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The emission from shock breakouts (SBOs) represents the earliest electromagnetic (EM) signal emitted by cataclysmic events involving the formation or the merger of neutron stars (NSs). As such, SBOs carry unique information on the structure…

High Energy Astrophysical Phenomena · Physics 2023-08-21 Sandhya S. Menon , Dafne Guetta , Simone Dall'Osso

A millisecond magnetar engine has been widely suggested to exist in gamma-ray burst (GRB) phenomena, in view of its substantial influences on the GRB afterglow emission. In this paper, we investigate the effects of the magnetar engine on…

High Energy Astrophysical Phenomena · Physics 2022-09-07 Zhen-Dong Zhang , Yun-Wei Yu , Liang-Duan Liu

Rapidly spinning magnetars are potential candidates for the energy source of supernovae (SNe) and gamma-ray bursts and the most promising sources for continuous gravitational waves (GWs) detected by ground-based GW detectors. Continuous GWs…

High Energy Astrophysical Phenomena · Physics 2024-04-30 Lang Xie , Hong-Yu Gong , Long LI , Da-Ming Wei , J. L. Han

We assess the detection prospects of a gravitational wave background associated with sub-luminous gamma-ray bursts (SL-GRBs). We assume that the central engines of a significant proportion of these bursts are provided by newly born…

High Energy Astrophysical Phenomena · Physics 2015-05-19 E. Howell , T. Regimbau , A. Corsi , D. Coward , R. Burman

The nature of the remnant of a binary neutron star (BNS) merger is uncertain. Though certainly a black hole (BH) in the cases of the most massive BNSs, X-ray lightcurves from gamma-ray burst (GRB) afterglows suggest a neutron star (NS) as a…

High Energy Astrophysical Phenomena · Physics 2026-01-09 Clara Plasse , Alexis Reboul-Salze , Jérome Guilet , Diego Götz , Nicolas Leroy , Raphaël. Raynaud , Matteo Bugli , Tito Dal Canton

A newly-born magnetar is thought to be central engine of some long gamma-ray bursts (GRBs). We investigate the evolution of the electromagnetic (EM) emission from the magnetic dipole (MD) radiation wind injected by spin-down of a newly-born…

High Energy Astrophysical Phenomena · Physics 2018-08-22 Hou-Jun Lü , Le Zou , Lin Lan , En-Wei Liang

Newly born massive magnetars are generally considered to be produced by binary neutron star (NS) mergers, which could give rise to short gamma-ray bursts (SGRBs). The strong magnetic fields and fast rotation of these magnetars make them…

High Energy Astrophysical Phenomena · Physics 2017-04-26 Quan Cheng , Shuang-Nan Zhang , Xiao-Ping Zheng

The light curve of many supernovae (SNe) and gamma-ray bursts (GRBs) can be explained by a sustained injection of extra energy from its possible central engine, a rapidly rotating strongly magnetic neutron star (i.e. magnetar). The magnetic…

High Energy Astrophysical Phenomena · Physics 2016-09-14 Wynn C. G. Ho

Superluminous supernovae (SLSNe) are a distinct class of stellar explosions, exhibiting peak luminosities 10-100 times brighter than those of normal SNe. Their extreme luminosities cannot be explained by the radioactive decay of…

High Energy Astrophysical Phenomena · Physics 2026-01-16 Jinghao Zhang , Yacheng Kang , Jiahang Zhong , Hong-Bo Li , Liang-Duan Liu , Yun-Wei Yu , Lijing Shao

The X-ray plateau emission observed in many Long gamma-ray bursts (LGRBs) has been usually interpreted as the spin-down luminosity of a rapidly spinning, highly magnetized neutron star (millisecond magnetar). If this is true, then the…

High Energy Astrophysical Phenomena · Physics 2022-08-17 Lang Xie , Da-Ming Wei , Yun Wang , Zhi-Ping Jin

GRB 160821B is a short gamma-ray burst (GRB) at redshift $z=0.16$, with a duration less than 1 second and without detection of any "extended emission" up to more than 100 seconds in both {\em Swift}/BAT and {\em Fermi}/GBM bands. An X-ray…

High Energy Astrophysical Phenomena · Physics 2017-02-08 Hou-Jun Lü , Hai-Ming Zhang , Shu-Qing Zhong , Shu-Jin Hou , Hui Sun , Jared Rice , En-Wei Liang

Binary neutron-star (BNS) mergers are accompanied by multi-messenger emissions, including gravitational wave (GW), neutrino, and electromagnetic signals. Some fraction of BNS mergers may result in a rapidly spinning magnetar as a remnant,…

High Energy Astrophysical Phenomena · Physics 2025-08-22 Mainak Mukhopadhyay , Shigeo S. Kimura , Brian D. Metzger

Binary neutron star (NS) mergers are among the most promising sources of gravitational waves (GWs), as well as candidate progenitors for short Gamma-Ray Bursts (SGRBs). Depending on the total initial mass of the system, and the NS equation…

High Energy Astrophysical Phenomena · Physics 2015-06-22 Simone Dall'Osso , Bruno Giacomazzo , Rosalba Perna , Luigi Stella

Magnetic flares and induced oscillations of magnetars (super-magnetized neutron stars) are promising sources of gravitational waves (GWs). We suggest that the GW emission, if any, would last longer than the observed X-ray quasi-periodic…

High Energy Astrophysical Phenomena · Physics 2015-04-23 Kazumi Kashiyama , Kunihito Ioka

The initial spin periods of newborn magnetars are \textbf{strongly associated with the origin of their strong magnetic fields, both of which can affect the electromagnetic radiation and gravitational waves (GWs) emitted at their birth.}…

High Energy Astrophysical Phenomena · Physics 2024-11-01 Yu-Long Yan , Quan Cheng , Xiao-Ping Zheng , Xia-Xia Ouyang

Core-collapse supernovae are fascinating astrophysical objects for multimessenger studies. Gravitational waves (GWs) are expected to play a role in the supernova explosion mechanism, but their modelling is also challenging due to the…

High Energy Astrophysical Phenomena · Physics 2021-11-10 Odysse Halim , Claudio Casentini , Marco Drago , Viviana Fafone , Kate Scholberg , Carlo Francesco Vigorito , Giulia Pagliaroli

Continuous gravitational waves (GWs) of neutrons stars haven't been detected directly until now. One possible way to indirectly identify their signatures is via the correlation between magnetars and gamma-ray bursts (GRBs), since, under…

High Energy Astrophysical Phenomena · Physics 2024-03-05 Shuang Du

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…

High Energy Astrophysical Phenomena · Physics 2021-05-12 Yong Yuan , Hou-Jun Lü , Hao-Yu Yuan , Shuai-Bing Ma , Wei-Hua Lei , En-Wei Liang

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…

High Energy Astrophysical Phenomena · Physics 2018-09-12 Ben Margalit , Brian D. Metzger , Edo Berger , Matt Nicholl , Tarraneh Eftekhari , Raffaella Margutti

Magnetar is proposed as one of the possible central engines for a gamma-ray burst (GRB). Recent studies show that if a magnetar has a rotational axis misaligned from the magnetic one, a periodic lightcurve pattern is expected with a period…

High Energy Astrophysical Phenomena · Physics 2024-08-13 Le Zou , Ji-Gui Cheng
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