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The expected volume of data from the third-generation gravitational waves (GWs) Einstein Telescope (ET) detector would make traditional GWs search methods such as match filtering impractical. This is due to the large template bank required…

Instrumentation and Methods for Astrophysics · Physics 2023-01-04 Wathela Alhassan , Tomasz Bulik , Mariusz Suchenek

The Einstein Telescope (ET), a proposed next-generation gravitational wave (GW) observatory, will expand the reach of GW astronomy of stellar-mass compact object binaries to unprecedented distances, enhancing opportunities for…

Next-generation detectors are expected to be sensitive to postmerger signals from binary neutron star coalescences and thus to directly probe the remnant dynamics. We investigate the scientific potential of postmerger detections with the…

General Relativity and Quantum Cosmology · Physics 2022-05-23 Matteo Breschi , Rossella Gamba , Ssohrab Borhanian , Gregorio Carullo , Sebastiano Bernuzzi

The Einstein Telescope (ET) is a proposed third-generation, wide-band gravitational wave (GW) detector which will have an improved detection sensitivity in low frequencies, leading to a longer observation time in the detection band and…

High Energy Astrophysical Phenomena · Physics 2025-05-27 Neha Singh , Tomasz Bulik , Aleksandra Olejak

Black hole-neutron star mergers, together with binary neutron star mergers, are key laboratories for neutron star physics. They enable us to probe merger dynamics imprinted in gravitational waves and potential electromagnetic counterparts.…

High Energy Astrophysical Phenomena · Physics 2026-03-10 Rahime Matur , Beyhan Karakaş , Roland Haas , Ian Hawke , Nils Andersson , Steven R. Brandt

Third-generation (3G) gravitational-wave detectors such as the Einstein Telescope (ET) will observe binary black hole (BBH) mergers at redshifts up to $z\sim 100$. However, an unequivocal determination of the origin of high-redshift sources…

The recent discovery of the binary black hole (BBH) merger event GW190521, between two black holes (BHs) of $\approx100M_\odot$, and as well as other massive BBH merger events involving BHs within the pair-instability supernova (PSN) mass…

High Energy Astrophysical Phenomena · Physics 2022-09-07 Sambaran Banerjee

We discuss the capability of a third-generation ground-based detector such as the Einstein Telescope (ET) to enhance our astrophysical knowledge through detections of gravitational waves emitted by binaries including intermediate-mass and…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-13 Jonathan R. Gair , Ilya Mandel , M. Coleman Miller , Marta Volonteri

We use the open source, community-driven, numerical relativity software, the Einstein Toolkit to study the physics of eccentric, spinning, nonprecessing binary black hole mergers with mass-ratios $q=\{2, 4, 6\}$, individual dimensionless…

General Relativity and Quantum Cosmology · Physics 2023-03-22 Abhishek V. Joshi , Shawn G. Rosofsky , Roland Haas , E. A. Huerta

Primordial black holes (PBHs) are compact objects proposed to have formed in the early Universe from the collapse of small-scale over-densities. Their existence may be detected from the observation of gravitational waves (GWs) emitted by…

Cosmology and Nongalactic Astrophysics · Physics 2022-09-01 Matteo Martinelli , Francesca Scarcella , Natalie B. Hogg , Bradley J. Kavanagh , Daniele Gaggero , Pierre Fleury

The first direct observation of a binary neutron star (BNS) merger was a watershed moment in multi-messenger astronomy. However, gravitational waves from GW170817 have only been observed prior to the BNS merger, but electromagnetic…

General Relativity and Quantum Cosmology · Physics 2020-01-07 Jahed Abedi , Niayesh Afshordi

We study the phenomenology of non-spinning eccentric binary black hole (BBH) mergers using numerical relativity (NR) waveforms and \texttt{EccentricIMR} waveform model, as presented in Ref. \cite{Hinder:2017sxy} (Hinder, Kidder, and…

General Relativity and Quantum Cosmology · Physics 2024-03-07 Tousif Islam

The Laser Interferometer Gravitational-Wave Observatory (LIGO) and Virgo Interferometer Collaborations have now detected all three classes of compact binary mergers: binary black hole (BBH), binary neutron star (BNS), and neutron star-black…

Instrumentation and Methods for Astrophysics · Physics 2023-03-20 Richard Qiu , Plamen Krastev , Kiranjyot Gill , Edo Berger

Next-generation gravitational wave (GW) observatories, such as the Einstein Telescope (ET) and Cosmic Explorer, will observe binary neutron star (BNS) mergers across cosmic history, providing precise parameter estimates for the closest…

Gravitational wave (GW) detection has enabled us to test General Relativity in an entirely new regime. A prominent role in tests of General Relativity takes the detection of the Quasi-normal modes (QNMs) that arise as the highly distorted…

General Relativity and Quantum Cosmology · Physics 2024-05-29 Alejandro Torres-Orjuela

Primordial Black Holes (PBHs) have recently attracted much attention as they may explain some of the LIGO/Virgo/KAGRA observations and significantly contribute to the dark matter in our universe. The next generation of Gravitational Wave…

General Relativity and Quantum Cosmology · Physics 2023-08-16 G. Franciolini , F. Iacovelli , M. Mancarella , M. Maggiore , P. Pani , A. Riotto

The Einstein Telescope (ET) is going to bring a revolution for the future of multi-messenger astrophysics. In order to detect the counterparts of binary neutron star (BNS) mergers at high redshift, the high-energy observations will play a…

We present a novel Machine Learning (ML) based strategy to search for binary black hole (BBH) mergers in data from ground-based gravitational wave (GW) observatories. This is the first ML-based search that not only recovers all the compact…

General Relativity and Quantum Cosmology · Physics 2021-09-29 Shreejit Jadhav , Nikhil Mukund , Bhooshan Gadre , Sanjit Mitra , Sheelu Abraham

The Einstein Telescope (ET), a future third-generation gravitational wave detector will have detection sensitivity for gravitational wave signals down to 1 Hz. This improved low-frequency sensitivity of the ET will allow the observation of…

High Energy Astrophysical Phenomena · Physics 2022-12-19 Neha Singh , Tomasz Bulik

The next generation of ground-based gravitational-wave detectors, Einstein Telescope (ET) and Cosmic Explorer (CE), present a unique opportunity to put constraints on dense matter, among many other groundbreaking scientific goals. In a…

General Relativity and Quantum Cosmology · Physics 2023-12-18 Francesco Iacovelli , Michele Mancarella , Chiranjib Mondal , Anna Puecher , Tim Dietrich , Francesca Gulminelli , Michele Maggiore , Micaela Oertel
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