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The binary neutron star merger GW170817/GRB170817A confirmed that at least some neutron star mergers are the progenitors of short gamma-ray bursts. Many short gamma-ray bursts have long-term x-ray afterglows that have been interpreted in…

高能天体物理现象 · 物理学 2019-09-04 Paul D. Lasky , Nikhil Sarin , Greg Ashton

We elucidate the feature of gravitational waves (GWs) from binary neutron star merger collapsing to a black hole by general relativistic simulation. We show that GW spectrum imprints the coalescence dynamics, formation process of disk,…

高能天体物理现象 · 物理学 2010-04-14 Kenta Kiuchi , Yuichiro Sekiguchi , Masaru Shibata , Keisuke Taniguchi

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…

高能天体物理现象 · 物理学 2019-07-24 Riccardo Ciolfi , Wolfgang Kastaun , Jay Vijay Kalinani , Bruno Giacomazzo

GW170817/GRB170817A, a short gamma-ray burst arising from a low-mass compact object merger was the first multi-messenger discovery of a compact binary system outside the local galactic neighborhood. From gravitational-wave measurements, we…

高能天体物理现象 · 物理学 2018-10-23 Chris Pankow

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…

天体物理学 · 物理学 2009-11-11 Joshua A. Faber , Thomas W. Baumgarte , Stuart L. Shapiro , Keisuke Taniguchi

In 2017, LIGO-Virgo collaborations reported detection of the first neutron star merger event, GW170817, which is accompanied by electromagnetic counterparts from radio to gamma rays. Although high-energy neutrinos were not detected from…

高能天体物理现象 · 物理学 2019-06-12 Shigeo S. Kimura

Advanced LIGO and Virgo detectors reported the first binary neutron star merger candidate in the third observing run, S190425z, on 25th April 2019. A weak $\gamma$-ray excess was reported nearly coincidentally by the INTEGRAL satellite…

高能天体物理现象 · 物理学 2020-03-18 M. Saleem , L. Resmi , K. G. Arun , S. Mohan

One possible progenitor of short gamma-ray bursts (GRBs) is thought to be from a double neutron star (NS) merger, and the remnant of such a merger may be a supramassive NS, which is supported by rigid rotation and through its survival of…

高能天体物理现象 · 物理学 2021-05-12 Yong Yuan , Hou-Jun Lü , Hao-Yu Yuan , Shuai-Bing Ma , Wei-Hua Lei , En-Wei Liang

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,…

高能天体物理现象 · 物理学 2014-03-21 Nicholas Stone , Abraham Loeb , Edo Berger

Mergers of black hole-neutron star (BHNS) binaries have now been observed by GW detectors with the recent announcement of GW200105 and GW200115. Such observations not only provide confirmation that these systems exist, but will also give…

A structured gamma-ray burst jet could explain the dimness of the prompt emission observed from GRB$\,170817$A but the exact form of this structure is still ambiguous. However, with the promise of future joint gravitational wave and…

高能天体物理现象 · 物理学 2020-03-18 Fergus Hayes , Ik Siong Heng , John Veitch , Daniel Williams

In the upcoming gravitational wave (GW) observing runs, identifying host galaxies is crucial as it provides essential redshift information and enables the use of GW events as standard sirens. However, pinpointing host galaxies remains…

高能天体物理现象 · 物理学 2024-08-05 Mankeun Jeong , Myungshin Im

We present a search for binary neutron star mergers that produced gravitational-waves during the first observing run of Advanced LIGO and gamma-ray emission seen by either \textit{Swift}-BAT or Fermi-GBM, similar to GW170817 and GRB…

高能天体物理现象 · 物理学 2019-06-11 Alexander H. Nitz , Alex B. Nielsen , Collin D. Capano

Mergers of double neutron stars (DNSs) could lead to the formation of a long-lived massive remnant NS, which has been previously suggested to explain the AT 2017gfo kilonova emission in the famous GW170817 event. For an NS-affected…

高能天体物理现象 · 物理学 2021-10-27 Guang-Lei Wu , Yun-Wei Yu , Jin-Ping Zhu

Recent follow-up observations of the binary neutron star (NS) merging event GW170817/SGRB 170817A reveal that its X-ray/optical/radio emissions are brightening continuously up to $\sim 100$ days post-merger. This late-time brightening is…

高能天体物理现象 · 物理学 2018-04-02 Jin-Jun Geng , Zi-Gao Dai , Yong-Feng Huang , Xue-Feng Wu , Long-Biao Li , Bing Li , Yan-Zhi Meng

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…

高能天体物理现象 · 物理学 2025-01-14 Qin-Mei Li , Qi-Bin Sun

The discovery by Advanced LIGO/Virgo of gravitational waves from the binary neutron star (NS) merger GW170817, and subsequently by astronomers of transient counterparts across the electromagnetic (EM) spectrum, has initiated the era of…

高能天体物理现象 · 物理学 2017-10-18 Brian D. Metzger

In light of the joint multimessenger detection of a binary neutron star merger as the gamma-ray burst GRB 170817A and in gravitational waves as GW170817, we reanalyze the Fermi Gamma-ray Burst Monitor data of one of the closest short…

The mergers of two neutron stars are typically accompanied by broad-band electromagnetic emission from either a relativistic jet or a kilonova. It has also been long predicted that coherent radio emission will occur during the merger phase…