PMO OpenIR  > PMO中文期刊
一个矮耀斑环产生的脉冲性热X射线辐射
Alternative TitleImpulsive Thermal X-Ray Emission from a Low-lying Coronal Loop
liusiming
2013
Source PublicationASTROPHYSICAL JOURNAL
Volume769Issue:2Pages:135(1-10)
Other AbstractUnderstanding the relationship among different emission components plays an essential role in the study of particle acceleration and energy conversion in solar flares. In flares where gradual and impulsive emission components can be readily identified, the impulsive emission has been attributed to non-thermal particles. We carry out detailed analysis of Hα and X-ray observations of a GOES class B microflare loop on the solar disk. The impulsive hard X-ray emission, however, is found to be consistent with a hot, quasi-thermal origin, and there is little evidence of emission from chromospheric footpoints, which challenges conventional models of flares and reveals a class of microflares associated with dense loops. Hα observations indicate that the loop lies very low in the solar corona or even in the chromosphere and both emission and absorption materials evolve during the flare. The enhanced Hα emission may very well originate from the photosphere when the low-lying flare loop heats up the underlying chromosphere and reduces the corresponding Hα opacity. These observations may be compared with detailed modeling of flare loops with the internal kink instability, where the mode remains confined in space without apparent change in the global field shape, to uncover the underlying physical processes and to probe the structure of solar atmosphere.
Subject Area天文和天体物理
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/10082
CollectionPMO中文期刊
Corresponding Authorliusiming
Recommended Citation
GB/T 7714
liusiming. 一个矮耀斑环产生的脉冲性热X射线辐射[J]. ASTROPHYSICAL JOURNAL,2013,769(2):135(1-10).
APA liusiming.(2013).一个矮耀斑环产生的脉冲性热X射线辐射.ASTROPHYSICAL JOURNAL,769(2),135(1-10).
MLA liusiming."一个矮耀斑环产生的脉冲性热X射线辐射".ASTROPHYSICAL JOURNAL 769.2(2013):135(1-10).
Files in This Item:
File Name/Size DocType Version Access License
一个矮耀斑环产生的脉冲性热X射线辐射.p(797KB) 开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[liusiming]'s Articles
Baidu academic
Similar articles in Baidu academic
[liusiming]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[liusiming]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 一个矮耀斑环产生的脉冲性热X射线辐射.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

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