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30条，第1-10条 帮助

条数/页： 排序方式：
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
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：23/0  |  提交时间：2021/12/06
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：13/0  |  提交时间：2021/12/06
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
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
A self-consistent mechanism for electron cyclotron maser emission and its application to type III solar radio bursts 期刊论文  OAI收割
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2017, 卷号: 122, 期号: 1, 页码: 35-49
作者:  Chen, L.;  Wu, D. J.;  Zhao, G. Q.;  Tang, J. F.
  |  收藏  |  浏览/下载：25/0  |  提交时间：2019/04/08
A self-consistent mechanism for electron cyclotron maser emission and its application to type III solar radio bursts 期刊论文  OAI收割
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2017, 卷号: 122, 期号: 1, 页码: 35-49
作者:  Chen, L.;  Wu, D. J.;  Zhao, G. Q.;  Tang, J. F.
收藏  |  浏览/下载：29/0  |  提交时间：2017/05/03
STEREO-Wind Radio Positioning of an Unusually Slow Drifting Event 期刊论文  OAI收割
SOLAR PHYSICS, 2015, 卷号: 290, 期号: 3, 页码: 891-901
作者:  Martinez-Oliveros, J. C.;  Raftery, C.;  Bain, H.;  Liu, Y.;  Pulupa, M.
收藏  |  浏览/下载：20/0  |  提交时间：2015/09/28
The importance of source positions during radio fine structure observations 期刊论文  OAI收割
RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2014, 卷号: 14, 期号: 7, 页码: 831-842
作者:  Chernov, Guennadi P.;  Yan, Yi-Hua;  Fu, Qi-Jun
收藏  |  浏览/下载：21/0  |  提交时间：2016/12/01