, previous analyses of the measurement accuracy of gravitational wave experiments for comparable-mass binary systems have neglected either spin-precession effects or subdominant harmonics and amplitude modulations. Here we…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-06 Antoine Klein , Philippe Jetzer , Mauro Sereno

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

Supermassive black hole binaries (SMBHBs) are expected to be detected by the future space-based gravitational-wave detector LISA with a large signal-to-noise ratio (SNR). This prospect enhances the possibility of differentiating higher…

General Relativity and Quantum Cosmology · Physics 2024-10-01 Chantal Pitte , Quentin Baghi , Sylvain Marsat , Marc Besançon , Antoine Petiteau

In this article, which will appear as a chapter in the Handbook of Gravitational Wave Astronomy, we will describe the detection of gravitational waves with space-based interferometric gravitational wave observatories. We will provide an…

General Relativity and Quantum Cosmology · Physics 2022-01-27 Jonathan R Gair , Martin Hewitson , Antoine Petiteau , Guido Mueller

Massive black hole binary systems, with masses in the range ~10^4-10^10 \msun, are among the primary sources of gravitational waves in the frequency window ~10^-9 Hz - 0.1 Hz. Pulsar Timing Arrays (PTAs) and the Laser Interferometer Space…

Astrophysics · Physics 2009-11-13 Alberto Sesana , Alberto Vecchio , Carlo Nicola Colacino

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

We present a study of spectrum estimation of relic gravitational waves (RGWs) as a Gaussian stochastic background from output signals of future space-borne interferometers, like LISA and ASTROD. As the target of detection, the analytical…

General Relativity and Quantum Cosmology · Physics 2019-03-05 Bo Wang , Yang Zhang

The Laser Interferometer Space Antenna (LISA) is being designed to detect and study in detail gravitational waves from sources throughout the Universe such as massive black hole binaries. The conceptual formulation of the LISA space-borne…

General Relativity and Quantum Cosmology · Physics 2014-11-17 Scott E Pollack , Robin Tuck Stebbins

Separating a stochastic gravitational wave background (SGWB) from noise is a challenging statistical task. One approach to establishing a detection criterion for the SGWB is using Bayesian evidence. If the evidence ratio (Bayes factor)…

Instrumentation and Methods for Astrophysics · Physics 2025-09-17 Federico Pozzoli , Jonathan Gair , Riccardo Buscicchio , Lorenzo Speri

The novel data analysis challenges posed by the Laser Interferometer Space Antenna (LISA) arise from the overwhelmingly large number of astrophysical sources in the measurement band and the density with which they are found in the data.…

General Relativity and Quantum Cosmology · Physics 2023-03-29 Tyson B. Littenberg , Neil J. Cornish

Supposing the Laser Interferometer Space Antenna (LISA) gravitational wave (GW) detector, we exhibit the detectability of a hypothetical smooth crossover in the early universe beyond the Standard Model of particle physics through the…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-04 Albert Escrivà , Ryoto Inui , Yuichiro Tada , Chul-Moon Yoo

We assess the science reach and technical feasibility of a satellite mission based on precision atomic sensors configured to detect gravitational radiation. Conceptual advances in the past three years indicate that a two-satellite…

Instrumentation and Methods for Astrophysics · Physics 2017-11-08 Peter W. Graham , Jason M. Hogan , Mark A. Kasevich , Surjeet Rajendran , Roger W. Romani

LISA data analysis represents one of the most challenging tasks ahead for the future of gravitational-wave (GW) astronomy. Characterizing the instrument's noise properties while fitting for all the other detectable sources is a key…

General Relativity and Quantum Cosmology · Physics 2025-10-21 Alessandro Santini , Martina Muratore , Jonathan Gair , Olaf Hartwig

This article reviews the present status of the technology and instrumentation for the joint ESA/NASA gravitational wave detector LISA. It briefly describes the measurement principle and the mission architecture including the resulting…

Instrumentation and Methods for Astrophysics · Physics 2009-09-17 O. Jennrich
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