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Context. The progenitors of short gamma-ray bursts (SGRBs) have not yet been well identified. The most popular model is the merger of compact object binaries (NS-NS/NS-BH). However, other progenitor models cannot be ruled out. The…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Jing-Meng Hao , Ye-Fei Yuan

Short gamma-ray bursts (SGRBs) are among the most luminous explosions in the Universe and their origin still remains uncertain. Observational evidence favors the association with binary neutron star or neutron star-black hole (NS-BH) binary…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Riccardo Ciolfi , Daniel M. Siegel

The multi-messenger joint observations of GW170817 and GRB170817A shed new light on the study of short-duration gamma-ray bursts (SGRBs). Not only did it substantiate the assumption that SGRBs originate from binary neutron star (BNS)…

High Energy Astrophysical Phenomena · Physics 2023-11-03 Jia-wei Luo , Ye Li , Shunke Ai , He Gao , Bing Zhang

The distribution of delay times between the formation of binary black hole (BBH) progenitors and their gravitational-wave (GW) merger provides important clues about their unknown formation histories. When inferring the delay time…

High Energy Astrophysical Phenomena · Physics 2025-01-07 Tom Y. Wu , Maya Fishbach

The delay time distribution of neutron star mergers provides critical insights into binary evolution processes and the merger rate evolution of compact object binaries. However, current observational constraints on this delay time…

High Energy Astrophysical Phenomena · Physics 2022-11-28 Michael Zevin , Anya E. Nugent , Susmita Adhikari , Wen-fai Fong , Daniel E. Holz , Luke Zoltan Kelley

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

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

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

The favoured progenitor model for short $\gamma$-ray bursts (SGRBs) is the merger of two neutron stars that triggers an explosion with a burst of collimated $\gamma$-rays. Following the initial prompt emission, some SGRBs exhibit a plateau…

High Energy Astrophysical Phenomena · Physics 2014-03-05 Paul D. Lasky , Brynmor Haskell , Vikram Ravi , Eric J. Howell , David M. Coward

Recent observational and theoretical results suggest that Short-duration Gamma-Ray Bursts (SGRBs) are originated by the merger of compact binary systems of two neutron stars or a neutron star and a black hole. The observation of SGRBs with…

Cosmology and Nongalactic Astrophysics · Physics 2013-04-10 Carlo Enrico Petrillo , Alexander Dietz , Marco Cavaglià

The detection of GW170817, it's extensive multi-wavelength follow-up campaign, and the large amount of theoretical development and interpretation that followed, have resulted in a significant step forward in the understanding of the binary…

High Energy Astrophysical Phenomena · Physics 2020-11-20 Davide Lazzati

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

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

There is increasing evidence of a local population of short duration Gamma-ray Bursts (sGRB), but it remains to be seen whether this is a separate population to higher redshift bursts. Here we choose plausible Luminosity Functions (LF) for…

Astrophysics · Physics 2009-11-13 Robert Chapman , Robert S. Priddey , Nial R. Tanvir

The precise origin of short gamma ray bursts (SGRBs) remains an important open question in relativistic astrophysics. Increasingly, observational evidence suggests the merger of a binary compact object system as the source for most SGRBs,…

High Energy Astrophysical Phenomena · Physics 2014-03-21 Nicholas Stone , Abraham Loeb , Edo Berger

The joint observation of GW170817 and GRB170817A proved that binary neutron star (BNS) mergers are progenitors of short Gamma-ray Bursts (SGRB): this established a direct link between the still unsettled SGRB central engine and the outcome…

High Energy Astrophysical Phenomena · Physics 2020-09-30 Barbara Patricelli , Maria Grazia Bernardini

The frequency of short gamma-ray bursts (GRBs) in galaxies with distinct star formation histories can be used to constrain the lifetime of the progenitor systems. As an illustration, we consider here the constraints that can be derived from…

Astrophysics · Physics 2011-02-11 Zheng Zheng , Enrico Ramirez-Ruiz

Bimodal distribution of the observed duration of gamma-ray bursts (GRBs) has led to two distinct progenitors; compact star mergers, either two neutron stars (NSs) or a NS and a black hole (BH), for short GRBs (SGRBs), and so-called…

High Energy Astrophysical Phenomena · Physics 2023-05-25 Petrosian Vah/'e , Maria Giovanna Dainotti

Recently, the characterisation of binary systems of neutron stars has become central in various fields such as gravitational waves, gamma-ray bursts (GRBs), and the chemical evolution of galaxies. In this work, we explore possible…

Astrophysics of Galaxies · Physics 2023-05-03 L. Cavallo , L. Greggio

The merging of two neutron stars (MNS) is thought to be the source of short gamma-ray bursts (SGRB) and gravitational wave transients, as well as the main production site of r-process elements like Eu. We have derived a new delay time…

High Energy Astrophysical Phenomena · Physics 2019-04-17 Paolo Simonetti , Francesca Matteucci , Laura Greggio , Gabriele Cescutti
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