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The direct detection of gravitational waves will provide valuable astrophysical information about many celestial objects. Also, it will be an important test to general relativity and other theories of gravitation. The gravitational wave…

Gravitational wave is a propagation of space-time distortion, which is predicted by Einstein in general relativity. Strong gravitational waves will come from some drastic astronomical objects, e.g. coalescence of neutron star binaries,…

Instrumentation and Methods for Astrophysics · Physics 2011-12-15 Nobuyuki Kanda , the LCGT collaboration

Third generation ground-based gravitational wave (GW) detectors, such as Einstein Telescope and Cosmic Explorer, will operate in the $(\text{few}-10^4)$ Hz frequency band, with a boost in sensitivity providing an unprecedented reach into…

Cosmology and Nongalactic Astrophysics · Physics 2024-11-21 Chiara Caprini , Oriol Pujolàs , Hippolyte Quelquejay-Leclere , Fabrizio Rompineve , Danièle A. Steer

Space-based gravitational wave detection is based on the astrodynamical equations derived from gravitational theory to detect changes in distance between spacecraft/celestial bodies and/or their state changes caused by gravitational waves.…

General Relativity and Quantum Cosmology · Physics 2024-09-04 Wei-Tou Ni

Strong gravitational lensing is a gravitational wave (GW) propagation effect that influences the inferred GW source parameters and the cosmological environment. Identifying strongly-lensed GW images is challenging as waveform amplitude…

General Relativity and Quantum Cosmology · Physics 2021-06-02 Yijun Wang , Rico K. L. Lo , Alvin K. Y. Li , Yanbei Chen

Recently, detailed studies have been made to compare the performance of the European next generation GW observatory Einstein Telescope (ET) in a single-site triangular configuration with the performance of a configuration featuring two…

General Relativity and Quantum Cosmology · Physics 2024-08-28 Francesco Iacovelli , Enis Belgacem , Michele Maggiore , Michele Mancarella , Niccolò Muttoni

X-ray observations of some short gamma-ray bursts indicate that a long-lived neutron star can form as a remnant of a binary neutron star merger. We develop a gravitational-wave detection pipeline for a long-lived binary neutron star merger…

High Energy Astrophysical Phenomena · Physics 2018-08-21 Nikhil Sarin , Paul D. Lasky , Letizia Sammut , Greg Ashton

In this paper we provide a short overview of the scope and strong future potential of a multi-messenger approach to gravitational-wave astronomy, that seeks to optimally combine gravtitational wave and electromagnetic observations. We…

High Energy Astrophysical Phenomena · Physics 2015-09-22 XiLong Fan , Martin Hendry

Low-frequency gravitational-wave astronomy can perform precision tests of general relativity and probe fundamental physics in a regime previously inaccessible. A space-based detector will be a formidable tool to explore gravity's role in…

Various models for electromagnetic emissions correlated with the gravitational wave signals expected to be detectable by the current and planned gravitational wave detectors are studied. The position error on the location of a gravitational…

Astrophysics · Physics 2009-11-07 Julien Sylvestre

[Abridged] This study presents the first Bayesian investigation of the accuracy with which the cosmological parameters can be measured using information coming \emph{only} from the gravitational wave observations of binary neutron star…

General Relativity and Quantum Cosmology · Physics 2017-02-08 Walter Del Pozzo , Tjonnie G. F. Li , Chris Messenger

We discuss the astrophysical science case for a decihertz gravitational-wave mission. We focus on unique opportunities for scientific discovery in this frequency range, including probes of type IA supernova progenitors, mergers in the…

High Energy Astrophysical Phenomena · Physics 2018-03-14 Ilya Mandel , Alberto Sesana , Alberto Vecchio

As the ground-based gravitational-wave telescopes LIGO, Virgo, and GEO 600 approach the era of first detections, we review the current knowledge of the coalescence rates and the mass and spin distributions of merging neutron-star and…

High Energy Astrophysical Phenomena · Physics 2015-03-13 Ilya Mandel , Richard O'Shaughnessy

We aim to find the optimal site locations for a hypothetical network of 1-3 triangular gravitational-wave telescopes. We define the following N-telescope figures of merit (FoMs) and construct three corresponding metrics: (a) capability of…

Instrumentation and Methods for Astrophysics · Physics 2013-06-27 Péter Raffai , László Gondán , Ik Siong Heng , Nándor Kelecsényi , Josh Logue , Zsuzsa Márka , Szabolcs Márka

We introduce $\texttt{GWFAST}$, a novel Fisher-matrix code for gravitational-wave studies, tuned toward third-generation gravitational-wave detectors such as Einstein Telescope (ET) and Cosmic Explorer (CE). We use it to perform a…

General Relativity and Quantum Cosmology · Physics 2023-01-02 Francesco Iacovelli , Michele Mancarella , Stefano Foffa , Michele Maggiore

The upcoming European design study `Einstein gravitational-wave Telescope' represents the first step towards a substantial, international effort for the design of a third-generation interferometric gravitational wave detector. It is…

General Relativity and Quantum Cosmology · Physics 2009-11-13 A. Freise , S. Chelkowski , S. Hild , W. Del Pozzo , A. Perreca , A. Vecchio

Modified gravitational wave propagation is a smoking gun of modifications of gravity at cosmological scales, and can be the most promising observable for testing such theories. The observation of gravitational waves (GW) in recent years has…

General Relativity and Quantum Cosmology · Physics 2022-03-18 Francesco Iacovelli , Andreas Finke , Stefano Foffa , Michele Maggiore , Michele Mancarella

The simultaneous detection of electromagnetic and gravitational waves from the coalescence of two neutron stars (GW170817 and GRB170817A) has ushered in a new era of "multi-messenger" astronomy, with electromagnetic detections spanning from…

High Energy Astrophysical Phenomena · Physics 2020-06-10 Mouza Almualla , Michael W. Coughlin , Shreya Anand , Khalid Alqassimi , Nidhal Guessoum , Leo P. Singer

We present the expected performance regarding fast sky localization of coalescing binaries with a network of three gravitational wave detectors having heterogeneous sensitivities, such as the LIGO-Virgo network. A hierarchical approach can…

High Energy Astrophysical Phenomena · Physics 2019-05-08 Y. Fujii , T. Adams , F. Marion , R. Flaminio

We consider stellar-origin black hole binaries, which are among the main astrophysical sources for next generation gravitational wave (GW) detectors such as the Einstein Telescope (ET) and Cosmic Explorer (CE). Using population models…

Cosmology and Nongalactic Astrophysics · Physics 2022-11-23 Mauro Pieroni , Angelo Ricciardone , Enrico Barausse