中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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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.  
有孔虫之美学——大自然中的艺术 期刊论文  OAI收割
大自然, 2013, 期号: 5, 页码: 1
郑守仪
收藏  |  浏览/下载:25/0  |  提交时间:2014/07/28
不同长度β_2整合素_M亚基与ICAM-1的亲和性比较 期刊论文  OAI收割
医用生物力学, 2009, 卷号: 24, 期号: 增刊1, 页码: 151
作者:  
吕守芹;  龚一心;  毛德斌;  李宁;  龙勉
收藏  |  浏览/下载:1037/113  |  提交时间:2010/05/03
激光医学发展中的问题与对策——记“青年科学家论坛”第68次活动 期刊论文  OAI收割
中国激光医学杂志, 2002, 期号: 04, 页码: 6-13
顾瑛; 骆清铭; 曹健林
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/11
对预防和控制水产养殖中传染性疾病的关键性问题的认识 期刊论文  OAI收割
中国水产, 1997, 期号: 1, 页码: 32-33
宋怀龙
收藏  |  浏览/下载:11/0  |  提交时间:2013/10/08
关于全程发展中国海洋生物技术刍议 期刊论文  OAI收割
海洋科学, 1995, 期号: 6, 页码: 27-31
陆迅生; 杨鸣; 刘建国; 杨俊杰; 刘来臣; 曲广富; 殷丽
收藏  |  浏览/下载:23/0  |  提交时间:2013/10/08
黄东海陆架沉积环境研究中值得重新思考的问题 期刊论文  OAI收割
海洋科学, 1995, 期号: 4, 页码: 55-57
赵松龄
收藏  |  浏览/下载:13/0  |  提交时间:2013/10/08
实空间高分辨象模拟计算中的动态收敛判据 期刊论文  OAI收割
物理学报, 1993, 期号: 2, 页码: 277-282
朱仕学,王元明,王少青,阎德勤,金志雄
收藏  |  浏览/下载:94/0  |  提交时间:2012/04/12
有机涂层表面真空镀铝的研究 期刊论文  OAI收割
真空科学与技术, 1990, 期号: 2, 页码: 115-118
韩耀文,吴克胜
收藏  |  浏览/下载:32/0  |  提交时间:2012/04/12
离子探针—能量过滤法精确测定锇铱矿粒中Os同位素丰度比 期刊论文  OAI收割
质谱学报, 1988, 期号: 2, 页码: 31-35
邹军军; 陈廉; 李裕光
收藏  |  浏览/下载:15/0  |  提交时间:2012/04/12