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Technical and environmental noise in ground-based laser interferometers designed for gravitational-wave observations like Advanced LIGO, Advanced Virgo and KAGRA, can manifest as narrow (<1Hz) or broadband ($10'$s or even $100'$s of Hz)…

General Relativity and Quantum Cosmology · Physics 2025-09-17 Christina Reissel , Siddharth Soni , Muhammed Saleem , Michael Coughlin , Philip Harris , Erik Katsavounidis

The observation of gravitational waves from the Laser Interferometer Gravitational-Wave Observatory (LIGO) event GW150914 may be used to constrain the possibility of Lorentz violation in graviton propagation, and the observation by the…

General Relativity and Quantum Cosmology · Physics 2016-08-03 John Ellis , Nick E. Mavromatos , Dimitri V. Nanopoulos

We propose a space-based gravitational wave detector consisting of two spatially separated, drag-free satellites sharing ultra-stable optical laser light over a single baseline. Each satellite contains an optical lattice atomic clock, which…

The detection of the first electromagnetic counterpart to a gravitational-wave signal in August 2017 marked the start of a new era of multi-messenger astrophysics. An unprecedented number of telescopes around the world were involved in…

Instrumentation and Methods for Astrophysics · Physics 2020-03-16 Martin J Dyer

The Gravitational-wave Optical Transient Observer (GOTO) is a wide-field telescope project focused on detecting optical counterparts to gravitational-wave sources. The GOTO Telescope Control System (G-TeCS) is a custom robotic control…

Instrumentation and Methods for Astrophysics · Physics 2020-12-15 Martin J. Dyer , Vik S. Dhillon , Stuart Littlefair , Danny Steeghs , Krzysztof Ulaczyk , Paul Chote , Joseph Lyman , Duncan K. Galloway , Kendall Ackley , Yik Lun Mong

Extending the sensitivity of terrestrial gravitational-wave detectors below 20 Hz is a long-standing challenge, limited by ground motion and inertial sensing noise. In this letter, we demonstrate ultra-high-vacuum compatible inertial…

The recent discovery of gravitational waves by the LIGO-Virgo collaboration created renewed interest in the investigation of alternative gravitational detector designs, such as small scale resonant detectors. In this article, it is shown…

General Relativity and Quantum Cosmology · Physics 2018-05-02 Dennis Rätzel , Ivette Fuentes

In this paper, a new semi-supervised deep multiple-input multiple-output (MIMO) detection approach using a cycle-consistent generative adversarial network (CycleGAN) is proposed for communication systems without any prior knowledge of…

Signal Processing · Electrical Eng. & Systems 2023-04-24 Hongzhi Zhu , Yongliang Guo , Wei Xu , Xiaohu You

Detection and classification of transients in data from gravitational wave detectors are crucial for efficient searches for true astrophysical events and identification of noise sources. We present a hybrid method for classification of…

Instrumentation and Methods for Astrophysics · Physics 2017-06-07 Nikhil Mukund , Sheelu Abraham , Shivaraj Kandhasamy , Sanjit Mitra , Ninan Sajeeth Philip

Ground-based gravitational wave laser interferometers (LIGO, GEO-600, Virgo and Tama-300) have now reached high sensitivity and duty cycle. We present a Bayesian evidence-based approach to the search for gravitational waves, in particular…

General Relativity and Quantum Cosmology · Physics 2008-11-26 John Veitch , Alberto Vecchio

The direct detection of gravitational waves with the next generation detectors, like Advanced LIGO, provides the opportunity to measure deviations from the predictions of General Relativity. One such departure would be the existence of…

General Relativity and Quantum Cosmology · Physics 2015-04-24 Maximiliano Isi , Alan J. Weinstein , Carver Mead , Matthew Pitkin

Interferometric gravitational wave detectors operate by sensing the differential light travel time between free test masses. Correspondingly, they are sensitive to anything that changes the physical distance between the test masses,…

General Relativity and Quantum Cosmology · Physics 2014-11-17 Lee Samuel Finn , Soma Mukherjee

With the advent of gravitational-wave astronomy and the discovery of more compact binary coalescences, data quality improvement techniques are desired to handle the complex and overwhelming noise in gravitational wave (GW) observational…

General Relativity and Quantum Cosmology · Physics 2024-02-21 He Wang , Yue Zhou , Zhoujian Cao , Zong-Kuan Guo , Zhixiang Ren

An important goal for LIGO (the Laser Interferometer Gravitational-Wave Observatory) and Virgo is to find periodic sources of gravitational waves. The LIGO and Virgo detectors are sensitive to a variety of noise of non-astrophysical origin,…

General Relativity and Quantum Cosmology · Physics 2012-08-27 LIGO Scientific Collaboration , Virgo Collaboration , Michael W. Coughlin

The Omicron software is a tool developed to perform a multi-resolution time-frequency analysis of data from gravitational-wave detectors: the LIGO, Virgo, and KAGRA detectors. Omicron generates spectrograms from whitened data streams,…

Instrumentation and Methods for Astrophysics · Physics 2021-10-08 Florent Robinet , Nicolas Arnaud , Nicolas Leroy , Andrew Lundgren , Duncan Macleod , Jessica McIver

Coincident observations with gravitational wave (GW) detectors and other astronomical instruments are in the focus of the experiments with the network of LIGO, Virgo and GEO detectors. They will become a necessary part of the future GW…

Instrumentation and Methods for Astrophysics · Physics 2011-05-25 S. Klimenko , G. Vedovato , M. Drago , G. Mazzolo , G. Mitselmakher , C. Pankow , G. Prodi , V. Re , F. Salemi , I. Yakushin

The observation of gravitational waves with a global network of interferometric detectors such as advanced LIGO, advanced Virgo, and KAGRA will make it possible to probe into the nature of space-time structure. Besides Einstein's general…

General Relativity and Quantum Cosmology · Physics 2015-03-20 Kazuhiro Hayama , Atsushi Nishizawa

Gravitational waves (GWs) can be distorted by intervening mass distributions while propagating, leading to frequency-dependent modulations that imprint a distinct signature on the observed waveforms. Bayesian inference for GW lensing with…

General Relativity and Quantum Cosmology · Physics 2026-01-15 Juno C. L. Chan , Lorena Magaña Zertuche , Jose María Ezquiaga , Rico K. L. Lo , Luka Vujeva , Joey Bowman

The most promising concept for low frequency gravitational wave observatories are laser interferometric detectors in space. It is usually assumed that the noise floor for such a detector is dominated by optical shot noise in the signal…

Instrumentation and Detectors · Physics 2015-06-23 Simon Barke , Yan Wang , Juan Jose Esteban Delgado , Michael Tröbs , Gerhard Heinzel , Karsten Danzmann

Ground-based interferometers are not perfectly all-sky instruments, and it is important to account for their behavior when considering the distribution of detected events. In particular, the LIGO detectors are most sensitive to sources…

High Energy Astrophysical Phenomena · Physics 2017-01-25 Hsin-Yu Chen , Reed Essick , Salvatore Vitale , Daniel E. Holz , Erik Katsavounidis
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