中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共10条，第1-10条 帮助

条数/页： 排序方式：
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：27/0  |  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.  
Quasi-periodic Pulsation Detected in Ly alpha Emission During Solar Flares 期刊论文  OAI收割
ASTROPHYSICAL JOURNAL, 2020, 卷号: 893, 期号: 1, 页码: 11
作者:  Li, Dong;  Lu, Lei;  Ning, Zongjun;  Feng, Li;  Gan, Weiqun
  |  收藏  |  浏览/下载：21/0  |  提交时间：2021/12/06
Quasi-periodic Pulsations of Gamma-Ray Emissions from a Solar Flare on 2017 September 6 期刊论文  OAI收割
The Astrophysical Journal, 2020, 卷号: 888, 期号: 2
作者:  Li,D.;  Kolotkov,D. Y.;  Nakariakov,V. M.;  Lu,L.;  Ning,Z. J.
  |  收藏  |  浏览/下载：47/0  |  提交时间：2020/03/19
On the motions of RHESSI flare footpoints 期刊论文  OAI收割
ADVANCES IN SPACE RESEARCH, 2008, 卷号: 41, 期号: 6, 页码: 908-913
作者:  Gan, W. Q.;  Li, Y. P.;  Miroshnichenko, L. I.
收藏  |  浏览/下载：18/0  |  提交时间：2011/12/29
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：41/0  |  提交时间：2014/04/30
The gyrosynchrotron radiation spectrum in a nonuniform source 期刊论文  OAI收割
CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS  , 2006, 卷号: 6, 期号: 2, 页码: 260-264
Zhou AH
收藏  |  浏览/下载：28/0  |  提交时间：2012/02/07
Energetic electrons in loop top and footpoint microwave sources 期刊论文  OAI收割
SOLAR PHYSICS, 2005, 卷号: 226, 期号: 2, 页码: 327-336
作者:  Zhou, AH;  Su, YN;  Huang, GL
收藏  |  浏览/下载：23/0  |  提交时间：2012/03/07
The soft X-ray coronal mass ejection above solar limb of 1998 April 23 期刊论文  OAI收割
CHINESE ASTRONOMY AND ASTROPHYSICS, 2002, 卷号: 26, 期号: 2, 页码: 172-182
作者:  Chen XJ(陈晓娟)
收藏  |  浏览/下载：18/0  |  提交时间：2016/03/30
An analysis of a solar active region that produced many CMEs 期刊论文  OAI收割
CHINESE ASTRONOMY AND ASTROPHYSICS, 2002, 卷号: 26, 期号: 2, 页码: 164-171
作者:  Xia ZG(夏志国);  Wang M(汪敏);  Zhang BR(张柏荣);  Yang, YH
收藏  |  浏览/下载：25/0  |  提交时间：2016/04/08
Magnetic reconnection observed in the pre-flare phase of AR 7186 of 1992 June 4 期刊论文  OAI收割
CHINESE ASTRONOMY AND ASTROPHYSICS, 2000, 卷号: 24, 期号: 1, 页码: 105-118
作者:  Zhang H(张衡);  Zhang, H
收藏  |  浏览/下载：13/0  |  提交时间：2016/03/30