中国科学院紫金山天文台机构知识库
Advanced  
PMO OpenIR  > 中国科学院紫金山天文台研究生部  > 学生文章
题名: Spectroscopic Observations of Magnetic Reconnection and Chromospheric Evaporation in an X-shaped Solar Flare
作者: Li, Y.; Kelly, M.; Ding, M. D.; Qiu, J.; Zhu, X. S.; Gan, W. Q.
刊名: ASTROPHYSICAL JOURNAL
出版日期: 2017
卷号: 848, 期号:2, 页码:118-
英文摘要: We present observations of distinct UV spectral properties at different locations during an atypical X-shaped flare (SOL2014-11-09T15:32) observed by the Interface Region Imaging Spectrograph (IRIS). In this flare, four chromospheric ribbons appear and converge at an X-point where a separator is anchored. Above the X-point, two sets of non-coplanar coronal loops approach laterally and reconnect at the separator. The IRIS. slit was located close to the X-point, cutting across some of the flare ribbons and loops. Near the location of the separator, the Si IV 1402.77 angstrom line exhibits significantly broadened line wings extending to 200 km s(-1) with an unshifted line core. These spectral features suggest the presence of bidirectional flows possibly related to the separator reconnection. While at the flare ribbons, the hot Fe XXI 1354.08 angstrom line shows blueshifts and the cool Si IV 1402.77 angstrom, C II 1335.71 angstrom, and Mg II 2803.52 angstrom lines show evident redshifts up to a velocity of 80 km s(-1), which are consistent with the scenario of chromospheric evaporation/condensation.
语种: 英语
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/17558
Appears in Collections:中国科学院紫金山天文台研究生部_学生文章

Files in This Item:
File Name/ File Size Content Type Version Access License
2017195.pdf(5370KB)期刊论文作者接受稿限制开放 联系获取全文
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Li, Y.]'s Articles
[Kelly, M.]'s Articles
[Ding, M. D.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Li, Y.]‘s Articles
[Kelly, M.]‘s Articles
[Ding, M. D.]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院紫金山天文台 - Feedback
Powered by CSpace