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The merger of a double neutron star (NS-NS) binary may result in a rapidly rotating massive NS with an extremely strong magnetic field (i.e., a millisecond magnetar). In this case, the magnetic spin-down of the NS remnant provides an…

高能天体物理现象 · 物理学 2017-07-06 He Gao , Bing Zhang , Hou-Jun Lü , Ye Li

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…

高能天体物理现象 · 物理学 2020-02-26 Liang-Duan Liu , He Gao , Bing Zhang

The contemporaneous detection of gravitational waves and gamma rays from the GW170817/GRB 170817A, followed by kilonova emission a day after, confirmed compact binary neutron-star mergers as progenitors of short-duration gamma-ray bursts…

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…

高能天体物理现象 · 物理学 2025-09-11 J. A. Rueda , R. Ruffini , Yu Wang

GRB 080503 is a short gamma-ray burst (GRB) detected by \emph{Swift} and has been classified as a compact-star-merger-origin GRB. The soft extended emission and the simultaneous late re-brightening in both the X-ray and optical afterglow…

高能天体物理现象 · 物理学 2015-07-15 He Gao , Xuan Ding , Xue-Feng Wu , Zi-Gao Dai , Bing Zhang

Short gamma-ray bursts (GRBs) are the aftermath of compact binary mergers involving neutron stars. If the merger remnant is a millisecond magnetar instead of a black hole, a significant proportion of the rotational energy deposited to the…

高能天体物理现象 · 物理学 2024-01-23 Ankur Ghosh , C. S. Vaishnava , L. Resmi , Kuntal Misra , K. G. Arun , Amitesh Omar , N. K. Chakradhari

The central engine that powers gamma-ray bursts (GRBs), the most powerful explosions in the universe, is still not identified. Besides hyper-accreting black holes, rapidly spinning and highly magnetized neutron stars, known as millisecond…

Young, rapidly spinning magnetars are invoked as central engines behind a diverse set of transient astrophysical phenomena, including gamma-ray bursts (GRB), super-luminous supernovae (SLSNe), fast radio bursts (FRB), and binary neutron…

高能天体物理现象 · 物理学 2018-09-12 Ben Margalit , Brian D. Metzger , Edo Berger , Matt Nicholl , Tarraneh Eftekhari , Raffaella Margutti

The recent detection of gravitational waves and electromagnetic counterparts from the double neutron star merger event GW+EM170817, supports the standard paradigm of short gamma-ray bursts (SGRBs) and kilonovae/macronovae. It is important…

The coalescence of binary neutron stars (NSs) may in some cases produce a stable massive NS remnant rather than a black hole. Due to the substantial angular momentum from the binary, such a remnant is born rapidly rotating and likely…

高能天体物理现象 · 物理学 2015-06-17 Brian D. Metzger , Anthony L. Piro

The merger of binary neutron stars (NS-NS) as the progenitor of short Gamma-ray bursts (GRBs) has been confirmed by the discovery of the association of the gravitational wave (GW) event GW170817 with GRB 170817A. However, the merger product…

高能天体物理现象 · 物理学 2021-04-28 Shuai-Bing Ma , Wei Xie , Bin Liao , Bin-Bin Zhang , Hou-Jun Lü , Yu Liu , Wei-Hua Lei

For decades, gamma-ray bursts (GRBs) have been broadly divided into `long'- and `short'-duration bursts, lasting more or less than 2s, respectively. However, this dichotomy does not map perfectly to the two progenitor channels that are…

A long-standing paradigm in astrophysics is that collisions- or mergers- of two neutron stars (NSs) form highly relativistic and collimated outflows (jets) powering gamma-ray bursts (GRBs) of short (< 2 s) duration. However, the…

One favored progenitor model for short duration gamma-ray bursts (SGRBs) is the coalescence of two neutron stars (NS-NS). One possible outcome of such a merger would be a rapidly spinning, strongly magnetized neutron star (known as a…

高能天体物理现象 · 物理学 2015-05-27 Hou-Jun Lü , Bing Zhang , Wei-Hua Lei , Ye Li , Paul D Lasky

A massive millisecond magnetar may survive a merger of a neutron star (NS) binary, which would continuously power the merger ejecta. We develop a generic dynamic model for the merger ejecta with energy injection from the central magnetar.…

太阳与恒星天体物理 · 物理学 2013-10-17 Yun-Wei Yu , Bing Zhang , He Gao

Neutron star binary mergers are strong sources of gravitational waves (GWs). Promising electromagnetic counterparts are short gamma-ray bursts (GRBs) but the emission is highly collimated. We propose that the scattering of the long-lasting…

高能天体物理现象 · 物理学 2015-08-19 Shota Kisaka , Kunihito Ioka , Takashi Nakamura

A binary neutron star (BNS) merger has been widely argued to be one of the progenitors of a short gamma-ray burst (SGRB). This central engine can be verified if its gravitational-wave (GW) event is detected simultaneously. Once confirmed,…

高能天体物理现象 · 物理学 2017-10-03 Di Xiao , Liang-Duan Liu , Zi-Gao Dai , Xue-Feng Wu

The coalescence of a binary neutron star (NS) system may in some cases produce a massive NS remnant that is long-lived and, potentially, indefinitely stable to gravitational collapse. Such a remnant has been proposed as an explanation for…

高能天体物理现象 · 物理学 2015-06-17 Brian D. Metzger , Geoffrey C. Bower

Close binary systems consisting of two neutron stars (BNS) emit gravitational waves, that allow them to merge on timescales shorter than Hubble time. It is widely believed, that NS-NS mergers in such systems power short gamma-ray bursts…

Early X-ray emission of Gamma-Ray Bursts (GRBs) traces the transition between the prompt emission and the afterglow radiation, and its rapid flux decline is often interpreted as the tail of the prompt emission. As such, it can offer…

高能天体物理现象 · 物理学 2026-04-08 Annarita Ierardi , Gor Oganesyan , Stefano Ascenzi , Marica Branchesi , Biswajit Banerjee , Samuele Ronchini
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