PMO OpenIR  > 太阳和太阳系等离子体研究团组
A study of line widths and kinetic parameters of ions in the solar corona
Zhao, G. Q.1,2; Wu, D. J.1; Wang, C. B.3
2014-10-01
Source PublicationASTROPHYSICS AND SPACE SCIENCE
ISSN0004-640X
Volume353Issue:2Pages:373-378
AbstractSolar extreme-ultraviolet (EUV) lines emitted by highly charged ions have been extensively studied to discuss the issue of coronal heating and solar wind acceleration. Based on observations of the polar corona by the SUMER/SOHO spectrometer, this paper investigates the relation between the line widths and kinetic parameters of ions. It is shown that there exists a strongly linear correlation between two variables (sigma/lambda)(2) and M (-1), where sigma, lambda and M are the half-width of the observed line profile at , the wavelength and the ion mass, respectively. The Pearson product-moment correlation coefficients exceed 0.9. This finding tends to suggest that the ions from a given height of polar corona have a common temperature and a common non-thermal velocity in terms of existing equation. The temperature and non-thermal velocity are obtained by linear least-square fit. The temperature is around 2.8 MK at heights of 57aEuro(3) and 102aEuro(3). The non-thermal velocity is typical 21.6 km s(-1) at height of 57aEuro(3) and 25.2 km s(-1) at height of 102aEuro(3).
KeywordSun: Corona Sun: Uv Radiation Sun: Fundamental Parameters
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s10509-014-2072-y
WOS KeywordR-CIRCLE-DOT ; ALFVEN WAVES ; IONIZATION EQUILIBRIUM ; NONTHERMAL VELOCITY ; SUMER TELESCOPE ; TRANSITION ZONE ; EMISSION-LINES ; QUIET-SUN ; LIMB ; HOLES
URL查看原文
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000342146300008
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/10636
Collection太阳和太阳系等离子体研究团组
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Geospace Environm, Hefei 230026, Peoples R China
Recommended Citation
GB/T 7714
Zhao, G. Q.,Wu, D. J.,Wang, C. B.. A study of line widths and kinetic parameters of ions in the solar corona[J]. ASTROPHYSICS AND SPACE SCIENCE,2014,353(2):373-378.
APA Zhao, G. Q.,Wu, D. J.,&Wang, C. B..(2014).A study of line widths and kinetic parameters of ions in the solar corona.ASTROPHYSICS AND SPACE SCIENCE,353(2),373-378.
MLA Zhao, G. Q.,et al."A study of line widths and kinetic parameters of ions in the solar corona".ASTROPHYSICS AND SPACE SCIENCE 353.2(2014):373-378.
Files in This Item:
File Name/Size DocType Version Access License
2014009A study of li(339KB) 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
[Zhao, G. Q.]'s Articles
[Wu, D. J.]'s Articles
[Wang, C. B.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhao, G. Q.]'s Articles
[Wu, D. J.]'s Articles
[Wang, C. B.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhao, G. Q.]'s Articles
[Wu, D. J.]'s Articles
[Wang, C. B.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2014009A study of line widths and kinetic parameters of ions in the solar corona.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.