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Compact binary mergers that involve at least one neutron star, either binary neutron star or black hole--neutron star coalescences, are thought to be the potential sources of electromagnetic emission due to the material ejected during the…

High Energy Astrophysical Phenomena · Physics 2023-09-08 Yan Li , Rong-Feng Shen

The central engine that powers gamma-ray bursts (GRBs), the most powerful explosions in the universe, is still not identified. Besides hyper-accreting black holes, rapidly spinning and highly magnetized neutron stars, known as millisecond…

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

Motivated by the recent discovery of the binary neutron-star (BNS) merger GW170817, we determine the optimal observational setup for detecting and characterizing radio counterparts of nearby ($d_L\sim40$\,Mpc) BNS mergers. We simulate…

High Energy Astrophysical Phenomena · Physics 2018-11-28 Dario Carbone , Alessandra Corsi

The binary neutron star merger responsible for the gravitational wave event, GW170817, strengthened the merger association with short-duration gamma-ray bursts (SGRBs) following the detection of the SGRB counterpart, GRB 170817A. Here we…

High Energy Astrophysical Phenomena · Physics 2019-08-02 Soheb Mandhai , Nial Tanvir , Gavin Lamb , Andrew Levan , David Tsang

The rich phenomenology of binary neutron star mergers offers a unique opportunity to test general relativity, investigate matter at supranuclear densities, and learn more about the origin of heavy elements. As multi-messenger sources, they…

We investigate current and future prospects for coincident detection of high-energy neutrinos and gravitational waves (GWs). Short gamma-ray bursts (SGRBs) are believed to originate from mergers of compact star binaries involving neutron…

High Energy Astrophysical Phenomena · Physics 2017-12-18 Shigeo S. Kimura , Kohta Murase , Peter Mészáros , Kenta Kiuchi

We assess the detectability of the gravitational wave signals from highly eccentric compact binaries. We use a simple model for the inspiral, merger, and ringdown of these systems. The model is based on mapping the binary to an effective…

General Relativity and Quantum Cosmology · Physics 2013-02-14 William E. East , Sean T. McWilliams , Janna Levin , Frans Pretorius

Short gamma-ray bursts (SGRBs) observed by {\it Swift} are potentially revealing the first insight into cataclysmic compact object mergers. To ultimately acquire a fundamental understanding of these events requires pan-spectral observations…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 David Coward , Eric Howell , Tsvi Piran , Giulia Stratta , Marica Branchesi , Omer Bromberg , Bruce Gendre , Ronald Burman , Dafne Guetta

Recent observations have accumulated compelling evidence that some short gamma-ray bursts (SGRBs) are associated with the mergers of neutron star (NS) binaries. This would indicate that the SGRB event is associated with a gravitational-wave…

Cosmology and Nongalactic Astrophysics · Physics 2013-07-11 Samaya Nissanke , Daniel E. Holz , Neal Dalal , Scott A. Hughes , Jonathan L. Sievers , Christopher M. Hirata

Fast radio bursts are brief, highly dispersed bursts detected in the radio band, originating from cosmological distances. The only such event detected in the Milky Way galaxy, FRB 20200428DD, was associated with an X-ray burst emitted by a…

High Energy Astrophysical Phenomena · Physics 2024-10-04 Bing Zhang

The merger of a binary neutron star system is suggested as the central engine of short gamma-ray bursts (sGRBs). For the merger process, simulations predict that magnetic field is amplified beyond magnetar field strength by Kelvin-Helmholtz…

High Energy Astrophysical Phenomena · Physics 2017-01-06 Nissim Fraija , William H. Lee , Peter Veres , Rodolfo Barniol Duran

Gamma-ray bursts (GRBs) offer a powerful window to probe the progenitor systems responsible for the formation of heavy elements through the rapid neutron capture (r-) process, thanks to their exceptional luminosity, which allows them to be…

Binary neutron-star mergers will predominantly produce black-hole remnants of mass $\sim 3-4\,M_{\odot}$, thus populating the putative \emph{low mass gap} between neutron stars and stellar-mass black holes. If these low-mass black holes are…

General Relativity and Quantum Cosmology · Physics 2026-01-05 Anuradha Gupta , Davide Gerosa , K. G. Arun , Emanuele Berti , Will Farr , B. S. Sathyaprakash

The binary neutron star merger GW170817/GRB170817A confirmed that at least some neutron star mergers are the progenitors of short gamma-ray bursts. Many short gamma-ray bursts have long-term x-ray afterglows that have been interpreted in…

High Energy Astrophysical Phenomena · Physics 2019-09-04 Paul D. Lasky , Nikhil Sarin , Greg Ashton

Merging binary systems consisting of two collapsed objects are among the most promising sources of high frequency gravitational wave, GW, signals for ground based interferometers. Double neutron star or black hole/neutron star mergers are…

Astrophysics · Physics 2015-05-13 Dafne Guetta , Luigi Stella

We propose the model describing the observed multiple fast radio bursts due to the close encounters and collisions of neutron stars in the central clusters of the evolved galactic nuclei. The subsystem of neutron star cluster may originate…

High Energy Astrophysical Phenomena · Physics 2017-12-07 V. I. Dokuchaev , Yu. N. Eroshenko

Neutron star binary mergers are strong sources of gravitational waves (GWs). Promising electromagnetic counterparts are short gamma-ray bursts (GRBs) but the emission is highly collimated. We propose that the scattering of the long-lasting…

High Energy Astrophysical Phenomena · Physics 2015-08-19 Shota Kisaka , Kunihito Ioka , Takashi Nakamura

Using the observed rate of short-duration gamma-ray bursts (GRBs) it is possible to make predictions for the detectable rate of compact binary coalescences in gravitational-wave detectors. These estimates rely crucially on the growing…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Hsin-Yu Chen , Daniel E. Holz

The first multimessenger discovery of a binary neutron star (BNS) merger, GW170817, proved that such mergers can source short gamma-ray bursts (SGRBs) and produce \rprocess elements. The initial merger rate from this single event in the…

High Energy Astrophysical Phenomena · Physics 2026-04-08 Maya Fishbach , Alexander P. Ji , Wen-fai Fong , Tom Y. Wu , Jillian C. Rastinejad , Aditya Vijaykumar , Hsin-Yu Chen
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