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Growing evidence connects the progenitor systems of the short-hard subclass of gamma-ray bursts (GRBs) to the merger of compact object binaries composed by two neutron stars (NSs) or by a NS and a black hole (BH). The recent observation of…

High Energy Astrophysical Phenomena · Physics 2018-10-17 Riccardo Ciolfi

The recent multimessenger observation of the short gamma-ray burst (SGRB) GRB 170817A together with the gravitational wave (GW) event GW170817 provides evidence for the long-standing hypothesis associating SGRBs with binary neutron star…

High Energy Astrophysical Phenomena · Physics 2019-07-24 Riccardo Ciolfi , Wolfgang Kastaun , Jay Vijay Kalinani , Bruno Giacomazzo

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

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

GW170817 and GRB 170817A provided direct evidence that binary neutron star (NSNS) mergers can produce short gamma-ray bursts (sGRBs). However, questions remain about the nature of the central engine. Depending on the mass, the remnant from…

High Energy Astrophysical Phenomena · Physics 2024-08-27 Jamie Bamber , Antonios Tsokaros , Milton Ruiz , Stuart L. Shapiro

Events GW170817 and GRB 170817A provide the best confirmation so far that compact binary mergers where at least one of the companions is a neutron star (NS) can be the progenitors of short gamma-ray bursts (sGRBs). An open question for…

High Energy Astrophysical Phenomena · Physics 2019-04-19 Milton Ruiz , Antonios Tsokaros , Vasileios Paschalidis , Stuart L. Shapiro

The multimessenger event GW170817/GRB 170817A confirmed that binary neutron star (BNS) mergers can produce short gamma-ray burst (SGRB) jets. This evidence promoted new investigations on the mechanisms through which a BNS merger remnant can…

High Energy Astrophysical Phenomena · Physics 2021-07-07 Andrea Pavan , Riccardo Ciolfi , Jay Vijay Kalinani , Andrea Mignone

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 joint detection of GW 170817 and GRB 170817A indicated that at least a fraction of short gamma ray bursts (SGRBs) originate from binary neutron star (BNS) mergers. One possible remnant of a BNS merger is a rapidly rotating, strongly…

High Energy Astrophysical Phenomena · Physics 2020-02-26 Liang-Duan Liu , He Gao , Bing Zhang

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 (BNS) merger GW170817 was the first astrophysical source detected in gravitational waves and multi-wavelength electromagnetic radiation. The almost simultaneous observation of a pulse of gamma-rays proved that BNS…

We model the short gamma-ray bursts (GRB) 090510 as the product of a magnetized neutron star (NS) binary merger. Accounting for the NS critical mass constraint given by the mass of PSR J0952--0607, we infer that GRB 090510 was a…

High Energy Astrophysical Phenomena · Physics 2025-09-11 J. A. Rueda , R. Ruffini , Yu Wang

The recent multi-messenger discovery of binary neutron star (BNS) merger GW170817 showed that $\gamma$-ray emission in short GRBs is wider than the central energetic narrow cone, and weakly expands out to tens of degrees. Here we explore…

High Energy Astrophysical Phenomena · Physics 2018-08-21 Nihar Gupte , Imre Bartos

The origin of short gamma-ray bursts (sGRBs) is associated with outflows powered by the remnant of a binary neutron star merger. This remnant can be either a black hole or a highly magnetized, fastly spinning neutron star, also known as a…

High Energy Astrophysical Phenomena · Physics 2023-08-09 Gustavo Soares , Pablo Bosch , Davide Lazzati , Philipp Mösta

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 association of GRB170817A with GW170817 has confirmed the long-standing hypothesis that binary neutron star (BNS) mergers are the progenitors of at least some short gamma-ray bursts (SGRBs). This connection has ushered in an era in…

High Energy Astrophysical Phenomena · Physics 2021-09-08 Davide Lazzati , Rosalba Perna , Riccardo Ciolfi , Bruno Giacomazzo , Diego Lopez-Camara , Brian Morsony

Using numerical relativity simulations with a subgrid dynamo prescription to generate strong initial magnetic fields, we investigate the possibility of launching a jet-like outflow from the hypermassive neutron star (HMNS) during the early…

High Energy Astrophysical Phenomena · Physics 2023-04-21 Elias R. Most , Eliot Quataert

Binary neutron star (BNS) mergers are the leading model to explain the phenomenology of short gamma-ray bursts (SGRBs), which are among the most luminous explosions in the universe. Recent observations of long-lasting X-ray afterglows of…

High Energy Astrophysical Phenomena · Physics 2016-03-16 Daniel M. Siegel , Riccardo Ciolfi

Inspiraling and merging binary neutron stars are not only important source of gravitational waves, but also promising candidates for coincident electromagnetic counterparts. These systems are thought to be progenitors of short gamma-ray…

High Energy Astrophysical Phenomena · Physics 2017-11-03 Milton Ruiz , Stuart L. Shapiro

It seems that the wealth of information revealed by the multi-messenger observations of the binary neutron star (NS) merger event, GW170817/GRB 170817A/kilonova AT2017gfo, places irreconcilable constraints to models of the prompt emission…

High Energy Astrophysical Phenomena · Physics 2023-08-16 Shuang Du , Tingting Lin , Shujin Hou , Renxin Xu
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