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The multi-messenger detection of GW170817 showed that binary neutron star (BNS) mergers are progenitors of (at least some) short gamma-ray bursts (GRBs), and that short GRB jets (and their afterglows) can have structures (and observational…

High Energy Astrophysical Phenomena · Physics 2023-07-04 Avery Eddins , Kyung-hwan Lee , Alessandra Corsi , Imre Bartos , Zsuzsanna Marka , Szabolcs Marka

Rapid localization of gravitational-wave events is important for the success of the multi-messenger observations. The forthcoming improvements and constructions of gravitational-wave detectors will enable detecting and localizing…

General Relativity and Quantum Cosmology · Physics 2021-09-15 Takuya Tsutsui , Atsushi Nishizawa , Soichiro Morisaki

Gravitational waves (GWs) from binary neutron stars (BNSs) offer valuable understanding of the nature of compact objects and hadronic matter, and the science potential will be greatly enhanced by the third-generation (3G) GW detectors,…

General Relativity and Quantum Cosmology · Physics 2025-07-02 Qian Hu , Jessica Irwin , Qi Sun , Christopher Messenger , Lami Suleiman , Ik Siong Heng , John Veitch

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

Gravitational waves have been detected from the inspiral of a binary neutron-star, GW170817, which allowed constraints to be placed on the neutron star equation of state. The equation of state can be further constrained if gravitational…

General Relativity and Quantum Cosmology · Physics 2019-08-14 Paul J. Easter , Paul D. Lasky , Andrew R. Casey , Luciano Rezzolla , Kentaro Takami

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

Inspiraling and merging binary neutron stars are not only important source of gravitational waves, but also promising candidates for coincident electromagnetic counterparts. These systems are thought to be progenitors of short gamma-ray…

High Energy Astrophysical Phenomena · Physics 2017-11-03 Milton Ruiz , Stuart L. Shapiro

Gravitational waves produced from the merger of binary neutron stars (BNSs) are accompanied by electromagnetic counterparts, making it possible to identify the associated host galaxy. We explore how properties of the host galaxies relate to…

Astrophysics of Galaxies · Physics 2020-12-16 Susmita Adhikari , Maya Fishbach , Daniel E. Holz , Risa H. Wechsler , Zhanpei Fang

We investigate emission signatures of binary compact star gravitational wave sources consisting of strongly magnetized neutron stars (NSs) and/or white dwarfs (WDs) in their late-time inspiral phase. Because of electromagnetic interactions…

High Energy Astrophysical Phenomena · Physics 2018-11-21 Jie-Shuang Wang , Fang-Kun Peng , Kinwah Wu , Zi-Gao Dai

Gravitational wave detection has opened up new avenues for exploring and understanding some of the fundamental principles of the universe. The optimal method for detecting modelled gravitational-wave events involves template-based matched…

General Relativity and Quantum Cosmology · Physics 2025-01-15 Damon Beveridge , Alistair McLeod , Linqing Wen , Andreas Wicenec

Gravitational wave (GW) observations of binary neutron star (BNS) mergers can be used to measure luminosity distances and hence, when coupled with estimates for the mergers' host redshifts, infer the Hubble constant, $H_0$. These…

Cosmology and Nongalactic Astrophysics · Physics 2019-11-27 Daniel J. Mortlock , Stephen M. Feeney , Hiranya V. Peiris , Andrew R. Williamson , Samaya M. Nissanke

We discuss two approaches to searches for gravitational-wave (GW) and electromagnetic (EM) counterparts of binary neutron star mergers. The first approach relies on triggering archival searches of GW detector data based on detections of EM…

High Energy Astrophysical Phenomena · Physics 2015-06-03 Ilya Mandel , Luke Z. Kelley , Enrico Ramirez-Ruiz

Rapid detection and follow-up of electromagnetic (EM) counterparts to gravitational wave (GW) signals from binary neutron star (BNS) mergers are essential for constraining source properties and probing the physics of relativistic…

High Energy Astrophysical Phenomena · Physics 2025-12-08 Daniel Skorohod , Ofek Birnholtz

We present a semi-analytic model for predicting kilonova light curves from the mergers of neutron stars with black holes (NSBH). The model is integrated into the MOSFiT platform, and can generate light curves from input binary properties…

High Energy Astrophysical Phenomena · Physics 2023-10-02 B. P. Gompertz , M. Nicholl , J. C. Smith , S. Harisankar , G. Pratten , P. Schmidt , G. P. Smith

Fast material ejected dynamically over $<10$ ms during the merger of a binary neutron-star (BNS) system can give rise to distinctive electromagnetic counterparts to the system's gravitational-wave emission that can serve as a "smoking gun"…

High Energy Astrophysical Phenomena · Physics 2023-03-23 Luciano Combi , Daniel M. Siegel

Explaining gravitational-wave (GW) observations of binary neutron star (BNS) mergers requires an understanding of matter beyond nuclear saturation density. Our current knowledge of the properties of high-density matter relies on…

High Energy Astrophysical Phenomena · Physics 2024-03-15 Giuseppe Rivieccio , Davide Guerra , Milton Ruiz , José A. Font

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…

Binary neutron star (BNS) mergers are the leading model to explain the phenomenology of short gamma-ray bursts (SGRBs), which are among the most luminous explosions in the universe. Recent observations of long-lasting X-ray afterglows of…

High Energy Astrophysical Phenomena · Physics 2016-03-16 Daniel M. Siegel , Riccardo Ciolfi

A significant fraction of binary neutron star mergers occur in star-forming galaxies where the UV-optical and soft X-ray afterglow emission from the relativistic jet may be absorbed by dust and re-emitted at longer wavelengths. We show…

High Energy Astrophysical Phenomena · Physics 2021-08-25 Wenbin Lu , Christopher F. McKee , Kunal P. Mooley

Since the first detection of gravitational waves in 2015 by LIGO from the binary black hole merger GW150914, gravitational-wave astronomy has developed significantly, with over 200 compact binary merger events cataloged. The use of neural…

General Relativity and Quantum Cosmology · Physics 2026-01-28 Ethan Silver , Plamen Krastev , Edo Berger