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Ten binary black-hole mergers have already been detected during the first two observing runs of advanced LIGO and Virgo, and many more are expected to be observed in the near future. This opens the possibility for gravitational-wave…

High Energy Astrophysical Phenomena · Physics 2020-05-15 Yann Bouffanais , Michela Mapelli , Davide Gerosa , Ugo N. Di Carlo , Nicola Giacobbo , Emanuele Berti , Vishal Baibhav

We discuss the possibility that galactic gravitational wave sources might give burst signals at a rate of several events per year, detectable by state-of-the-art detectors. We are stimulated by the results of the data collected by the…

General Relativity and Quantum Cosmology · Physics 2011-08-17 Eugenio Coccia , Florian Dubath , Michele Maggiore

We propose a qualitative scenario to interpret the argued association between the direct measurement of the gravitational wave event GW150914 by Laser Interferometer Gravitational Wave Observatory (LIGO)-Virgo collaborations and the hard…

High Energy Astrophysical Phenomena · Physics 2018-05-02 F. Fraschetti

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

The joint detection of gravitational waves (GWs) and $\gamma$-rays from a binary neutron-star (NS) merger provided a unique view of off-axis GRBs and an independent measurement of the NS merger rate. Comparing the observations of GRB170817…

High Energy Astrophysical Phenomena · Physics 2018-12-12 Paz Beniamini , Maria Petropoulou , Rodolfo Barniol Duran , Dimitrios Giannios

Neutron star binaries, such as the one observed in the famous binary pulsar PSR 1916+13, end their life in a catastrophic merge event (denoted here NS$^2$M). The merger releases $\approx 5 \cdot 10^{53}$ergs, mostly as neutrinos and…

Astrophysics · Physics 2009-09-25 Tsvi Piran

The unrivalled, extreme luminosities of gamma-ray bursts (GRBs) make them the favored beacons for sampling the high redshift Universe. To employ GRBs to study the cosmic terrain -- e.g., star and galaxy formation history -- GRB luminosities…

Astrophysics · Physics 2007-05-23 J. P. Norris

We compare the observed spatial offsets of short gamma-ray bursts from their host galaxies with their predicted distributions, assuming that they originate in double neutron star binaries that form from field stars. We find that, for the…

High Energy Astrophysical Phenomena · Physics 2011-10-20 Ross P. Church , Andrew J. Levan , Melvyn B. Davies , Nial Tanvir

Gamma-ray bursts (GRBs) have been phenomenologically classified into long and short populations based on the observed bimodal distribution of duration. Multi-wavelength and multi-messenger observations in recent years have revealed that in…

We have searched for gravitational waves from coalescing low mass compact binary systems with a total mass between 2 and 35 Msun and a minimum component mass of 1 Msun using data from the first year of the fifth science run (S5) of the…

General Relativity and Quantum Cosmology · Physics 2009-06-30 LIGO Scientific Collaboration , B. Abbott

We discuss possible radio bursts which can be generated during binary neutron stars mergers associated with short gamma-ray bursts. Low-frequency radio band appear to be advantageous due to the time delay of a radio signal propagating in…

High Energy Astrophysical Phenomena · Physics 2010-04-30 K. A. Postnov , M. S. Pshirkov

Gamma-ray bursts (GRBs) can be probes of the early universe, but currently, only 26% of GRBs observed by the Neil Gehrels Swift Observatory GRBs have known redshifts ($z$) due to observational limitations. To address this, we estimated the…

The most popular progenitor model for short duration Gamma-Ray bursts (sGRBs) is the merger of two compact objects. However, the short GRB population exhibit a certain diversity: some bursts display an extended emission (EE), continuing in…

High Energy Astrophysical Phenomena · Physics 2018-09-26 Nikhil Anand , Mustafa Shahid , Lekshmi Resmi

After decades of observations the physical mechanisms that generate short gamma-ray bursts (SGRBs) still remain unclear. Observational evidence provides support to the idea that SGRBs originate from the merger of compact binaries,…

High Energy Astrophysical Phenomena · Physics 2015-05-07 Riccardo Ciolfi , Daniel M. Siegel

The presence and detectability of coherent radio emission from compact binary mergers (containing at least one neutron star) remains poorly constrained due to large uncertainties in the models. These compact binary mergers may initially be…

High Energy Astrophysical Phenomena · Physics 2019-09-04 A. Rowlinson , G. E. Anderson

We predict the redshift distribution of Gamma-Ray Bursts (GRBs) assuming that they trace the cosmic star formation history. We find that a fraction >~50% of all GRBs on the sky originate at a redshift z >~5, even though the fraction of the…

Astrophysics · Physics 2011-07-19 Volker Bromm , Abraham Loeb

Recently, both theoretical arguments and observational evidence suggested that a small fraction of fast radio bursts (FRBs) could be associated with gamma-ray bursts (GRBs). If such FRB/GRB association systems are commonly detected in the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 He Gao , Zhuo Li , Bing Zhang

Some, if not all, binary neutron star (BNS) coalescences, and a fraction of neutron - star black hole (NSBH) mergers, are thought to produce sufficient mass-ejection to power Gamma-Ray Bursts (GRBs). However, this fraction, as well as the…

High Energy Astrophysical Phenomena · Physics 2024-11-18 Shasvath J. Kapadia , Dimple , Dhruv Jain , Kuntal Misra , K. G. Arun , L. Resmi

The contemporaneous detection of gravitational waves and gamma rays from the GW170817/GRB 170817A, followed by kilonova emission a day after, confirmed compact binary neutron-star mergers as progenitors of short-duration gamma-ray bursts…