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科研机构
高能物理研究所 [268]
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期刊论文 [81]
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Detection of two bright radio bursts from magnetar SGR 1935 + 2154
期刊论文
Nature Astronomy, 2021, 卷号: 5, 页码: 414
作者:
Kirsten, F.
;
Snelders, M. P.
;
Jenkins, M.
;
Nimmo, K.
;
van den Eijnden, J.
收藏
  |  
浏览/下载:42/0
  |  
提交时间:2021/11/18
Astrophysics - High Energy Astrophysical Phenomena
Abstract: Fast radio bursts are millisecond-duration, bright radio signals (fluence 0.1-100 Jy ms) emitted from extragalactic sources of unknown physical origin. The recent CHIME/FRB and STARE2 detection of an extremely bright (fluence ~MJy ms) radio burst from the Galactic magnetar SGR 1935+2154 supports the hypothesis that (at least some) fast radio bursts are emitted by magnetars at cosmological distances. In follow-up observations totalling 522.7 h on source, we detect two bright radio bursts with fluences of 112 ± 22 Jy ms and 24 ± 5 Jy ms, respectively. Both bursts appear to be affected by interstellar scattering and we measure significant linear and circular polarization for the fainter burst. The bursts are separated in time by ~1.4 s, suggesting a non-Poissonian, clustered emission processsimilar to those seen in some repeating fast radio bursts. Together with the burst reported by CHIME/FRB and STARE2, as well as a much fainter burst seen by FAST (fluence 60 mJy ms), our observations demonstrate that SGR 1935+2154 can produce bursts with apparent energies spanning roughly seven orders of magnitude, and that the burst rate is comparable across this range. This raises the question of whether these four bursts arise from similar physical processes, and whether the fast radio burst population distribution extends to very low energies (~10
30
erg, isotropic equivalent).
Discovery of Transition from Marginally Stable Burning to Unstable Burning after a Superburst in Aql X-1
期刊论文
The Astrophysical Journal, 2021, 卷号: 920, 页码: 35
作者:
Li, Zhaosheng
;
Pan, Yuanyue
;
Falanga, Maurizio
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浏览/下载:9/0
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提交时间:2021/11/18
GRB 200716C: Evidence for a Short Burst Being Lensed
期刊论文
The Astrophysical Journal, 2021, 卷号: 918, 页码: L34
作者:
Wang, Yun
;
Jiang, Lu-Yao
;
Li, Cheng-Kui
;
Ren, Jia
;
Tang, Shao-Peng
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  |  
浏览/下载:7/0
  |  
提交时间:2021/11/18
New Insight into the Rapid Burster by Insight-HXMT
期刊论文
The Astrophysical Journal, 2021, 卷号: 913, 页码: 150
作者:
Chen, Y. P.
;
Zhang, S.
;
Zhang, S. N.
;
Ji, L.
;
Kong, L. D.
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  |  
浏览/下载:24/0
  |  
提交时间:2021/11/18
X-ray bursters
1813
Multiwavelength Observations of Fast Radio Bursts
期刊论文
Universe, 2021, 卷号: 7, 页码: 76
作者:
Nicastro, Luciano
;
Guidorzi, Cristiano
;
Palazzi, Eliana
;
Zampieri, Luca
;
Turatto, Massimo
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  |  
浏览/下载:24/0
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提交时间:2021/11/18
Gagarin-day GRB 200412B: observations with the 3.6m Devasthal Optical Telescope
GCN
2020
作者:
Kumar, Amit, Pandey, S. B
;
Aryan, Amar, Kumar, Brijesh, Misra, Kuntal
;
Collaboration
;
a larger GRB
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  |  
浏览/下载:38/0
  |  
提交时间:2020/05/20
Konus-Wind observation of GRB 200412B
GCN
2020
作者:
Ridnaia, A
;
Golenetskii, S
;
Aptekar, R
;
Frederiks, D
;
Ulanov, M
收藏
  |  
浏览/下载:47/0
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提交时间:2020/05/20
IceCube-200410A : Upper limits from Insight-HXMT/HE observations
GCN
2020
作者:
Zheng, Y. G
;
Cai, C
;
Du, Y. F
;
Xue, W. C
;
Luo, Q
收藏
  |  
浏览/下载:12/0
  |  
提交时间:2020/05/20
GRB 200412B: Insight-HXMT/HE detection
GCN
2020
作者:
Zheng, Y. G
;
Cai, C
;
Du, Y. F
;
Xue, W. C
;
Luo, Q
收藏
  |  
浏览/下载:11/0
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提交时间:2020/05/20
LIGO/Virgo S200316bj: Upper limits from Insight-HXMT/HE observations
GCN
2020
作者:
Cai, C
;
Xue, W. C
;
Zheng, Y. G
;
Luo, Q
;
Xiao, S
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2020/05/20
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