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
  2. 国家天文台
  3. 中国科学院国家天文台
  4. 太阳物理研究部
A SOLAR FLARE DISTURBING A LIGHT WALL ABOVE A SUNSPOT LIGHT BRIDGE

文献类型：期刊论文

作者Hou, Yijun1,2; Zhang, Jun1,2; Li, Ting1,2; Yang, Shuhong1,2; Li, Leping1; Li, Xiaohong1,2
刊名ASTROPHYSICAL JOURNAL LETTERS
出版日期2016-10-01
卷号829期号:2
关键词sunspots Sun: activity Sun: atmosphere Sun: filaments, prominences Sun: flares
英文摘要With the high-resolution data from the Interface Region Imaging Spectrograph, we detect a light wall above a sunspot light bridge in the NOAA active region (AR) 12403. In the 1330 angstrom slit-jaw images, the light wall is brighter than the ambient areas while the wall top and base are much brighter than the wall body, and it keeps oscillating above the light bridge. A C8.0 flare caused by a filament activation occurred in this AR with the peak at 02: 52 UT on 2015 August 28, and the flare's one ribbon overlapped the light bridge, which was the observational base of the light wall. Consequently, the oscillation of the light wall was evidently disturbed. The mean projective oscillation amplitude of the light wall increased from 0.5 to 1.6 Mm before the flare and decreased to 0.6 Mm after the flare. We suggest that the light wall shares a group of magnetic field lines with the flare loops, which undergo a magnetic reconnection process, and they constitute a coupled system. When the magnetic field lines are pushed upward at the pre-flare stage, the light wall turns to the vertical direction, resulting in the increase of the light wall's projective oscillation amplitude. After the magnetic reconnection takes place, a group of new field lines with smaller scales are formed underneath the reconnection site, and the light wall inclines. Thus, the projective amplitude notably decrease at the post-flare stage.
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]REGION-IMAGING-SPECTROGRAPH ; SLIPPING MAGNETIC RECONNECTION ; DYNAMICS-OBSERVATORY SDO ; PLASMA EJECTIONS ; HIGH-RESOLUTION ; FLUX EMERGENCE ; FIELDS ; CORONA ; MODEL
收录类别SCI
语种英语
WOS记录号WOS:000385412300008
源URL[http://ir.bao.ac.cn/handle/114a11/6896]  
专题国家天文台_太阳物理研究部
作者单位1.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Hou, Yijun,Zhang, Jun,Li, Ting,et al. A SOLAR FLARE DISTURBING A LIGHT WALL ABOVE A SUNSPOT LIGHT BRIDGE[J]. ASTROPHYSICAL JOURNAL LETTERS,2016,829(2).
APA Hou, Yijun,Zhang, Jun,Li, Ting,Yang, Shuhong,Li, Leping,&Li, Xiaohong.(2016).A SOLAR FLARE DISTURBING A LIGHT WALL ABOVE A SUNSPOT LIGHT BRIDGE.ASTROPHYSICAL JOURNAL LETTERS,829(2).
MLA Hou, Yijun,et al."A SOLAR FLARE DISTURBING A LIGHT WALL ABOVE A SUNSPOT LIGHT BRIDGE".ASTROPHYSICAL JOURNAL LETTERS 829.2(2016).

入库方式： OAI收割

来源：国家天文台

浏览0
下载0
收藏0
其他版本

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。