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上海应用物理研究所 [12]
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Detection of Flare Multiperiodic Pulsations in Mid-ultraviolet Balmer Continuum, Lyl Hard X-Ray, and Radio Emissions Simultaneously
期刊论文
OAI收割
The Astrophysical Journal, 2021, 卷号: 921, 页码: 179
作者:
HXMT
  |  
收藏
  |  
浏览/下载:25/0
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提交时间:2022/02/08
Solar flares
Solar oscillations
Solar ultraviolet emission
Solar
x-ray emission
Solar radio emission
1496
1515
1533
1536
1522
Astrophysics - Solar and Stellar Astrophysics
Abstract: Quasi-periodic pulsations (QPPs), which usually appear as temporal pulsations of the total flux, are frequently detected in the light curves of solar/stellar flares. In this study, we present the investigation of nonstationary QPPs with multiple periods during the impulsive phase of a powerful flare on 2017 September 6, which were simultaneously measured by the Hard X-ray Modulation Telescope (Insight-HXMT), as well as the ground-based BLENSW. The multiple periods, detected by applying a wavelet transform and Lomb-Scargle periodogram to the detrended light curves, are found to be ~20-55 s in the Ly`and mid-ultraviolet Balmer continuum emissions during the flare impulsive phase. Similar QPPs with multiple periods are also found in the hard X-ray emission and low-frequency radio emission. Our observations suggest that the flare QPPs could be related to nonthermal electrons accelerated by the repeated energy release process, i.e., triggering of repetitive magnetic reconnection, while the multiple periods might be modulated by the sausage oscillation of hot plasma loops. For the multiperiodic pulsations, other generation mechanisms could not be completely ruled out.
Investigation on tensile deformation behavior of compacted graphite iron based on cohesive damage model
期刊论文
OAI收割
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2018, 卷号: 713, 页码: 260-268
作者:
Zhang, YY
;
Pang, JC
;
Shen, RL
;
Qiu, Y
;
Li, SX
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收藏
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浏览/下载:24/0
  |  
提交时间:2018/06/05
Representative Volume Element
Fiber-reinforced Composites
3d Woven Composites
Strength Cast-iron
X-ray Tomography
Mechanical-properties
Thermal-conductivity
Quantitative Description
Heterogeneous Materials
Automatic-generation
Attosecond light sources in the water window
期刊论文
iSwitch采集
Journal of optics, 2018, 卷号: 20, 期号: 2
作者:
Ren,Xiaoming
;
Li,Jie
;
Yin,Yanchun
;
Zhao,Kun
;
Chew,Andrew
收藏
  |  
浏览/下载:78/0
  |  
提交时间:2019/05/09
High harmonic generation
Attosecond laser
Water window x-ray
Attosecond laser characterization
Sharing of Na+ by Three -COO- Groups at Deprotonated Carboxyl-Terminated Self-Assembled Monolayer-Charged Aqueous Interface
期刊论文
OAI收割
JOURNAL OF PHYSICAL CHEMISTRY C, 2018, 卷号: 122, 期号: 16, 页码: 9111-9116
作者:
Liu, X
;
Huang, G
;
Hu, KK
;
Sheng, N
;
Tian, CS
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收藏
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浏览/下载:56/0
  |  
提交时间:2018/09/06
Sum-frequency Generation
Space Gaussian Pseudopotentials
Molecular-dynamics Simulation
X-ray-absorption
Hofmeister Series
Water Orientation
Spectroscopy
Ion
Potentials
Binding
Review of fully coherent free-electron lasers
期刊论文
OAI收割
NUCLEAR SCIENCE AND TECHNIQUES, 2018, 卷号: 29, 期号: 11, 页码: -
作者:
Feng, C
;
Deng, HX
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收藏
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浏览/下载:32/0
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提交时间:2019/12/17
GAIN HARMONIC-GENERATION
SOFT-X-RAY
EXTREME-ULTRAVIOLET
SASE-FEL
PULSES
BANDWIDTH
OPERATION
POLARIZATION
UNDULATORS
FACILITY
Molten-salt synthesis of porous La0.6Sr0.4CO0.2Fe0.8O2.9 perovskite as an efficient electrocataiyst for oxygen evolution
期刊论文
OAI收割
NANO RESEARCH, 2018, 卷号: 11, 期号: 9, 页码: 4796-4805
作者:
Song, SZ
;
Zhou, J
;
Zhang, S
;
Zhang, LJ
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收藏
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浏览/下载:30/0
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提交时间:2019/12/17
SPIN-STATE TRANSITION
X-RAY-ABSORPTION
OXIDE FUEL-CELLS
WATER OXIDATION
ALKALINE-SOLUTION
REDUCTION
CATALYSTS
NANOSTRUCTURES
CHALLENGES
GENERATION
Atomic inner-shell radiation seeded free-electron lasers
期刊论文
OAI收割
PHYSICAL REVIEW ACCELERATORS AND BEAMS, 2018, 卷号: 21, 期号: 7, 页码: -
作者:
Zhang, H
;
Li, K
;
Yan, JW
;
Deng, HX
;
Sun, BY
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收藏
  |  
浏览/下载:12/0
  |  
提交时间:2019/12/17
X-RAY LASERS
GENERATION
COHERENT
XFEL
UV