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Pulsar timing arrays recently found evidence for a gravitational wave background (GWB), likely the stochastic overlap of GWs from many supermassive black hole binaries. Anticipating a continuous gravitational wave (CW) detection from a…

Cosmology and Nongalactic Astrophysics · Physics 2025-08-08 Emiko C. Gardiner , Bence Bécsy , Luke Zoltan Kelley , Neil J. Cornish

In this paper, we study the strong gravitational lensing of gravitational waves (GWs) from a statistical perspective, with particular focus on the high frequency GWs from stellar binary black hole coalescences. These are most promising…

Cosmology and Nongalactic Astrophysics · Physics 2018-03-21 Shun-Sheng Li , Shude Mao , Yuetong Zhao , Youjun Lu

In the next decade, the Laser Interferometer Space Antenna (LISA) will detect the coalescence of massive black hole binaries (MBHBs) in the range $[10^4, 10^8] \, \rm M_{\odot}$, up to $z\sim10$. Their gravitational wave (GW) signal is…

High Energy Astrophysical Phenomena · Physics 2022-11-23 A. Mangiagli , C. Caprini , M. Volonteri , S. Marsat , S. Vergani , N. Tamanini , H. Inchauspé

We present a forecast for the upcoming Einstein Telescope (ET) interferometer with two new methods to infer cosmological parameters. We consider the emission of Gravitational Waves (GWs) from compact binary coalescences, whose…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-15 Giovanni Antinozzi , Matteo Martinelli , Roberto Maoli

Understanding and dealing with inference biases in gravitational-wave (GW) parameter estimation when a plethora of signals are present in the data is one of the key challenges for the analysis of data from future GW detectors. Working…

General Relativity and Quantum Cosmology · Physics 2021-08-25 Andrea Antonelli , Ollie Burke , Jonathan R. Gair

Recent astrophysical models predict that stellar-mass binary black holes (BBHs) could form and coalesce within a few gravitational radii of a supermassive black hole (SMBH). Detecting the gravitational waves (GWs) from such systems requires…

High Energy Astrophysical Phenomena · Physics 2024-02-06 Zhongfu Zhang , Xian Chen

The first discovery of the gravitational wave (GW) event, GW150914, suggests a higher merger rate of black-hole (BH) binaries. If this is true, a number of BH binaries will be observed via the second-generation GW detectors, and the…

Cosmology and Nongalactic Astrophysics · Physics 2016-07-13 Toshiya Namikawa , Atsushi Nishizawa , Atsushi Taruya

To fully unlock the scientific potential of upcoming gravitational wave (GW) interferometers, numerical relativity (NR) simulation accuracy will need to be greatly enhanced. We present three infrastructure-agnostic improvements to the…

General Relativity and Quantum Cosmology · Physics 2024-09-19 Zachariah B. Etienne

The upcoming Laser Interferometer Space Antenna (LISA), set for launch in the mid-2030s, will enhance our capability to probe the universe through gravitational waves (GWs) emitted from binary black holes (BBHs) across a broad range of…

Cosmology and Nongalactic Astrophysics · Physics 2024-10-08 Samsuzzaman Afroz , Suvodip Mukherjee

This paper is to introduce a new software called CBwaves which provides a fast and accurate computational tool to determine the gravitational waveforms yielded by generic spinning binaries of neutron stars and/or black holes on eccentric…

General Relativity and Quantum Cosmology · Physics 2013-02-13 Péter Csizmadia , Gergely Debreczeni , István Rácz , Mátyás Vasúth

Coalescing neutron-star-black-hole (NS-BH) binaries are a promising source of gravitational-wave (GW) signals detectable with large-scale laser interferometers such as Advanced LIGO and Virgo. They are also one of the main short gamma-ray…

General Relativity and Quantum Cosmology · Physics 2014-07-25 Francesco Pannarale , Frank Ohme

Accurate modeling of gravitational-wave signals is essential for reliable inference of compact-binary source parameters, particularly for future space-based detectors operating in the milli- and deci-Hertz bands. In this work, we…

General Relativity and Quantum Cosmology · Physics 2026-01-13 Jin-Zhao Yang , Jia-Hao Zhong , Tao Yang

We investigate how multi-band gravitational wave (GW) observations can constrain the uncertainties in the Hubble parameter ($H_0$) using primordial black holes (PBHs) as possible sources. Our framework combines scalar-induced and…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-27 Setabuddin , Md Riajul Haque , Ratna Koley , Supratik Pal

We investigate the merging rates of compact binaries in galaxies, and the related detection rate of gravitational wave (GW) events with AdvLIGO/Virgo and with the Einstein Telescope. To this purpose, we rely on three basic ingredients: (i)…

Astrophysics of Galaxies · Physics 2019-09-04 L. Boco , A. Lapi , S. Goswami , F. Perrotta , C. Baccigalupi , L. Danese

In recent years, there have been significant advances in multi-messenger astronomy due to the discovery of the first, and so far only confirmed, gravitational wave event with a simultaneous electromagnetic (EM) counterpart, as well as…

We investigate the detectability of single-event coalescing black hole binaries with total mass of $100-600 M_{\odot}$ at cosmological distances ($5 \lesssim z \lesssim 20$) with the next generation of terrestrial gravitational wave…

High Energy Astrophysical Phenomena · Physics 2023-10-30 Stephen Fairhurst , Cameron Mills , Monica Colpi , Raffaella Schneider , Alberto Sesana , Alessandro Trinca , Rosa Valiante

Massive black hole binaries are the primary source of gravitational waves (GW) for the future eLISA observatory. The detection and parameter estimation of these sources to high redshift would provide invaluable information on the formation…

General Relativity and Quantum Cosmology · Physics 2015-05-27 Edward K. Porter , Neil J. Cornish

The discovery of gravitational-wave (GW) signals, produced by the coalescence of stellar-mass binary black holes (SBBHs), opens a new window to study the astrophysical origins and dynamical evolutions of compact binaries. In addition, these…

Cosmology and Nongalactic Astrophysics · Physics 2020-10-07 Jiming Yu , Yu Wang , Wen Zhao , Youjun Lu

The Einstein Telescope (ET) is the future third generation gravitational wave detector consisting of three independent interferometers arranged in a triangular configuration, with the sensitivity large enough to be able to detect stellar…

High Energy Astrophysical Phenomena · Physics 2021-08-25 Neha Singh , Tomasz Bulik

Detection of gravitational waves from the inspiral phase of binary neutron star coalescence will allow us to measure the effects of the tidal coupling in such systems. These effects will be measurable using 3rd generation gravitational wave…

General Relativity and Quantum Cosmology · Physics 2015-05-28 Chris Messenger , Jocelyn Read