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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  |  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
  |  收藏  |  浏览/下载:24/0  |  提交时间:2018/06/05
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
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
  |  收藏  |  浏览/下载:56/0  |  提交时间:2018/09/06
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
  |  收藏  |  浏览/下载:32/0  |  提交时间:2019/12/17
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
  |  收藏  |  浏览/下载:30/0  |  提交时间:2019/12/17
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
  |  收藏  |  浏览/下载:12/0  |  提交时间:2019/12/17