机构

• 紫金山天文台 [6]
• 国家空间科学中心 [2]
• 高能物理研究所 [1]
• 新疆天文台 [1]

采集方式

• OAI收割 [10]

内容类型

• 期刊论文 [10]

发表日期

• 2022 [1]
• 2021 [1]
• 2019 [1]
• 2009 [1]
• 2008 [1]
• 2007 [1]
• 更多

学科主题

• Astronomy ... [5]
• Engineerin... [1]
• Engineerin... [1]
• Geology [1]
• Meteorolog... [1]
• 空间物理 [1]
• 更多

筛选

浏览/检索结果: 共10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 The Intrinsic Structure of Sagittarius A* at 1.3 cm and 7 mm 期刊论文  OAI收割 Astrophysical Journal, 2022, 卷号: 926, 期号: 2, 页码: 108 作者:  Cho, Ilje;  Zhao, Guang-Yao;  Kawashima, Tomohisa;  Kino, Motoki;  Akiyama, Kazunori   |  收藏  |  浏览/下载：14/0  |  提交时间：2023/06/19 magnetically arrested accretion  base-line interferometry  scatter-broadened image  supermassive black-hole  event-horizon  galactic-center  radio-source  vlbi observations  nonthermal electrons  synchrotron emission  Astronomy & Astrophysics   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 of cubic non-linearity-driven electrostatic structures in the presence of double spectral index distribution function 期刊论文  OAI收割 CONTRIBUTIONS TO PLASMA PHYSICS, 2019, 页码: UNSP e201900065 作者:  Qureshi, M. N. S.;  Shah, K. H.;  Shi, Jiankui;  Masood, W.;  Shah, H. A.   |  收藏  |  浏览/下载：31/0  |  提交时间：2019/12/17 (r  q) distribution  KdV equation  modified KdV  nonlinear ion acoustic waves  nonthermal electrons   Double hard X-ray peaks in RHESSI flares as evidence of chromospheric evaporation and implications for modifying the Neupert effect 期刊论文  OAI收割 RESEARCH IN ASTRONOMY AND ASTROPHYSICS  , 2009, 卷号: 9, 期号: 10, 页码: 1155-1164 Li You-Ping; Gan Wei-Qun; Su Yang 收藏  |  浏览/下载：15/0  |  提交时间：2011/12/08 SOLAR-FLARES  NONTHERMAL ELECTRONS  IMPULSIVE PHASE  TOTAL-ENERGY  LOOP  DISTRIBUTIONS  ENERGETICS  SPECTRA  EVENTS  MODEL   Diagnosis of coronal magnetic field and nonthermal electrons from Nobeyama observations of a simple flare 期刊论文  OAI收割 ADVANCES IN SPACE RESEARCH, 2008, 卷号: 41, 期号: 8, 页码: 1191-1194 作者:  Huang, G. L. 收藏  |  浏览/下载：12/0  |  提交时间：2011/12/30 solar radio  X-ray  coronal magnetic field  nonthermal electrons   SMESE: A SMall explorer for solar eruptions 期刊论文  OAI收割 Advances in Space Research, 2007, 卷号: 40, 期号: 12, 页码: 1787-1801 Vial, J. C.; Auchere, F.; Chang, J.; Fang, C.; Gan, W. Q.; Klein, K. L.; Prado, J. Y.; Trottet, G.; Wang, C.; Yan, Y. H. 收藏  |  浏览/下载：39/0  |  提交时间：2014/04/30 solar flares  coronal mass ejections  microsatellite  coronal mass ejections  energetic particle events  gamma-ray flare  hard x-ray  nonthermal electrons  continuum emission  alpha-line  flux  rope  eit waves  april 15   Calculations of coronal magnetic field parallel and perpendicular to line-of-sight in microwave bursts 期刊论文  OAI收割 SOLAR PHYSICS, 2006, 卷号: 237, 期号: 1, 页码: 173-183 作者:  Huang, Guangli 收藏  |  浏览/下载：11/0  |  提交时间：2012/02/07 SOLAR MICROWAVE  NONTHERMAL ELECTRONS  EMISSION  CUTOFF  ENERGY   The radio signature of twisted magnetic ropes and reconnection site in the low corona 期刊论文  OAI收割 SOLAR PHYSICS, 2003, 卷号: 213, 期号: 2, 页码: 341-358 作者:  Huang, GL;  Wu, HA;  Grechnev, VV;  Sych, RA;  Altyntsev, AT 收藏  |  浏览/下载：23/0  |  提交时间：2012/08/08 SOLAR MICROWAVE-BURSTS  FLUX ROPES  NONTHERMAL ELECTRONS  III BURSTS  EMISSION  FLARES  BAND  PULSATIONS  RADIATION  DENSITY   RHESSI observation of the M4.0 flare on 17 March 2002 期刊论文  OAI收割 ENERGY RELEASE AND PARTICLE ACCELERATION IN THE SOLAR ATMOSPHERE - FLARES AND RELATED PHENOMENA, 2003, 卷号: 32, 期号: 12, 页码: 2471-2476 作者:  Gan, WQ;  Li, YP;  Yu, XX;  Feng, L;  Dennis, BR 收藏  |  浏览/下载：27/0  |  提交时间：2012/08/08 SOLAR-FLARE  NONTHERMAL ELECTRONS  SPECTRA   An improved method to derive the lower energy cutoff of non-thermal electrons from hard X-rays of solar flares 期刊论文  OAI收割 SOLAR PHYSICS, 2002, 卷号: 207, 期号: 1, 页码: 137-147 作者:  Gan, WQ;  Li, YP;  Chang, J;  McTiernan, JM 收藏  |  浏览/下载：8/0  |  提交时间：2013/01/29 NONTHERMAL ELECTRONS  CHROMOSPHERIC CONDENSATION  SPECTRA  EMISSION  MODELS