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浏览/检索结果: 共67条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 A novel solar flare forecast model with deep convolution neural network and one-against-rest approach 期刊论文  OAI收割 ADVANCES IN SPACE RESEARCH, 2024, 卷号: 74, 期号: 7, 页码: 3467-3480 作者:  Zhang, Shunhuang;  Zheng, Yanfang;  Li, Xuebao;  Ye, Hongwei;  Dong L(董亮)   |  收藏  |  浏览/下载：11/0  |  提交时间：2024/09/18 Active regions  Magnetic fields  Solar flare prediction  Deep learning   Clusters of Solar Radio Spikes Modulated by Quasi-Periodic Pulsations in a Confined Flare 期刊论文  OAI收割 UNIVERSE, 2022, 卷号: 8, 期号: 7, 页码: 14 作者:  Huang, Jing;  Tan, Chengming;  Chen, Xingyao;  Tan, Baolin;  Yan, Yihua   |  收藏  |  浏览/下载：35/0  |  提交时间：2022/09/19 solar flare  solar radio burst  spike  quasi-periodic pulsation  particle acceleration   Characteristic time of stellar flares on Sun-like stars 期刊论文  OAI收割 MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2021, 卷号: 505, 期号: 1, 页码: L79-L83 作者:  Yan, Y.;  He, H.;  Li, C.;  Esamdin, A.;  Tan, B. L.   |  收藏  |  浏览/下载：47/0  |  提交时间：2022/03/20 stars: activity  stars: flare  stars: solar-type   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：24/0  |  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.   Non-LTE Calculations of the Mg i 12.32 μm Line in a Flaring Atmosphere 期刊论文  OAI收割 The Astrophysical Journal, 2020, 卷号: 898, 期号: 2 作者:  Hong,Jie;  Bai,Xianyong;  Li,Ying;  Ding,M. D.;  Deng,Yuanyong   |  收藏  |  浏览/下载：26/0  |  提交时间：2021/12/06 Solar chromosphere  Solar photosphere  Radiative transfer simulations  Solar flare spectra  Infrared astronomy   Imaging and Spectral Study on the Null Point of a Fan-spine Structure During a Solar Flare 期刊论文  OAI收割 The Astrophysical Journal, 2020, 卷号: 898, 期号: 2 作者:  Yang, Shuhong;  Zhang, Qingmin;  Xu Z(徐稚);  Zhang, Jun;  Zhong, Ze   |  收藏  |  浏览/下载：30/0  |  提交时间：2020/08/24 Solar magnetic reconnection  Solar activity  Solar flares  Solar ultraviolet emission  Solar magnetic fields  Solar chromosphere  Solar photosphere  Solar active regions  Solar corona  Solar filaments  Solar flare spectra   Imaging and Spectral Study on the Null Point of a Fan-spine Structure During a Solar Flare 期刊论文  OAI收割 The Astrophysical Journal, 2020, 卷号: 898, 期号: 2 作者:  Yang,Shuhong;  Zhang,Qingmin;  Xu,Zhi;  Zhang,Jun;  Zhong,Ze   |  收藏  |  浏览/下载：27/0  |  提交时间：2021/12/06 Solar magnetic reconnection  Solar activity  Solar flares  Solar ultraviolet emission  Solar magnetic fields  Solar chromosphere  Solar photosphere  Solar active regions  Solar corona  Solar filaments  Solar flare spectra   Equatorial Ionospheric Electrodynamics Over Jicamarca During the 6-11 September 2017 Space Weather Event 期刊论文  OAI收割 JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2019, 卷号: 124, 期号: 2, 页码: 1292-1306 作者:  Zhang, Ruilong;  Liu, Libo;  Le, Huijun;  Chen, Yiding   |  收藏  |  浏览/下载：58/0  |  提交时间：2019/04/22 ionospheric electric field  solar flare  geomagnetic storm  ionospheric current   Energy Build-up and Triggering Leading to a M1.5 Flare on 1 August 2014 期刊论文  OAI收割 SOLAR PHYSICS, 2018, 卷号: 293, 期号: 12, 页码: 15 作者:  Liu, S.;  Su, J. T.   |  收藏  |  浏览/下载：24/0  |  提交时间：2020/03/10 Magnetic field  Solar flare  Trigger  Magnetic emergence   Activity Analyses for Solar-type Stars Observed with Kepler. II. Magnetic Feature versus Flare Activity 期刊论文  OAI收割 The Astrophysical Journal Supplement Series, 2018, 卷号: 236, 期号: 1 作者:  He,Han;  Wang,Huaning;  Zhang,Mei;  Mehrabi,Ahmad;  Yan,Yan   |  收藏  |  浏览/下载：22/0  |  提交时间：2020/03/10 stars: activity  stars: flare  stars: magnetic field  stars: solar-type  starspots  Sun: activity