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In a General Relativistic framework, Gravitational Waves (GW) and Electromagnetic (EM) waves are expected to respond in the same way to the effects of matter perturbations between the emitter and the observer. A different behaviour might be…

Cosmology and Nongalactic Astrophysics · Physics 2023-02-14 Giulio Scelfo , Maria Berti , Alessandra Silvestri , Matteo Viel

With the epochal first detection of gravitational waves from a binary neutron star (NS) merger with the GW170817 event, and its direct confirmation that NS-NS mergers are significant sources of the of the r-process nucleosynthesis of heavy…

The detection of an electromagnetic counterpart (GRB 170817A) to the gravitational wave signal (GW170817) from the merger of two neutron stars opens a completely new arena for testing theories of gravity. We show that this measurement…

Cosmology and Nongalactic Astrophysics · Physics 2017-12-27 Tessa Baker , Emilio Bellini , Pedro G. Ferreira , Macarena Lagos , Johannes Noller , Ignacy Sawicki

To date GW170817, produced by a binary neutron star (BNS) merger, is the only gravitational wave event with an electromagnetic (EM) counterpart. It was associated with a prompt short gamma-ray burst (GRB), an optical kilonova, and the…

With GW170817 being the only multimessenger gravitational wave (GW) event with an associated kilonova detected so far, there exists a pressing need for realistic estimation of the GW localization uncertainties and rates, as well as…

Mergers of binary neutron stars (BNSs) emit signals in both the gravitational-wave (GW) and electromagnetic (EM) spectra. Famously, the 2017 multi-messenger observation of GW170817 led to scientific discoveries across cosmology, nuclear…

In August 2017, the first detection of a binary neutron star merger, GW170817, made it possible to study neutron stars in compact binary systems using gravitational waves. Despite being the loudest gravitational wave event detected to date…

General Relativity and Quantum Cosmology · Physics 2023-01-24 Stephanie M. Brown , Collin D. Capano , Badri Krishnan

Multi-messenger astronomy was galvanized by the detection of gravitational waves (GWs) from the binary neutron star (BNS) merger GW170817 and electromagnetic (EM) emission from the subsequent kilonova and short gamma ray burst. Maximizing…

High Energy Astrophysical Phenomena · Physics 2025-12-02 Nathan Steinle , Samar Safi-Harb , Matt Nicholl , Isabelle Worssam , Benjamin P. Gompertz

In addition to the emission of gravitational waves (GWs) the coalescence and merger of two neutron stars will produce a variety of electromagnetic (EM) signals. In this work we combine a large set of numerical relativity simulations…

General Relativity and Quantum Cosmology · Physics 2017-05-03 Tim Dietrich , Maximiliano Ujevic

Multi-messenger astronomy combining Gravitational Wave (GW) and Electromagnetic Wave (EM) observation brings huge impact on physics, astrophysics and cosmology. However, the majority of sources to be detected with currently running…

High Energy Astrophysical Phenomena · Physics 2019-10-16 Shu-Xu Yi , K. S. Cheng

Future ground-based gravitational wave (GW) detectors, i.e., Einstein telescope (ET) and Cosmic Explorer (CE), are expected to detect a significant number of lensed binary neutron star (BNS) mergers, which may provide a unique tool to probe…

High Energy Astrophysical Phenomena · Physics 2023-07-07 Hao Ma , Youjun Lu , Xiao Guo , Siqi Zhang , Qingbo Chu

The historical detection of gravitational waves emitted from the binary neutron star merger GW170817 has opened the new era of multi-messenger astronomy. Since then, many other significant discoveries -- both on heaven and earth -- are…

Nuclear Theory · Physics 2022-10-19 J. Piekarewicz

The next generation gravitational wave (GW) detectors -- Einstein Telescope (ET) and Cosmic Explorer (CE) will have distance horizons up to $\mathcal{O}(10)$ Gpc for detecting binary neutron star (BNS) mergers. This will make them ideal for…

High Energy Astrophysical Phenomena · Physics 2025-06-27 Mainak Mukhopadhyay , Shigeo S. Kimura , Kohta Murase

Two neutron stars merge somewhere in the Universe approximately every 10 seconds, creating violent explosions observable in gravitational waves and across the electromagnetic spectrum. The transformative coincident gravitational-wave and…

High Energy Astrophysical Phenomena · Physics 2022-02-21 Nikhil Sarin , Paul D. Lasky

The Gravitational Wave (GW) events GW150914, GW151226, GW170104 detected by LIGO were a record of Black Hole binary merging system (BH-BH) very probably in nearly empty or a vacuum space; such a kind of events will be mostly with no baryon…

High Energy Astrophysical Phenomena · Physics 2018-04-16 Daniele Fargion , Pier Giorgio De Sanctis Lucentini , Pietro Oliva , Maxim Yu. Khlopov

The discovery of the compact binary coalescence in both gravitational waves and electromagnetic radiation marks a breakthrough in the field of multi-messenger astronomy and has improved our knowledge in a number of research areas. However,…

High Energy Astrophysical Phenomena · Physics 2019-11-15 Michael W. Coughlin , Tim Dietrich

We discuss the different signals, in gravitational and electromagnetic waves, emitted during the merger of two compact stars. We will focus in particular on the possible contraints that those signals can provide on the equation of state of…

High Energy Astrophysical Phenomena · Physics 2018-02-08 Alessandro Drago , Giuseppe Pagliara , Sergei B. Popov , Silvia Traversi , Grzegorz Wiktorowicz

As several large scale interferometers are beginning to take data at sensitivities where astrophysical sources are predicted, the direct detection of gravitational waves may well be imminent. This would open the gravitational-wave window to…

Astrophysics · Physics 2015-05-13 Kostas D. Kokkotas

GHz radio astronomy has played a fundamental role in the recent dazzling discovery of GW170817, a neutron star (NS)-NS merger observed in both gravitational waves (GWs) and light at all wavelengths. Here we show how the expected progress in…