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Related papers: Short Gamma-Ray Bursts and Gravitational-Wave Obse…

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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

Binary black hole (BBH) mergers are the primary sources of gravitational wave (GW) events detected by LIGO/Virgo. Binary black holes embedded in the accretion discs of active galactic nuclei (AGN) are possible candidates for such GW events.…

Astrophysics of Galaxies · Physics 2020-07-22 W. Ishibashi , M. Gröbner

The astrophysical origin of gravitational wave (GW) transients is a timely open question in the wake of discoveries by LIGO/Virgo. In active galactic nuclei (AGNs), binaries form and evolve efficiently by interaction with a dense population…

High Energy Astrophysical Phenomena · Physics 2021-01-27 Hiromichi Tagawa , Bence Kocsis , Zoltan Haiman , Imre Bartos , Kazuyuki Omukai , Johan Samsing

Supermassive black hole (SMBH) binaries represent the main target for missions such as the Laser Interferometer Space Antenna and Pulsar Timing Arrays. The understanding of their dynamical evolution prior to coalescence is therefore crucial…

Astrophysics of Galaxies · Physics 2021-02-17 Imran Nasim , Cristobal Petrovich , Adam Nasim , Fani Dosopoulou , Fabio Antonini

A significant fraction of compact-object mergers in galactic nuclei are expected to be eccentric in the Laser Interferometer Space Antenna (LISA) frequency sensitivity range, $10^{-4} - 10^{-1}\ \rm Hz$. Several compact binaries detected by…

High Energy Astrophysical Phenomena · Physics 2026-02-04 Evgeni Grishin , Isobel M. Romero-Shaw , Alessandro A. Trani

The gravitational-wave (GW) inspirals of stellar-mass compact objects onto a supermassive black hole (MBH), are some of the most promising GW sources detectable by next-generation space-born GW-detectors. The rates and characteristics of…

Astrophysics of Galaxies · Physics 2021-01-05 Yael Raveh , Hagai B. Perets

Short gamma-ray bursts (sGRBs) are widely believed to result from the mergers of compact binaries. This model predicts an afterglow that bears the characteristic signatures of a constant, low density medium, including a smooth…

High Energy Astrophysical Phenomena · Physics 2015-06-19 Cole Holcomb , Enrico Ramirez-Ruiz , Fabio De Colle , Gabriela Montes

In order to investigate the formation rate of binary black holes (BBHs) in stellar clusters with a mass comparable to open clusters, we performed a series of direct $N$-body simulations of open clusters with a mass of $2.5\times10^3$ (Model…

High Energy Astrophysical Phenomena · Physics 2019-04-24 Jun Kumamoto , Michiko S. Fujii , Ataru Tanikawa

We present a detailed assessment of the dynamical pathways leading to the coalescence of compact objects in Globular Clusters (GCs) and Short Gamma-Ray Burst (SGRB) production. We consider primordial binaries, dynamically formed binaries…

High Energy Astrophysical Phenomena · Physics 2014-11-20 William H. Lee , Enrico Ramirez-Ruiz , Glenn van de Ven

The successive discoveries of binary merger events by Advanced LIGO-Virgo have been revealing the statistical properties of binary black hole (BBH) populations. A stochastic gravitational wave background (GWB) is a useful tool to probe the…

Cosmology and Nongalactic Astrophysics · Physics 2021-09-29 Kohei Inayoshi , Kazumi Kashiyama , Eli Visbal , Zoltan Haiman

Dynamical capture in dense stellar environments is a promising channel for producing eccentric compact binary mergers. Although there have been no confident detections of eccentric mergers to date, a few candidates show indications of…

High Energy Astrophysical Phenomena · Physics 2026-05-13 A. Vincent Paul , Parthapratim Mahapatra , Marc Favata , K. G. Arun

Neutron star mergers can form a hypermassive neutron star (HMNS) remnant, which may be the engine of a short gamma ray burst (SGRB) before it collapses to a black hole, possibly several hundred milliseconds after the merger. During the…

High Energy Astrophysical Phenomena · Physics 2019-10-16 Cecilia Chirenti , M. Coleman Miller , Tod Strohmayer , Jordan Camp

With about a hundred binary black hole (BBH) mergers detected by LIGO-Virgo-KAGRA, and with several hundreds expected in the current O4 run, GWs are revolutionizing our understanding of the universe. Some BBH sources are too faint to be…

General Relativity and Quantum Cosmology · Physics 2024-01-10 Xiao-Xiao Kou , Giacomo Fragione , Vuk Mandic

The gravitational wave (GW) signal from binary black hole (BBH) mergers is a promising probe of Population III (Pop III) stars. To fully unleash the power of the GW probe, one important step is to understand the relative importance and…

Binary neutron star (BNS) mergers are one of the proposed origins for both repeating and non-repeating fast radio bursts (FRBs), which associates FRBs with gravitational waves and short gamma-ray bursts (GRBs). In this work, we explore…

High Energy Astrophysical Phenomena · Physics 2020-08-18 Haoxiang Lin , Tomonori Totani

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

LIGO's third observing run (O3) has reported several neutron star-black hole (NSBH) merger candidates. From a theoretical point of view, NSBH mergers have received less attention in the community than either binary black holes (BBHs), or…

High Energy Astrophysical Phenomena · Physics 2020-11-04 Bao-Minh Hoang , Smadar Naoz , Kyle Kremer

The recent coincident detection of gravitational waves (GW) from a binary neutron star merger with aLIGO/Virgo and short-lived gamma-ray emission with Fermi/GBM (called GW 170817) is a milestone for the establishment of multi-messenger…

High Energy Astrophysical Phenomena · Physics 2017-10-17 J. Michael Burgess , Jochen Greiner , Damien Begue , Dimitrios Giannios , Francesco Berlato , Vladimir M. Lipunov

Binary neutron-star mergers have long been associated with short-duration gamma-ray bursts (GRBs). This connection was confirmed with the first coincident detection of gravitational waves together with electromagnetic radiation from…

High Energy Astrophysical Phenomena · Physics 2019-10-11 Antonios Nathanail , Oliver Porth , Luciano Rezzolla

The initial separation of massive star binaries sets the timescale over which their compact remnants merge through the emission of gravitational waves. We show that the delay time distribution (DTD) of binary neutron stars or black holes…

High Energy Astrophysical Phenomena · Physics 2020-10-07 Mohammadtaher Safarzadeh , Sylvia Biscoveanu , Abraham Loeb