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Gravitational waves (GW) from eccentric binaries have intricate signals encoding important features about the location, creation and evolution of the sources. Eccentricity shortens the merger time, making the emitted GW statistically…

General Relativity and Quantum Cosmology · Physics 2024-05-13 Dillon Buskirk , Maria C. Babiuc Hamilton

We present the implementation of an anomaly-detection algorithm based on a deep convolutional autoencoder for the search for gravitational waves (GWs) in time-frequency spectrograms. Our method targets short-duration ($\lesssim…

General Relativity and Quantum Cosmology · Physics 2026-02-23 Gianluca Inguglia , Huw Haigh , Kristyna Vitulova , Ulyana Dupletsa

Third generation gravitational wave (GW) detectors are expected to detect millions of binary black hole (BBH) mergers during their operation period. A small fraction of them ($\sim 1\%$) will be strongly lensed by intervening galaxies and…

Cosmology and Nongalactic Astrophysics · Physics 2023-08-17 Souvik Jana , Shasvath J. Kapadia , Tejaswi Venumadhav , Parameswaran Ajith

Pulsar timing arrays have found evidence for a low-frequency gravitational wave background (GWB). Assuming the GWB is produced by supermassive black hole binaries (SMBHBs), the next gravitational wave (GW) signals astronomers anticipate are…

High Energy Astrophysical Phenomena · Physics 2024-04-24 Emiko C. Gardiner , Luke Zoltan Kelley , Anna-Malin Lemke , Andrea Mitridate

We investigate the synergy of upcoming galaxy surveys and gravitational wave (GW) experiments in constraining late-time cosmology, examining the cross-correlations between the weak lensing of gravitational waves (GW-WL) and the galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2023-06-28 Anna Balaudo , Alice Garoffolo , Matteo Martinelli , Suvodip Mukherjee , Alessandra Silvestri

The strongly lensed gravitational wave (SLGW) is a promising transient phenomenon. However, the long-wave nature of gravitational waves poses a significant challenge in identification of its host galaxy. To tackle this challenge, we propose…

Instrumentation and Methods for Astrophysics · Physics 2025-05-08 Xikai Shan , Bin Hu , Xuechun Chen , Rong-Gen Cai

Trying to detect the gravitational wave (GW) signal emitted by a type II supernova is a main challenge for the GW community. Indeed, the corresponding waveform is not accurately modeled as the supernova physics is very complex; in addition,…

We present a proposal for a gravitational wave detector, based on the excitation of an electromagnetic mode in a resonance cavity. The mode is excited due to the interaction between a large amplitude electromagnetic mode and a…

Astrophysics · Physics 2017-08-23 G. Brodin , M. Marklund

Gravitational-wave (GW) detectors can contribute to the measurement of cosmological parameters and to testing the dark-energy sector of alternatives to $\Lambda$CDM, by using standard sirens. In this paper we focus on binary neutron stars…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-21 Enis Belgacem , Yves Dirian , Stefano Foffa , Eric J. Howell , Michele Maggiore , Tania Regimbau

In a recent paper we have deduced the basic equations that predict the emission of gravitational waves (GW) according to the Einstein gravitation theory. In a subsequent paper these equations have been used to calculate the luminosities and…

General Relativity and Quantum Cosmology · Physics 2010-04-15 M. Cattani

We explore the intriguing possibility of employing future ground-based gravitational-wave interferometers to detect the inspiral of binary neutron stars sufficiently early to alert electromagnetic observatories so that a gamma-ray burst…

High Energy Astrophysical Phenomena · Physics 2018-12-18 Sarp Akcay

A universal amplification scheme of ultra-small phase based on weak measurements is given and a weak measurements amplification based laser interferometer gravitational-wave observatory (WMA-LIGO) is suggested. The WMA-LIGO has potential to…

Quantum Physics · Physics 2017-11-03 Meng-Jun Hu , Yong-Sheng Zhang

The era of Gravitational-Wave (GW) astronomy will grant the detection of the astrophysical GW background from unresolved mergers of binary black holes, and the prospect of probing the presence of primordial GW backgrounds. In particular,…

Cosmology and Nongalactic Astrophysics · Physics 2023-04-26 Davide Racco , Davide Poletti

Gravitational-wave (GW) observations of compact binaries have the potential to unlock several remarkable applications in astrophysics, cosmology, and nuclear physics through accurate measurements of the source luminosity distance and…

General Relativity and Quantum Cosmology · Physics 2025-09-23 Adriano Frattale Mascioli , Francesco Crescimbeni , Costantino Pacilio , Paolo Pani , Francesco Pannarale

Gravitational waves (GW) from chirping binary black holes (BBHs) provide unique opportunities to test general relativity (GR) in the strong-field regime. However, testing GR can be challenging when incomplete physical modeling of the…

General Relativity and Quantum Cosmology · Physics 2025-07-09 Anuj Mishra , N. V. Krishnendu , Apratim Ganguly

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

Multi-wavelength and multi-messenger astrophysics have experienced rapid growth over the past decade, seeking a complete picture of different cosmic phenomena. Transient sources, in particular, benefit from the input of multi-messenger…

High Energy Astrophysical Phenomena · Physics 2025-10-06 Bernardo Cornejo , Halim Ashkar , Matteo Cerruti , Ilja Jaroschewski , Pierre Pichard , Santiago Pita , Fabian Schussler

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…

Gravitational wave (GW) astronomy has been hailed as a gateway to discovering unexpected phenomena in the universe. Over the last decade there have been close to one hundred GW observations of compact-binary mergers. While these signals are…

General Relativity and Quantum Cosmology · Physics 2025-11-10 Shrobana Ghosh , Mark Hannam