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The nature of fast radio bursts (FRBs) is currently unknown. Repeating FRBs offer better opportunity than non-repeating FRBs since their simultaneous multi-wavelength counterparts might be identified. The magnetar flare model of FRBs is one…

高能天体物理现象 · 物理学 2021-03-17 Shangyu Sun , Wenfei Yu , Yunwei Yu , Dongming Mao

Recently, a fast radio burst (FRB)-like event is found to be associated with a Galactic magnetar, SGR 1935+2154, accompanied by an X-ray burst. We find this radio burst challenges the typical emission mechanisms involving magnetars, which…

高能天体物理现象 · 物理学 2020-08-27 Jie-Shuang Wang

Since their discovery in 2007, much effort has been devoted to uncovering the sources of the extragalactic, millisecond-duration fast radio bursts (FRBs). A class of neutron star known as magnetars is a leading candidate source of FRBs.…

Magnetars are highly magnetized neutron stars that are characterized by recurrent emission of short-duration bursts in soft gamma-rays/hard X-rays. Recently, FRB 200428 were found to be associated with an X-ray burst from a Galactic…

高能天体物理现象 · 物理学 2021-03-17 G. Q. Zhang , Zuo-Lin Tu , F. Y. Wang

As one class of the most important objects in the universe, magnetars can produce a lot of different frequency bursts including X-ray bursts. In \cite{2022ApJS..260...24C}, 75 X-ray bursts produced by magnetar SGR J1935+2154 during an…

高能天体物理现象 · 物理学 2023-10-11 Wen-Long Zhang , Xiu-Juan Li , Yu-Peng Yang , Shuang-Xi Yi , Cheng-Kui Li , Qing-Wen Tang , Ying Qin , Fa-Yin Wang

Fast radio bursts (FRBs) are millisecond radio transients observed at cosmological distances. The nature of their progenitors is still a matter of debate, although magnetars are invoked by most models. The proposed FRB-magnetar connection…

The most common form of magnetar activity is short X-ray bursts, with durations from milliseconds to seconds, and luminosities ranging from $10^{36}$ to $10^{43}\ {\rm erg}\,{\rm s}^{-1}$. Recently, an X-ray burst from the galactic magnetar…

高能天体物理现象 · 物理学 2022-08-02 Yajie Yuan , Andrei M. Beloborodov , Alexander Y. Chen , Yuri Levin , Elias R. Most , Alexander A. Philippov

Lyutikov (2002) predicted "radio emission from soft gamma-ray repeaters (SGRs) during their bursting activity". Detection of a Mega-Jansky radio burst in temporal coincidence with high energy bursts from a Galactic magnetar SGR 1935+2154…

高能天体物理现象 · 物理学 2020-05-13 Maxim Lyutikov , Sergey Popov

Fast radio bursts (FRBs) are extremely strong radio flares lasting several milliseconds, most of which come from unidentified objects at a cosmological distance. They can be apparently repeating or not. In this paper, we analyzed 18…

Recent observations of the periodic Fast Radio Burst source 180916.J0158+65 (FRB 180916) find small linear polarization position angle swings during and between bursts, with a burst activity window that becomes both narrower and earlier at…

高能天体物理现象 · 物理学 2021-03-24 Dongzi Li , J. J. Zanazzi

Recently, the Galactic magnetar SGR J1935+2154 has garnered attention due to its emission of an extremely luminous radio burst, reminiscent of Fast Radio Bursts (FRBs). SGR J1935+2154 is one of the most active magnetars, displaying flaring…

The origin and phenomenology of the Fast Radio Burst (FRB) remains unknown despite more than a decade of efforts. Though several models have been proposed to explain the observed data, none is able to explain alone the variety of events so…

高能天体物理现象 · 物理学 2021-03-26 Luciano Nicastro , Cristiano Guidorzi , Eliana Palazzi , Luca Zampieri , Massimo Turatto , Angela Gardini

Fast Radio Bursts (FRBs) are energetic phenomena that have significant implications for understanding fundamental physics and the universe. Recent observations of FRB 121102, FRB 20220912A, and FRB 20201124A by the Five-hundred-meter…

高能天体物理现象 · 物理学 2024-11-07 Yan-Qi Du , Ping Wang , Li-Ming Song , Shao-Lin Xiong

We analyze the slow periodicities identified in burst sequences from FRB 121102 and FRB 180916 with periods of about 16 and 160 d, respectively, while also addressing the absence of any fast periodicity that might be associated with the…

高能天体物理现象 · 物理学 2022-04-21 J. M. Cordes , I. Wasserman , Shami Chatterjee , Gauri Batra

The association between FRB 20200428D and the Galactic magnetar SGR J1935+2154 makes magnetars the leading engine of cosmological fast radio bursts (FRBs). However, there is a list of puzzles for this magnetar-for-all-FRBs scenario: known…

高能天体物理现象 · 物理学 2025-10-09 Bing Zhang , Rui-Chong Hu

Magnetars are the leading candidate sources of fast radio bursts (FRBs). However, the observational probes of the connections between magnetars and FRBs are severely limited by the paucity of detection of highly energetic radio events from…

高能天体物理现象 · 物理学 2025-12-03 Banshi Lal , Yogesh Maan , Moaz Abdelmaguid , Visweshwar Ram Marthi , Joseph D. Gelfand , Samayra Straal

One scenario for the generation of fast radio bursts (FRBs) is magnetic reconnection in a current sheet of the magnetar wind. Compressed by a strong magnetic pulse induced by a magnetar flare, the current sheet fragments into a self-similar…

高能天体物理现象 · 物理学 2022-06-22 J. F. Mahlmann , A. A. Philippov , A. Levinson , A. Spitkovsky , H. Hakobyan

Fast radio burst (FRB) is mysterious phenomenon with millisecond-duration radio pulses observed mostly from cosmological distance. The association between FRB 200428 and a magnetar X-ray burst (MXB) from SGR J1935+2154 has significantly…

The discovery of periodicity in the arrival times of the fast radio bursts (FRBs) poses a challenge to the oft-studied magnetar scenarios. However, models that postulate that FRBs result from magnetized shocks or magnetic reconnection in a…

高能天体物理现象 · 物理学 2021-08-16 Navin Sridhar , Brian D. Metzger , Paz Beniamini , Ben Margalit , Mathieu Renzo , Lorenzo Sironi , Konstantinos Kovlakas