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Related papers: A comparison between short GRB afterglows and AT20…

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The combined detection of a gravitational-wave signal, kilonova, and short gamma-ray burst (sGRB) from GW170817 marked a scientific breakthrough in the field of multi-messenger astronomy. But even before GW170817, there have been a number…

Very recently, the gravitational-wave (GW) event GW170817 was discovered to be associated with the short gamma-ray burst (GRB) 170817A. Multi-wavelength follow-up observations were carried out, and X-ray, optical, and radio counterparts to…

High Energy Astrophysical Phenomena · Physics 2017-12-13 Di Xiao , Liang-Duan Liu , Zi-Gao Dai , Xue-Feng Wu

The discovery of GW170817 and GRB 170817A in tandem with AT 2017gfo cemented the connection between neutron star mergers, short gamma-ray bursts (GRBs), and kilonovae. To investigate short GRB observations in the context of diverse kilonova…

For on-axis typical short gamma-ray bursts (sGRBs), the forward shock emission is usually so bright that renders the identification of kilonovae (also known as macronovae) in the early afterglow ($t<0.5$ d) phase rather challenging. This is…

High Energy Astrophysical Phenomena · Physics 2020-04-29 Zhi-Ping Jin , Stefano Covino , Neng-Hui Liao , Xiang Li , Paolo D'Avanzo , Yi-Zhong Fan , Da-Ming Wei

GRB 160821B is a short duration gamma-ray burst (GRB) detected and localized by the Neil Gehrels Swift Observatory in the outskirts of a spiral galaxy at z=0.1613, at a projected physical offset of 16 kpc from the galaxy's center. We…

GRB 170817A is the first short gamma-ray burst (GRB) with direct detection of the gravitational-wave radiation and also the spectroscopically identified macronova emission (i.e., AT 2017gfo). The prompt emission of this burst, however, is…

High Energy Astrophysical Phenomena · Physics 2018-02-02 Chuan Yue , Qian Hu , Fu-Wen Zhang , Yun-Feng Liang , Zhi-Ping Jin , Yuan-Chuan Zou , Yi-Zhong Fan , Da-Ming Wei

The historic first joint detection of both gravitational wave and electromagnetic emission from a binary neutron star merger cemented the association between short gamma-ray bursts (SGRBs) and compact object mergers, as well as providing a…

We present a comprehensive comparison of the properties of the radio through X-ray counterpart of GW170817 and the properties of short-duration gamma-ray bursts (GRBs). For this effort, we utilize a sample of 36 short GRBs spanning a…

The recent discovery of a faint gamma-ray burst (GRB) coincident with the gravitational wave (GW) event GW 170817 revealed the existence of a population of low-luminosity short duration gamma-ray transients produced by neutron star mergers…

High Energy Astrophysical Phenomena · Physics 2018-11-21 E. Troja , G. Ryan , L. Piro , H. van Eerten , S. B. Cenko , Y. Yoon , S. -K. Lee , M. Im , T. Sakamoto , P. Gatkine , A. Kutyrev , S. Veilleux

The multi-messenger discovery of gravitational waves (GWs) and light from the binary neutron star (NS) merger GW170817, associated with Gamma-Ray Burst (GRB) 170817A and kilonova AT2017gfo, has marked the start of a new era in astrophysics.…

High Energy Astrophysical Phenomena · Physics 2021-02-24 C. Grandorf , J. McCarty , P. Rajkumar , H. Harbin , K. H. Lee , A. Corsi , I. Bartos , Z. Marka , A. Balasubramanian , S. Marka

Here, we report the discovery of a kilonova associated with the nearby (350 Mpc) minute-duration GRB 211211A. In tandem with deep optical limits that rule out the presence of an accompanying supernova to $M_I > -13$ mag at 17.7 days…

The detection of a kilo/macronova electromagnetic counterpart (AT2017gfo) of the first gravitational wave signal compatible with the merger of two neutron stars (GW170817) has confirmed the occurrence of r-process nucleosynthesis in this…

High Energy Astrophysical Phenomena · Physics 2017-12-13 Albino Perego , David Radice , Sebastiano Bernuzzi

We report our identification of the optical afterglow and host galaxy of the short-duration gamma-ray burst GRB 160821B. The spectroscopic redshift of the host is $z=0.162$, making it one of the lowest redshift sGRBs identified by Swift.…

Short gamma-ray bursts result from mergers of two neutron stars or from collapsars, but probably at a smaller rate. In the first case, a kilonova occurs while in the second case a Type Ic supernova is expected. } {Even if future…

High Energy Astrophysical Phenomena · Physics 2019-01-29 Nidhal Guessoum , Hannachi Zitouni , Robert Mochkovitch

The multi-messenger detection of GW170817 showed that binary neutron star (BNS) mergers are progenitors of (at least some) short gamma-ray bursts (GRBs), and that short GRB jets (and their afterglows) can have structures (and observational…

High Energy Astrophysical Phenomena · Physics 2023-07-04 Avery Eddins , Kyung-hwan Lee , Alessandra Corsi , Imre Bartos , Zsuzsanna Marka , Szabolcs Marka

The binary neutron star merger GW170817 was the first multi-messenger event observed in both gravitational and electromagnetic waves. The electromagnetic signal began approximately 2 seconds post-merger with a weak, short burst of…

We systematically reanalyzed all Gamma-Ray Burst (GRB) afterglow data published through the end of 2002, in an attempt to detect the predicted supernova light component and to gain statistical insight on its phenomenological properties. We…

Astrophysics · Physics 2009-11-10 A. Zeh , S. Klose , D. H. Hartmann

On 17 August 2017, a gravitational wave event (GW170817) and an associated short gamma-ray burst (GRB 170817A) from a binary neutron star merger had been detected. The followup optical/infrared observations also identified the…

The successful joint observation of the gravitational wave event GW170817 and its multi-wavelength electromagnetic counterparts first enables human to witness a definite merger event of two neutron stars (NSs). This historical event…

High Energy Astrophysical Phenomena · Physics 2018-07-25 Yun-Wei Yu , Liang-Duan Liu , Zi-Gao Dai

We present uniform modeling of eight kilonovae, five following short gamma-ray bursts (GRBs; including GRB170817A) and three following long GRBs. We model their broadband afterglows to determine the relative contributions of afterglow and…

High Energy Astrophysical Phenomena · Physics 2024-11-26 J. C. Rastinejad , W. Fong , C. D. Kilpatrick , M. Nicholl , B. D. Metzger
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