NSSC OpenIR  > 空间科学部
DIAGNOSTICS ON THE SOURCE PROPERTIES OF A TYPE II RADIO BURST WITH SPECTRAL BUMPS
Feng, S. W.; Chen, Y.; Kong, X. L.; Li, G.; Song, H. Q.; Feng, X. S.; Guo, Fan; Feng, SW (reprint author), Shandong Univ, Inst Space Sci, Weihai 264209, Peoples R China.
Department空间科学部
Source PublicationASTROPHYSICAL JOURNAL
2013
Volume767Issue:1Pages:29
ISSN0004-637X
Language英语
KeywordShock Waves Sun: Corona Sun: Coronal Mass Ejections (Cmes) Sun: Radio Radiation
AbstractIn recent studies, we proposed that source properties of type II radio bursts can be inferred through a causal relationship between the special shape of the type II dynamic spectrum (e. g., bump or break) and simultaneous extreme ultraviolet (EUV)/white light imaging observations (e. g., CME-shock crossing streamer structures). As a further extension of these studies, in this paper we examine the coronal mass ejection (CME) event on 2007 December 31 associated with a multiple type II radio burst. We identify the presence of two spectral bump features on the observed dynamic spectrum. By combining observational analyses of the radio spectral observations and the EUV-white light imaging data, we conclude that the two spectral bumps result from a CME-shock propagating across dense streamers on the southern and northern sides of the CME. It is inferred that the corresponding two type II emissions originate separately from the two CME-shock flanks where the shock geometries are likely quasi-perpendicular or oblique. Since the emission lanes are bumped as a whole within a relatively short time, it suggests that the type II radio bursts with bumps of this study are emitted from spatially confined sources (with a projected lateral dimension smaller than 0.05-0.1 R-circle dot at a fundamental frequency level of 20-30 MHz).
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/4989
Collection空间科学部
Corresponding AuthorFeng, SW (reprint author), Shandong Univ, Inst Space Sci, Weihai 264209, Peoples R China.
Recommended Citation
GB/T 7714
Feng, S. W.,Chen, Y.,Kong, X. L.,et al. DIAGNOSTICS ON THE SOURCE PROPERTIES OF A TYPE II RADIO BURST WITH SPECTRAL BUMPS[J]. ASTROPHYSICAL JOURNAL,2013,767(1):29.
APA Feng, S. W..,Chen, Y..,Kong, X. L..,Li, G..,Song, H. Q..,...&Feng, SW .(2013).DIAGNOSTICS ON THE SOURCE PROPERTIES OF A TYPE II RADIO BURST WITH SPECTRAL BUMPS.ASTROPHYSICAL JOURNAL,767(1),29.
MLA Feng, S. W.,et al."DIAGNOSTICS ON THE SOURCE PROPERTIES OF A TYPE II RADIO BURST WITH SPECTRAL BUMPS".ASTROPHYSICAL JOURNAL 767.1(2013):29.
Files in This Item: Download All
File Name/Size DocType Version Access License
2013767129.pdf(2393KB) 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Feng, S. W.]'s Articles
[Chen, Y.]'s Articles
[Kong, X. L.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Feng, S. W.]'s Articles
[Chen, Y.]'s Articles
[Kong, X. L.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Feng, S. W.]'s Articles
[Chen, Y.]'s Articles
[Kong, X. L.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2013767129.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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