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高能物理研究所 [1859]
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期刊论文 [1859]
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内容类型:期刊论文
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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.
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浏览/下载:42/0
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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).
Relation of Cyclotron Resonant Energy and Luminosity in a Strongly Magnetized Neutron Star GRO J1008-57 Observed by Insight-HXMT
期刊论文
The Astrophysical Journal, 2021, 卷号: 919, 页码: 33
作者:
Chen, X.
;
Wang, W.
;
Tang, Y. M.
;
Ding, Y. Z.
;
Tuo, Y. L.
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浏览/下载:7/0
  |  
提交时间:2021/11/18
Neutron stars
X-ray binary stars
1108
1811
Accretion torque reversals in GRO J1008-57 revealed by Insight-HXMT
期刊论文
Journal of High Energy Astrophysics, 2021, 卷号: 30, 页码: 1
作者:
Wang, W.
;
Tang, Y. M.
;
Tuo, Y. L.
;
Epili, P. R.
;
Zhang, S. N.
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浏览/下载:18/0
  |  
提交时间:2021/11/18
Insight-HXMT Firm Detection of the Highest-energy Fundamental Cyclotron Resonance Scattering Feature in the Spectrum of GRO J1008-57
期刊论文
ASTROPHYSICAL JOURNAL LETTERS, 2020, 卷号: 899, 期号: 1, 页码: L19
作者:
Ge, M. Y.
;
Ji, L.
;
Zhang, S. N.
;
Santangelo, A.
;
Liu, C. Z.
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  |  
浏览/下载:15/0
  |  
提交时间:2020/10/19
High mass x-ray binary stars
Pulsars
Magnetic fields
Physical design of multipurpose physics neutron diffractometer for the csns
期刊论文
Nuclear instruments & methods in physics research section a-accelerators spectrometers detectors and associated equipment, 2019, 卷号: 927, 页码: 161-168
作者:
Xu, Juping
;
Mei, Longwei
;
Yin, Wen
;
Wang, Xunli
;
Cai, Weiliang
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  |  
浏览/下载:67/0
  |  
提交时间:2019/04/22
Neutron diffraction
Total-scattering instrumentation
Mcstas
Neutron optics
Physical design of multipurpose physics neutron diffractometer for the csns
期刊论文
Nuclear instruments & methods in physics research section a-accelerators spectrometers detectors and associated equipment, 2019, 卷号: 927, 页码: 161-168
作者:
Xu, Juping
;
Mei, Longwei
;
Yin, Wen
;
Wang, Xunli
;
Cai, Weiliang
收藏
  |  
浏览/下载:67/0
  |  
提交时间:2019/04/22
Neutron diffraction
Total-scattering instrumentation
Mcstas
Neutron optics
Long-term evolutions of the cyclotron line energies in her x-1, vela x-1, and cen x-3 as observed with swift/bat
期刊论文
Monthly notices of the royal astronomical society, 2019, 卷号: 484, 期号: 3, 页码: 3797-3805
作者:
Ji, L.
;
Staubert, R.
;
Ducci, L.
;
Santangelo, A.
;
Zhang, S.
收藏
  |  
浏览/下载:64/0
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提交时间:2019/04/22
Radiation mechanisms: thermal
Scattering
Stars: magnetic field
Stars: neutron
X-rays: binaries
X-rays: individual: her x-1, vela x-1, cen x-3
Long-term evolutions of the cyclotron line energies in her x-1, vela x-1, and cen x-3 as observed with swift/bat
期刊论文
Monthly notices of the royal astronomical society, 2019, 卷号: 484, 期号: 3, 页码: 3797-3805
作者:
Ji, L.
;
Staubert, R.
;
Ducci, L.
;
Santangelo, A.
;
Zhang, S.
收藏
  |  
浏览/下载:64/0
  |  
提交时间:2019/04/22
Radiation mechanisms: thermal
Scattering
Stars: magnetic field
Stars: neutron
X-rays: binaries
X-rays: individual: her x-1, vela x-1, cen x-3
Search for a w boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
期刊论文
Journal of high energy physics, 2019, 期号: 3, 页码: 40
作者:
Sirunyan, A. M.
;
Tumasyan, A.
;
Adam, W.
;
Ambrogi, F.
;
Asilar, E.
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  |  
浏览/下载:205/0
  |  
提交时间:2019/04/22
Beyond standard model
Hadron-hadron scattering (experiments)
Vectorlike quarks
Search for a w boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
期刊论文
Journal of high energy physics, 2019, 期号: 3, 页码: 40
作者:
Sirunyan, A. M.
;
Tumasyan, A.
;
Adam, W.
;
Ambrogi, F.
;
Asilar, E.
收藏
  |  
浏览/下载:205/0
  |  
提交时间:2019/04/22
Beyond standard model
Hadron-hadron scattering (experiments)
Vectorlike quarks
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