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Related papers: Intracluster Short Gamma-Ray Bursts by Compact Bin…

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The recent localization of some short-hard gamma ray bursts (GRBs) in galaxies with low star formation rates has lent support to the suggestion that these events result from compact object binary mergers. We discuss how new simulations in…

Astrophysics · Physics 2009-11-11 Joshua A. Faber , Thomas W. Baumgarte , Stuart L. Shapiro , Keisuke Taniguchi

The central engine of short gamma-ray bursts (sGRBs) is hidden from direct view, operating at a scale much smaller than that probed by the emitted radiation. Thus we must infer its origin not only with respect to the formation of the {\it…

High Energy Astrophysical Phenomena · Physics 2015-06-19 Ariadna Murguia-Berthier , Gabriela Montes , Enrico Ramirez-Ruiz , Fabio De Colle , William H. Lee

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

Short duration gamma-ray bursts (SGRBs) are thought to be related to the violent merger of compact objects, such as neutron stars or black holes, which makes them promising sources of gravitational waves. The detection of a 'kilonova'-like…

Performing N-body simulations, we examine the dynamics of BH-BH (10 Msun each) and NS-NS (1.4 Msun each) binaries formed in a cluster and its implications for gravitational wave detection. A significant fraction of compact binaries are…

High Energy Astrophysical Phenomena · Physics 2015-06-16 Yeong-Bok Bae , Chunglee Kim , Hyung Mok Lee

Gamma-ray bursts (GRBs) display a bimodal duration distribution, with a separation between the short- and long-duration bursts at about 2 sec. The progenitors of long GRBs have been identified as massive stars based on their association…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Edo Berger

The mergers of binary neutron stars (BNSs) and neutron star-black holes (NSBHs) binaries have long been linked to short-duration gamma-ray bursts (SGRBs). However, despite their stellar progenitors, SGRBs are often found outside the stellar…

High Energy Astrophysical Phenomena · Physics 2025-07-02 N. Gaspari , A. J. Levan , A. A. Chrimes , A. E. Nugent

The merger of compact binary stars produces short gamma-ray bursts (sGRBs), involving channels such as neutron star - neutron star (BNS) and neutron star - black hole (NS-BH). The association between sGRB 170817A and gravitational wave GW…

High Energy Astrophysical Phenomena · Physics 2025-01-14 Qin-Mei Li , Qi-Bin Sun

Long duration gamma ray bursts (GRBs) and X-ray flashes (XRFs) are produced by highly- relativistic jets ejected in core-collapse supernova explosions. The origin of short hard gamma-ray bursts (SHBs) has not been established. They may be…

Astrophysics · Physics 2011-02-11 Shlomo Dado , Arnon Dar

Short gamma-ray bursts (SGRBs) are now known to be the product of the merger of two compact objects. However, two possible formation channels exist: neutron star -- neutron star (NS -- NS) or NS -- black hole (BH). The landmark SGRB 170817A…

High Energy Astrophysical Phenomena · Physics 2020-06-03 B. P. Gompertz , A. J. Levan , N. R. Tanvir

Gamma-Ray Bursts (GRBs) fall into two classes: short-hard and long-soft bursts. The latter are now known to have X-ray and optical afterglows, to occur at cosmological distances in star-forming galaxies, and to be associated with the…

The accretion of ~ 0.1 -- 1 M_o of material by a neutron star through Roche lobe overflow of its companion or through white-dwarf/neutron-star coalescence in a low mass binary system could be enough to exceed the critical mass of a neutron…

Astrophysics · Physics 2009-11-11 Charles D. Dermer , Armen Atoyan

The luminosities of short gamma ray burst host galaxies are anticorrelated with both the isotropic equivalent gamma ray energy and the gamma ray luminosity of the explosions. Observational selection effects only strengthen the significance…

Astrophysics · Physics 2010-01-15 James E. Rhoads

The merger of a binary of neutron stars provides natural explanations for many of the features of short gamma-ray bursts (SGRBs), such as the generation of a hot torus orbiting a rapidly rotating black hole, which can then build a magnetic…

High Energy Astrophysical Phenomena · Physics 2015-04-06 Luciano Rezzolla , Pawan Kumar

The first locations of short gamma-ray bursts (GRBs) in elliptical galaxies suggest they are produced by the mergers of double neutron star (DNS) binaries in old stellar populations. Globular clusters, where the extreme densities of very…

Astrophysics · Physics 2015-06-24 Jonathan Grindlay , Simon Portegies Zwart , Stephen McMillan

Gamma-ray bursts (GRBs) are violent stellar explosions that are traditionally divided into two groups: short bursts (SGRBs) with an observed duration T90 < 2 s, and long bursts (LGRBs) with an observed duration T90 > 2 s, where T90 refers…

High Energy Astrophysical Phenomena · Physics 2025-02-21 Ali M. Hasan , Walid J. Azzam

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

In recent years, detailed observations and accurate numerical simulations have provided support to the idea that mergers of compact binaries containing either two neutron stars (NSs) or an NS and a black hole (BH) may constitute the central…

High Energy Astrophysical Phenomena · Physics 2012-12-18 Bruno Giacomazzo , Rosalba Perna , Luciano Rezzolla , Eleonora Troja , Davide Lazzati

We study the properties of short gamma-ray bursts (GRBs), based on the assumption that they are all connected to the binary neutron star mergers, whose formation mechanism contains a large amount of uncertainty. In particular, the merger…

Astrophysics · Physics 2010-11-15 Shin'ichiro Ando