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浏览/检索结果: 共92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 HF-VHF dual-channel multifunctional radio astronomy terminal system 期刊论文  OAI收割 Astronomical Techniques and Instruments/天文技术与仪器(英文), 2024, 卷号: 1, 期号: 02, 页码: 140-149 作者:  Liu, Kaijing;  Dong L(董亮);  Xie, Huanhuan;  Li, Baoxin;  Zhou, Jingzhi   |  收藏  |  浏览/下载：4/0  |  提交时间：2024/12/20 HF-VHF  Solar radio  High-speed acquisition  Frequency domain analysis  Time-domain recording.   A novel short-term radio flux trend prediction model based on deep learning 期刊论文  OAI收割 ASTROPHYSICS AND SPACE SCIENCE, 2023, 卷号: 368, 期号: 10 作者:  Zheng, Yanfang;  Ling, Yi;  Li, Xuebao   |  收藏  |  浏览/下载：12/0  |  提交时间：2024/03/29 Sun  Solar activity  Solar radio flux   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：36/0  |  提交时间：2022/09/19 solar flare  solar radio burst  spike  quasi-periodic pulsation  particle acceleration   Predicting the Daily 10.7-cm Solar Radio Flux Using the Long Short-Term Memory Method 期刊论文  OAI收割 UNIVERSE, 2022, 卷号: 8, 期号: 1 作者:  Zhang, Wanting;  Zhao, Xinhua;  Feng, Xueshang;  Liu, Cheng’ao;  Xiang NB(向南彬)   |  收藏  |  浏览/下载：63/0  |  提交时间：2022/03/01 solar radio flux  time series forecast  long short-term memory   Statistics of Low Frequency Cutoffs for Type III Radio Bursts Observed by Parker Solar Probe during Its Encounters 1–5 期刊论文  OAI收割 The Astrophysical Journal Letters, 2021, 卷号: 913, 期号: 1 作者:  Ma,Bing;  Chen,Ling;  Wu,Dejin;  Bale,Stuart D.   |  收藏  |  浏览/下载：18/0  |  提交时间：2021/12/06 Interplanetary physics  Solar radio emission   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.   Subsecond Time Evolution of Type III Solar Radio Burst Sources at Fundamental and Harmonic Frequencies 期刊论文  OAI收割 The Astrophysical Journal, 2020, 卷号: 905, 期号: 1 作者:  Chen,Xingyao;  Kontar,Eduard P.;  Chrysaphi,Nicolina;  Jeffrey,Natasha L. S.;  Gordovskyy,Mykola   |  收藏  |  浏览/下载：24/0  |  提交时间：2021/12/06 Solar radio emission  Interplanetary turbulence  Radio bursts  Solar radio flares   Real-time temperature estimation method for electromagnetic performance improvement of a large axisymmetric radio telescope under solar radiation 期刊论文  OAI收割 Iet Microwaves Antennas & Propagation, 2020, 卷号: 14, 期号: 13, 页码: 1635-1642 作者:  Lian, Peiyuan;  Wang, Congsi;  Xu, Qian;  Xiang, Binbin;  Shi, Yu   |  收藏  |  浏览/下载：43/0  |  提交时间：2021/06/25 radiotelescopes  temperature sensors  reflector antennas  solar  radiation  temperature database  table look-up method  temperature field  estimation speed  real-time estimated temperature field  temperature  sensors  real-time compensation  axisymmetric telescopes  time  temperature estimation method  electromagnetic performance improvement  axisymmetric radio telescope  solar radiation  electromagnetic  performances  EM performance improvements  temperature simulation  fast  estimation method  transient temperature field simulation  high-frequency radio telescopes  large-aperture radio telescopes  reflector antenna  reflector antennas  surface error  adjustment  pattern  field  Engineering  Telecommunications   Observations of a Quasi-periodic Pulsation in the Coronal Loop and Microwave Flux during a Solar Preflare Phase 期刊论文  OAI收割 ASTROPHYSICAL JOURNAL LETTERS, 2020, 卷号: 893, 期号: 1, 页码: 6 作者:  Li Dong;  Li Ying   |  收藏  |  浏览/下载：13/0  |  提交时间：2021/12/06 Solar flares  Solar oscillations  Solar ultraviolet emission  Solar radio emission   Observations of a Quasi-periodic Pulsation in the Coronal Loop and Microwave Flux during a Solar Preflare Phase 期刊论文  OAI收割 ASTROPHYSICAL JOURNAL LETTERS, 2020, 卷号: 893, 期号: 1, 页码: 6 作者:  Li Dong;  Li Ying;  Lu Lei;  Zhang Qingmin;  Ning Zongjun   |  收藏  |  浏览/下载：10/0  |  提交时间：2021/12/06 Solar flares  Solar oscillations  Solar ultraviolet emission  Solar radio emission