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Compact binary mergers, with neutron stars or neutron star and black-hole components, are thought to produce various electromagnetic counterparts: short gamma-ray bursts (GRBs) from ultra-relativistic jets followed by broadband afterglow;…

高能天体物理现象 · 物理学 2017-06-28 Gavin P Lamb , Shiho Kobayashi

Gravitational waves generated by the final merger of compact binary systems depend on the structure of the binary's members. If the binary contains neutron stars, measuring such waves can teach us about the properties of matter at extreme…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Scott A. Hughes

Here we present stringent low-frequency 185MHz limits on coherent radio emission associated with a short gamma-ray burst (SGRB). Our observations of the short GRB 180805A were taken with the upgraded Murchison Widefield Array (MWA)…

GW170817-GRB 170817A provided the first observation of gravitational waves from a neutron star merger with associated transient counterparts across the entire electromagnetic spectrum. This discovery demonstrated the long-hypothesized…

广义相对论与量子宇宙学 · 物理学 2024-03-07 M. Pillas , T. Dal Canton , C. Stachie , B. Piotrzkowski , F. Hayes , R. Hamburg , E. Burns , J. Wood , P. A. Duverne , N. Christensen

The duration of orbital decay induced by gravitational waves (GWs) is often the bottleneck of the evolutionary phases going from star formation to a merger. We show here that kicks imparted to the newly born compact object during the second…

高能天体物理现象 · 物理学 2024-04-03 Paz Beniamini , Tsvi Piran

Gravitational wave (GW) and short Gamma Ray Burst (sGRB) observations provide us with complementary views of compact object mergers. The paucity of binary neutron star merger (BNS) detections in the latest LIGO/Virgo/KAGRA (LVK) observing…

高能天体物理现象 · 物理学 2026-04-17 Keerthi Kunnumkai , Antonella Palmese , Brendan O'Connor , Amanda Farah , Ignacio Magana Hernandez

Fast radio bursts (FRBs) are extragalactic, bright pulses of emission at radio frequency with milliseconds duration. Observationally, FRBs can be divided into two classes, repeating FRBs and non-repeating FRBs. At present, twenty repeating…

高能天体物理现象 · 物理学 2020-04-22 G. Q. Zhang , S. X. Yi , F. Y. Wang

Fast radio bursts (FRBs) at cosmological distances have recently been discovered, whose duration is about milliseconds. We argue that the observed short duration is difficult to explain by giant flares of soft gamma-ray repeaters, though…

高能天体物理现象 · 物理学 2015-06-16 Tomonori Totani

Since the discovery of FRB 200428 associated with the Galactic SGR 1935+2154, magnetars are considered to power fast radio bursts (FRBs). It is widely believed that magnetars could form by core-collapse (CC) explosions and compact binary…

高能天体物理现象 · 物理学 2021-02-17 Z. Y. Zhao , G. Q. Zhang , Y. Y. Wang , Z. L. Tu , F. Y. Wang

The joint detection of GW170817 and GRB 170817A opened the era of multi-messenger astronomy with gravitational waves (GWs) and provided the first direct probe that at least some binary neutron star (BNS) mergers are progenitors of short…

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…

高能天体物理现象 · 物理学 2023-07-04 Avery Eddins , Kyung-hwan Lee , Alessandra Corsi , Imre Bartos , Zsuzsanna Marka , Szabolcs Marka

The product of a compact star merger is usually hypothesized to be a hyperaccreting black hole, typically resulting in a gamma-ray burst (GRB) with a duration shorter than 2~s. However, recent observations of GRB~211211A and GRB~230307A,…

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

Neutron star mergers are among the most promising sources of gravitational waves for advanced ground-based detectors. These mergers are also expected to power bright electromagnetic signals, in the form of short gamma-ray bursts,…

We describe the first observations of the same celestial object with gravitational waves and light. * GW170817 was the first detection of a neutron star merger with gravitational waves. * The detection of a spatially coincident weak burst…

高能天体物理现象 · 物理学 2021-12-01 Raffaella Margutti , Ryan Chornock

In light of the recent dazzling discovery of GW170817, we discuss several new scientific opportunities that would emerge in multi-messenger time-domain astrophysics if a facility like the next generation Very Large Array (ngVLA) were to…

Black hole neutron star (BHNS) mergers have recently been detected through their gravitational-wave (GW) emission. BHNS mergers could also produce electromagnetic (EM) emission as a short gamma-ray burst (sGRB), and/or an sGRB afterglow…

高能天体物理现象 · 物理学 2022-09-20 Oliver M. Boersma , Joeri van Leeuwen

Determining the equation of state of matter at nuclear density and hence the structure of neutron stars has been a riddle for decades. We show how the imminent detection of gravitational waves from merging neutron star binaries can be used…

广义相对论与量子宇宙学 · 物理学 2014-09-05 Kentaro Takami , Luciano Rezzolla , Luca Baiotti

The mergers of compact binaries with at least one neutron star component are the potential leading sites of the production and ejection of $r$-process elements. Discoveries of galactic binary pulsars, short gamma-ray bursts, and…

The next generation gravitational waves (GW) detectors are most sensitive to GW emitted by compact (neutron star/black hole) binary mergers. If one of those is a neutron star the merger will also emit electromagnetic radiation via three…

高能天体物理现象 · 物理学 2015-03-24 Ben Margalit , Tsvi Piran