No pulsed radio emission during a bursting phase of a Galactic magnetar.
L. Lin,Chao Zhang,Chao Zhang,Pengfei Wang,H. Gao,X. Guan,J. L. Han,J. C. Jiang,J. C. Jiang,Peng Jiang,Kejia Lee,Kejia Lee,Di Li,Y. P. Men,Y. P. Men,C. C. Miao,C. H. Niu,J. R. Niu,Chenghua Sun,Boyuan Wang,Boyuan Wang,Zhong Lin Wang,Huibin Xu,Huibin Xu,Ji-Jing Xu,Jiejia Xu,Jiejia Xu,Yi Yang,Yujin Yang,Wenjing Yu,Bing Zhang,Bin-Bin Zhang,Bin-Bin Zhang,D. J. Zhou,Weiwei Zhu,A. J. Castro-Tirado,A. J. Castro-Tirado,Z. G. Dai,M. Y. Ge,Y. D. Hu,Y. D. Hu,Canyang Li,Yingfeng Li,Zhanqing Li,E. W. Liang,S. M. Jia,Richard Querel,L. Shao,Fa-Yin Wang,X. G. Wang,Xue-Feng Wu,S. L. Xiong,Renxin Xu,Y.-S. Yang,G. Q. Zhang,Shoudu Zhang,T. C. Zheng,J.-H. Zou +57 more
TLDR
In this paper, an 8-hour radio observational campaign of the Galactic magnetar SGR 1935+2154, assisted by multi-wavelength data, indicates that associations between fast radio bursts and soft γ-ray bursts are rare.Abstract:
Fast radio bursts (FRBs) are millisecond-duration radio transients of unknown physical origin observed at extragalactic distances1–3. It has long been speculated that magnetars are the engine powering repeating bursts from FRB sources4–13, but no convincing evidence has been collected so far14. Recently, the Galactic magnetar SRG 1935+2154 entered an active phase by emitting intense soft γ-ray bursts15. One FRB-like event with two peaks (FRB 200428) and a luminosity slightly lower than the faintest extragalactic FRBs was detected from the source, in association with a soft γ-ray/hard-X-ray flare18–21. Here we report an eight-hour targeted radio observational campaign comprising four sessions and assisted by multi-wavelength (optical and hard-X-ray) data. During the third session, 29 soft-γ-ray repeater (SGR) bursts were detected in γ-ray energies. Throughout the observing period, we detected no single dispersed pulsed emission coincident with the arrivals of SGR bursts, but unfortunately we were not observing when the FRB was detected. The non-detection places a fluence upper limit that is eight orders of magnitude lower than the fluence of FRB 200428. Our results suggest that FRB–SGR burst associations are rare. FRBs may be highly relativistic and geometrically beamed, or FRB-like events associated with SGR bursts may have narrow spectra and characteristic frequencies outside the observed band. It is also possible that the physical conditions required to achieve coherent radiation in SGR bursts are difficult to satisfy, and that only under extreme conditions could an FRB be associated with an SGR burst. An 8-hour radio observational campaign of the Galactic magnetar SGR 1935+2154, assisted by multi-wavelength data, indicates that associations between fast radio bursts and soft γ-ray bursts are rare.read more
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Journal ArticleDOI
A unified picture of Galactic and cosmological fast radio bursts
Wenbin Lu,Pawan Kumar,Bing Zhang +2 more
TL;DR: In this paper, it was shown that the volumetric rate of fast radio burst (FRB) like events is consistent with the faint end of the cosmological FRB rate, and hence they most likely belong to the same class of transients.
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,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,Y. G. Zheng,Qiu-Yi Luo,C. Cai,Bo Li,W. C. Xue,Qingcui Bu,Qingcui Bu,Z. Chang,Gang Chen,L. 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,Lei 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,Qi-Bin Yi,Q. Q. Yin,Yuan You,Aimei Zhang,Chun-sheng Zhang,Fuqin Zhang,H. M. Zhang,Junqiang Zhang,T. Zhang,W. C. Zhang,Wan-Chang Zhang,W. Z. Zhang,Y. Zhang,Yue Zhang,Y. F. Zhang,Y. J. Zhang,Z. Zhang,Zhi Zhang,Z. L. Zhang,D. K. Zhou,J. F. Zhou,Yu-Xuan Zhu,Y. X. Zhu,Y. X. Zhu,R. L. Zhuang +125 more
TL;DR: In this article, 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 having been emitted from SGR J1935+2154.
Journal ArticleDOI
The Physical Mechanisms of Fast Radio Bursts.
TL;DR: The recent detection of a Galactic fast radio burst in association with a soft gamma-ray repeater suggests that magnetar engines can produce at least some, and probably all, fast radio bursts.
Journal ArticleDOI
A peculiar hard X-ray counterpart of a Galactic fast radio burst
A. Ridnaia,Dmitry S. Svinkin,D. D. Frederiks,Andrei M. Bykov,Sergei Popov,Sergei Popov,R. L. Aptekar,S. V. Golenetskii,A. Lysenko,A. Tsvetkova,M. Ulanov,T. L. Cline +11 more
TL;DR: In this paper, the authors reported the detection with Konus-Wind of a hard X-ray event of 28 April 2020 temporally coincident with a bright, two-peak radio burst in the direction of the Galactic magnetar SGR 1935+2154, with properties remarkably similar to those of FRBs.
Journal ArticleDOI
A peculiar hard X-ray counterpart of a Galactic fast radio burst
A. Ridnaia,Dmitry S. Svinkin,D. D. Frederiks,Andrei M. Bykov,Sergei Popov,Sergei Popov,R. L. Aptekar,S. V. Golenetskii,A. Lysenko,A. Tsvetkova,M. Ulanov,T. L. Cline +11 more
TL;DR: In this paper, the Konus-Wind detector was used to detect a hard X-ray event of April 28, 2020, temporarily coincident with a bright, two-peak radio burst with properties remarkably similar to those of fast radio bursts.
References
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TL;DR: In this article, the authors present a cosmological analysis based on full-mission Planck observations of temperature and polarization anisotropies of the cosmic microwave background (CMB) radiation.
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TL;DR: In this paper, the authors present results based on full-mission Planck observations of temperature and polarization anisotropies of the CMB, which are consistent with the six-parameter inflationary LCDM cosmology.
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The Luminosity function and stellar evolution
TL;DR: In this paper, the evolutionary significance of the observed luminosity function for main-sequence stars in the solar neighborhood is discussed and it is shown that stars move off the main sequence after burning about 10 per cent of their hydrogen mass and that stars have been created at a uniform rate in a solar neighborhood for the last five billion years.
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A Bright Millisecond Radio Burst of Extragalactic Origin
TL;DR: A 30-jansky dispersed burst, less than 5 milliseconds in duration, located 3° from the Small Magellanic Cloud is found, which implies that it was a singular event such as a supernova or coalescence of relativistic objects.
Journal ArticleDOI
The five-hundred-meter aperture spherical radio telescope (fast) project
Rendong Nan,Di Li,Di Li,Chengjin Jin,Wang Qiming,Lichun Zhu,Wenbai Zhu,Haiyan Zhang,Youling Yue,Lei Qian +9 more
TL;DR: Wang et al. as discussed by the authors proposed the Five Hundred Meter Aperture Spherical Radio Telescope (FAST) to build the largest single-dish radio telescope in the world.
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