A fast radio burst associated with a Galactic magnetar.
Christopher D. Bochenek,Vikram Ravi,Konstantin Belov,Gregg Hallinan,Jonathon Kocz,Jonathon Kocz,Shri Kulkarni,D. McKenna +7 more
TLDR
A millisecond-duration radio burst from the Galactic magnetar SGR-1935+2154 with a fluence of 1.5 ± 0.3 megajansky milliseconds was detected by the STARE2 radio array in the 1,281-1,468 megahertz band.Abstract:
Since their discovery in 20071, much effort has been devoted to uncovering the sources of the extragalactic, millisecond-duration fast radio bursts (FRBs)2. A class of neutron stars known as magnetars is a leading candidate source of FRBs3,4. Magnetars have surface magnetic fields in excess of 1014 gauss, the decay of which powers a range of high-energy phenomena5. Here we report observations of a millisecond-duration radio burst from the Galactic magnetar SGR 1935+2154, with a fluence of 1.5 ± 0.3 megajansky milliseconds. This event, FRB 200428 (ST 200428A), was detected on 28 April 2020 by the STARE2 radio array6 in the 1,281–1,468 megahertz band. The isotropic-equivalent energy released in FRB 200428 is 4 × 103 times greater than that of any radio pulse from the Crab pulsar—previously the source of the brightest Galactic radio bursts observed on similar timescales7. FRB 200428 is just 30 times less energetic than the weakest extragalactic FRB observed so far8, and is drawn from the same population as the observed FRB sample. The coincidence of FRB 200428 with an X-ray burst9–11 favours emission models that describe synchrotron masers or electromagnetic pulses powered by magnetar bursts and giant flares3,4,12,13. The discovery of FRB 200428 implies that active magnetars such as SGR 1935+2154 can produce FRBs at extragalactic distances. Observations of the fast radio burst FRB 200428 coinciding with X-rays from the Galactic magnetar SGR 1935+2154 indicate that active magnetars can produce fast radio bursts at extragalactic distances.read more
Citations
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Journal ArticleDOI
Emission Mechanisms of Fast Radio Bursts
TL;DR: In this paper, the basic physics of coherent emission mechanisms proposed for fast radio bursts are reviewed, including the curvature emission of bunches, the synchrotron maser, and the emission of radio waves by variable currents during magnetic reconnection.
Journal ArticleDOI
The evolution of binary neutron star post-merger remnants: a review
Nikhil Sarin,Paul D. Lasky +1 more
TL;DR: In this paper, the authors review what is known observationally and theoretically about binary neutron star post-merger remnants, including fluid, magnetic field, and temperature evolution from a theoretical perspective.
Journal ArticleDOI
Revisiting the Distance, Environment, and Supernova Properties of SNR G57.2+0.8 that Hosts SGR 1935+2154
TL;DR: In this article, a multi-wavelength study of supernova remnant (SNR) G57.2+0.8 and its environment was performed to constrain the physical parameters (e.g., the distance) of the SNR and its magnetar.
Journal ArticleDOI
On the energy and redshift distributions of fast radio bursts
TL;DR: In this paper, Monte Carlo simulations were used to constrain the intrinsic redshift distribution of fast radio bursts (FRBs) by comparing the results with the available FRB specific fluence distribution, dispersion measure (DM) distribution, and the estimated energy distribution data.
Journal ArticleDOI
HXMT Identification of a non-thermal X-ray burst from SGR J1935+2154 and with FRB 200428
C. K. Li,Lin Lin,Shaolin Xiong,Ming-Yu Ge,X. B. Li,Tong Li,F. J. Lu,S. N. Zhang,Y. L. Tuo,Y. Nang,Bing Zhang,S. Xiao,Y. B. Chen,Li-Ming Song,Y. P. Xu,C. Z. Liu,S. M. Jia,X. L. Cao,J. L. Qu,Songbo Zhang,Yu-Dong Gu,J. Y. Liao,Xin-Fu Zhao,Y. H. Tan,J. Y. Nie,H. S. Zhao,S. J. Zheng,Y. G. Zheng,Qiu-Yi Luo,C. Cai,Bo Li,W. C. Xue,Qingcui Bu,Z. Chang,Gang Chen,Tian-Xiang Chen,Y. B. Chen,Y. P. Chen,Wei Cui,Weiguang Cui,J. K. Deng,Yi-Qiao Dong,Yuan-Yuan Du,M. X. Fu,G. H. Gao,H. Gao,Min Gao,J. Guan,Cheng-Cheng Guo,Da-Wei Han,Ya Fang Huang,Jia Huo,Luhua Jiang,Wenhan Jiang,J. Jin,Y. J. Jin,L. D. Kong,Gang Li,Mao-Shun Li,Wenxiong Li,X. X. Li,Xuelong Li,Y. G. Li,Z. W. Li,X. H. Liang,B. S. Liu,GuoQing Liu,H. W. Liu,X. J. Liu,Yunchao Liu,B. Lu,Xue-Feng Lu,Tao Luo,X. H. Ma,Bin Meng,Ge Ou,N. Sai,R. C. Shang,X. Y. Song,L. Sun,Lian Tao,Cunguo Wang,G. F. Wang,J. Z. Wang,W. S. Wang,Y. S. Wang,XiangYang Wen,B. B. Wu,B. Y. Wu,M. Wu,G. C. Xiao,H. Xu,J. W. Yang,Sisi Yang,Y. J. Yang,Y. J. Yang,Qi-Bin Yi,Q. Q. Yin,Yuan You,Aimei Zhang,Chun-sheng Zhang,Fuqin Zhang,H. M. Zhang,J. Y. Zhang,T. Zhang,W. Zhang,W. C. Zhang,Wei Zhang,Y. Zhang,Yue Zhang,Y. F. Zhang,Y. J. Zhang,Z. P. Zhang,Zhi Zhang,Z. Zhang,D. K. Zhou,Jing Zhou,Yu-Xuan Zhu,Y. X. Zhu,R. L. Zhuang +119 more
TL;DR: In this paper, the authors reported the detection of a non-thermal X-ray burst in the 1-250 keV energy band with the Insight-HXMT satellite, which they identify as emitted from SGR J1935+2154.
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