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Gravitational waves from coalescence of a Binary Neutron Star (BNS) and its accompagning short Gamma-Ray Burst GW/GRB~170817A confirmed the presumed origin of these puzzeling transients and opened up the way for relating properties of short…

High Energy Astrophysical Phenomena · Physics 2019-07-23 Houri Ziaeepour

The successful joint observation of the gravitational wave event GW170817 and its multi-wavelength electromagnetic counterparts first enables human to witness a definite merger event of two neutron stars (NSs). This historical event…

High Energy Astrophysical Phenomena · Physics 2018-07-25 Yun-Wei Yu , Liang-Duan Liu , Zi-Gao Dai

There is a high level of interest in black hole-neutron star binaries, not only because their mergers may be detected by gravitational wave observatories in the coming years, but also because of the possibility that they could explain a…

High Energy Astrophysical Phenomena · Physics 2012-06-06 William E. East , Frans Pretorius , Branson C. Stephens

On 2017 August 17, the gravitational-wave event GW170817 was observed by the Advanced LIGO and Virgo detectors, and the gamma-ray burst (GRB) GRB 170817A was observed independently by the Fermi Gamma-ray Burst Monitor, and the…

High Energy Astrophysical Phenomena · Physics 2017-11-03 LIGO Scientific Collaboration , Virgo Collaboration , Fermi Gamma-Ray Burst Monitor , INTEGRAL

Following the historical observation of GW170817 and its electromagnetic follow-up, new neutron star merger afterglows are expected to be observed as counterparts to gravitational wave signals during the next science runs of the…

High Energy Astrophysical Phenomena · Physics 2020-03-25 Raphaël Duque , Robert Mochkovitch , Frédéric Daigne

The historical detection of gravitational waves from the binary neutron star merger GW170817 is providing fundamental new insights into the astrophysical site for the creation of the heaviest elements in the cosmos and on the equation of…

Nuclear Theory · Physics 2024-03-26 J. Piekarewicz

Aims. The mass discrepancy between the observed population of double neutron star binaries by radio pulsar observations and gravitational-wave observation requires an explanation. Methods. Binary population synthesis calculations are…

Solar and Stellar Astrophysics · Physics 2020-07-22 Matthias U. Kruckow

The merger of close binary systems containing two neutron stars should produce a burst of gravitational waves, as predicted by the theory of general relativity. A reliable estimate of the double-neutron-star merger rate in the Galaxy is…

We consider the observational implications of the binary neutron star (BNS) merger GW170817 leaving behind a rapidly rotating massive neutron star that launches a relativistic, equatorial outflow as well as a jet. We show that if the…

High Energy Astrophysical Phenomena · Physics 2024-05-31 Marcus DuPont , Andrew MacFadyen

Knowing the kind of remnant produced after the merger of a binary neutron star system, e.g., if a black hole forms or not, would not only shed light on the equation of state describing the extremely dense matter inside neutron stars, but…

High Energy Astrophysical Phenomena · Physics 2025-01-08 Anna Puecher , Tim Dietrich

Measuring the collapse time of a binary neutron star merger remnant can inform the physics of extreme matter and improve modelling of short gamma-ray bursts and associated kilonova. The lifetime of the post-merger remnant directly impacts…

High Energy Astrophysical Phenomena · Physics 2021-06-09 Paul J. Easter , Paul D. Lasky , Andrew R. Casey

The lifetime of the remnant produced by the merger of two neutron stars can provide a wealth of information on the equation of state of nuclear matter and on the processes leading to the electromagnetic counterpart. Hence, it is essential…

General Relativity and Quantum Cosmology · Physics 2021-12-01 Samuel D. Tootle , L. Jens Papenfort , Elias R. Most , Luciano Rezzolla

As technology has improved, binary neutron star systems have been observed more frequently, in fact, the first gravitational wave to have an electromagnetic counterpart originated from the merger of two neutron stars (GW170817). Detecting…

Instrumentation and Methods for Astrophysics · Physics 2022-11-18 Jeshwanth Mohan

Context. The coincident detection of GW170817 and GRB170817A marked a milestone for the connection between binary neutron star (BNS) mergers and short gamma-ray bursts (sGRBs). These mergers can lead to the formation of a black hole…

High Energy Astrophysical Phenomena · Physics 2024-08-29 V. Mpisketzis , A. Nathanail

Binary neutron star mergers observations are a unique way to constrain fundamental physics and astrophysics at the extreme. The interpretation of gravitational-wave events and their electromagnetic counterparts crucially relies on…

High Energy Astrophysical Phenomena · Physics 2020-11-18 Sebastiano Bernuzzi

On 17 August 2017, a gravitational wave event (GW170817) and an associated short gamma-ray burst (GRB 170817A) from a binary neutron star merger had been detected. The followup optical/infrared observations also identified the…

We present the first direct comparison of numerical simulations of neutron star-black hole and black hole-black hole mergers in full general relativity. We focus on a configuration with non spinning objects and within the most likely range…

We investigate the long-term evolution and observability of remnants originating from the merger of compact binary systems and discuss the differences to supernova remnants. Compact binary mergers expel much smaller amounts of mass at much…

Astrophysics · Physics 2008-11-26 W. Domainko , M. Ruffert

Binary neutron stars (NSNS) are expected to be among the leading sources of gravitational waves observable by ground-based laser interferometers and may be the progenitors of short-hard gamma ray bursts. We present a series of general…

Astrophysics · Physics 2008-11-26 Yuk Tung Liu , Stuart L. Shapiro , Zachariah B. Etienne , Keisuke Taniguchi

We present a study aimed at quantifying the detectability of radio counterparts of binary neutron star (BNS) mergers with total masses $\lesssim 3$\,M$_{\odot}$, which may form neutron star (NS) remnants. We focus on mergers localized by…

High Energy Astrophysical Phenomena · Physics 2025-07-01 Kara Merfeld , Alessandra Corsi
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