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浏览/检索结果: 共11条，第1-10条 帮助

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Time-domain Modulation of HD 189733 Activities by Its Planet 期刊论文  OAI收割
The Astronomical Journal, 2021, 卷号: 161, 期号: 6
作者:  Gao,Yang
  |  收藏  |  浏览/下载：13/0  |  提交时间：2021/12/06
A ΔR ～ 9.5 mag Superflare of an Ultracool Star Detected by the SVOM/GWAC System 期刊论文  OAI收割
The Astrophysical Journal, 2021, 卷号: 909, 期号: 2
作者:  Xin,L. P.;  Li,H. L.;  Wang,J.;  Han,X. H.;  Xu,Y.
  |  收藏  |  浏览/下载：17/0  |  提交时间：2021/12/06
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：29/0  |  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.  
Flare Properties of A-type Stars in Kepler Data 期刊论文  OAI收割
ASTROPHYSICAL JOURNAL, 2020, 卷号: 905, 期号: 2, 页码: 110
作者:  Bai, Jian-Ying
  |  收藏  |  浏览/下载：21/0  |  提交时间：2021/04/01
Magnetic Flux of Active Regions Determining the Eruptive Character of Large Solar Flares 期刊论文  OAI收割
The Astrophysical Journal, 2020, 卷号: 900, 期号: 2
作者:  Li,Ting;  Hou,Yijun;  Yang,Shuhong;  Zhang,Jun;  Liu,Lijuan
  |  收藏  |  浏览/下载：22/0  |  提交时间：2021/12/06
Further Investigation on Chromospheric and Prominence Activity of the RS Canum Venaticorum Star SZ Piscium 期刊论文  OAI收割
The Astronomical Journal, 2020, 卷号: 159, 期号: 6, 页码: 15
作者:  Cao DT(曹东涛);  Gu SH(顾盛宏);  Wolter, U.
  |  收藏  |  浏览/下载：37/0  |  提交时间：2020/07/21
Exoplanets in the Antarctic Sky. III. Stellar Flares Found by AST3-II (CHESPA) within the Southern CVZ of TESS 期刊论文  OAI收割
ASTRONOMICAL JOURNAL, 2020, 卷号: 159, 期号: 5, 页码: 12
作者:  Liang, En-Si;  Zhang, Hui;  Yu, Zhouyi;  Yang, Ming;  Zhou, Ji-lin
  |  收藏  |  浏览/下载：49/0  |  提交时间：2021/12/06
Exoplanets in the Antarctic Sky. III. Stellar Flares Found by AST3-II (CHESPA) within the Southern CVZ of TESS 期刊论文  OAI收割
ASTRONOMICAL JOURNAL, 2020, 卷号: 159, 期号: 5, 页码: 12
作者:  Liang, En-Si;  Zhang, Hui;  Yu, Zhouyi;  Yang, Ming;  Zhou, Ji-lin
  |  收藏  |  浏览/下载：49/0  |  提交时间：2021/12/06
Observational Features of Exoplanetary Synchrotron Radio Bursts 期刊论文  OAI收割
ASTROPHYSICAL JOURNAL, 2020, 卷号: 895, 期号: 1, 页码: 7
作者:  Gao, Yang
  |  收藏  |  浏览/下载：24/0  |  提交时间：2021/12/06
M-dwarf Eclipsing Binaries with Flare Activity 期刊论文  OAI收割
ASTROPHYSICAL JOURNAL, 2020, 卷号: 892, 期号: 1, 页码: 11
作者:  Huang, L. -C.;  Ip, W. -H.;  Lin, C. -L.;  Zhang XL(张西亮);  Song, Y. -H.
  |  收藏  |  浏览/下载：75/0  |  提交时间：2020/05/18
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