PMO OpenIR  > 太阳活动的多波段观测研究团组
Bi-directional flows in a C-class solar flare
Ning, Zongjun1,2
2016
发表期刊ASTROPHYSICS AND SPACE SCIENCE
卷号361期号:1
摘要We have explored the bi-directional flows in a C-class solar flare observed by Solar Dynamic Observatory Atmospheric Imaging Assembly (SDO/AIA) on 2012 December 26. This event occurs in a curved magnetic loop connecting a pair of negative and positive fields. The Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) observations show a X-ray source in 3-25 keV stayed at the loop top during the flare. High-cadence AIA observations exhibit many flows movement intermittently along the flare loop. In order to analyze these flows, firstly, the event is cut along the loop direction with a curved slit which is wide enough to include the bulk of ultraviolet (UV) and X-ray emissions. Secondly, after integration the flux along the slit width, we get the space-time slices at 9 AIA wavelengths and in RHESSI 3-25 keV. Thirdly, the derivative is done on the space-time slices. Many bi-directional flows are identified as the oblique streaks on the intensity-gradient space-time slices during the flare lifetime. They almost start from the same position near the loop top, where the X-ray emission is bright in 3-25 keV. Then they move toward the positive and the negative polarity footpoints simultaneously. Their average speed is directly measured about 230 km s(-1), and they exhibit a typical quasi-period of about 3 minutes. The characteristics of these flows, such as bi-directional, simultaneous, symmetrical and quasi-periodic, are the observational constraints for acceleration theories.
文章类型Article
关键词Sun Flares And Sun Uv Radiation And Sun X-ray Bursts Hard
WOS标题词Science & Technology ; Physical Sciences
DOI10.1007/s10509-015-2606-y
关键词[WOS]2003 NOVEMBER 3 ; X-RAY SOURCES ; MAGNETIC RECONNECTION ; PARTICLE-ACCELERATION ; ELECTRON-BEAMS ; CORONAL HARD ; RHESSI ; LOOP ; RADIO ; PHASE
收录类别SCI
语种英语
项目资助者973 project(2011CB811400 ; (11333009) ; (11573072) ; (2010DP173032) ; 2014CB744200)
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000367516500022
引用统计
文献类型期刊论文
条目标识符http://libir.pmo.ac.cn/handle/332002/16100
专题太阳活动的多波段观测研究团组
作者单位1.Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China
2.Nanjing Univ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714
Ning, Zongjun. Bi-directional flows in a C-class solar flare[J]. ASTROPHYSICS AND SPACE SCIENCE,2016,361(1).
APA Ning, Zongjun.(2016).Bi-directional flows in a C-class solar flare.ASTROPHYSICS AND SPACE SCIENCE,361(1).
MLA Ning, Zongjun."Bi-directional flows in a C-class solar flare".ASTROPHYSICS AND SPACE SCIENCE 361.1(2016).
条目包含的文件 下载所有文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
2016034.pdf(4614KB) 开放获取Apache License浏览 下载
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Ning, Zongjun]的文章
百度学术
百度学术中相似的文章
[Ning, Zongjun]的文章
必应学术
必应学术中相似的文章
[Ning, Zongjun]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 2016034.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。