中国科学院紫金山天文台机构知识库
Advanced  
PMO OpenIR  > 期刊(老文献)  > 期刊论文
题名: Generation Mechanisms of Quasi-parallel and Quasi-circular Flare Ribbons in a Confined Flare
作者: Hernandez-Perez, Aaron; Thalmann, Julia K.; Veronig, Astrid M.; Su, Yang; Gomory, Peter; Dickson, Ewan C.
刊名: ASTROPHYSICAL JOURNAL
出版日期: 2017
卷号: 847, 期号:2, 页码:124
DOI: 10.3847/1538-4357/aa8814
英文摘要: We analyze a confined multiple-ribbon M2.1 flare (SOL2015-01-29T11:42) that originated from a fan-spine coronal magnetic field configuration, within active region NOAA 12268. The observed ribbons form in two steps. First, two primary ribbons form at the main flare site, followed by the formation of secondary ribbons at remote locations. We observe a number of plasma flows at extreme-ultraviolet temperatures during the early phase of the flare (as early as 15 minutes before the onset) propagating toward the formation site of the secondary ribbons. The secondary ribbon formation is co-temporal with the arrival of the pre-flare generated plasma flows. The primary ribbons are co-spatial with Ramaty High Energy Spectroscopic Imager (RHESSI) hard X-ray sources, whereas no enhanced X-ray emission is detected at the secondary ribbon sites. The (E)UV emission, associated with the secondary ribbons, peaks similar to 1 minute after the last RHESSI hard X-ray enhancement. A nonlinear force-free model of the coronal magnetic field reveals that the secondary flare ribbons are not directly connected to the primary ribbons, but to regions nearby. Detailed analysis suggests that the secondary brightenings are produced due to dissipation of kinetic energy of the plasma flows (heating due to compression), and not due to non-thermal particles accelerated by magnetic reconnection, as is the case for the primary ribbons.
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/17907
Appears in Collections:期刊(老文献)_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
2017244.pdf(5146KB)期刊论文作者接受稿限制开放View 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
[Hernandez-Perez, Aaron]'s Articles
[Thalmann, Julia K.]'s Articles
[Veronig, Astrid M.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Hernandez-Perez, Aaron]‘s Articles
[Thalmann, Julia K.]‘s Articles
[Veronig, Astrid M.]‘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
文件名: 2017244.pdf
格式: Adobe PDF
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 © 2007-2018  中国科学院紫金山天文台 - Feedback
Powered by CSpace