RADIO SIGNATURES OF CORONAL-MASS-EJECTION-STREAMER INTERACTION AND SOURCE DIAGNOSTICS OF TYPE II RADIO BURST
文献类型：期刊论文
| 作者 | Feng, S. W.; Chen, Y.; Kong, X. L.; Li, G.; Song, H. Q.; Feng, X. S.; Liu, Ying |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2012 |
| 卷号 | 753期号:1页码:21 |
| ISSN号 | 0004-637X |
| 关键词 | shock waves Sun: corona Sun: coronal mass ejections (CMEs) Sun: radio radiation |
| 通讯作者 | Feng, SW (reprint author), Shandong Univ Weihai, Sch Space Sci & Phys, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Peoples R China. |
| 中文摘要 | It has been suggested that type II radio bursts are due to energetic electrons accelerated at coronal shocks. Radio observations, however, have poor or no spatial resolutions to pinpoint the exact acceleration locations of these electrons. In this paper, we discuss a promising approach to infer the electron acceleration location by combining radio and white light observations. The key assumption is to relate specific morphological features (e.g., spectral bumps) of the dynamic spectra of type II radio bursts to imaging features (e.g., coronal mass ejection (CME) going into a streamer) along the CME (and its driven shock) propagation. In this study, we examine the CME-streamer interaction for the solar eruption dated on 2003 November 1. The presence of spectral bump in the relevant type II radio burst is identified, which is interpreted as a natural result of the shock-radio-emitting region entering the dense streamer structure. The study is useful for further determinations of the location of type II radio burst and the associated electron acceleration by CME-driven shock. |
| 英文摘要 | It has been suggested that type II radio bursts are due to energetic electrons accelerated at coronal shocks. Radio observations, however, have poor or no spatial resolutions to pinpoint the exact acceleration locations of these electrons. In this paper, we discuss a promising approach to infer the electron acceleration location by combining radio and white light observations. The key assumption is to relate specific morphological features (e.g., spectral bumps) of the dynamic spectra of type II radio bursts to imaging features (e.g., coronal mass ejection (CME) going into a streamer) along the CME (and its driven shock) propagation. In this study, we examine the CME-streamer interaction for the solar eruption dated on 2003 November 1. The presence of spectral bump in the relevant type II radio burst is identified, which is interpreted as a natural result of the shock-radio-emitting region entering the dense streamer structure. The study is useful for further determinations of the location of type II radio burst and the associated electron acceleration by CME-driven shock. |
| 学科主题 | 空间物理 |
| 资助信息 | 973 program [2012CB825601]; NNSFC [40825014, 40890162, 41028004, 41104113]; Specialized Research Fund for State Key Laboratory of Space Weather in China; NSF CAREER [ATM-0847719]; NSF SHINE [AGS-0962658] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2014-12-15 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/3295]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Feng, S. W.,Chen, Y.,Kong, X. L.,et al. RADIO SIGNATURES OF CORONAL-MASS-EJECTION-STREAMER INTERACTION AND SOURCE DIAGNOSTICS OF TYPE II RADIO BURST[J]. ASTROPHYSICAL JOURNAL,2012,753(1):21. |
| APA | Feng, S. W..,Chen, Y..,Kong, X. L..,Li, G..,Song, H. Q..,...&Liu, Ying.(2012).RADIO SIGNATURES OF CORONAL-MASS-EJECTION-STREAMER INTERACTION AND SOURCE DIAGNOSTICS OF TYPE II RADIO BURST.ASTROPHYSICAL JOURNAL,753(1),21. |
| MLA | Feng, S. W.,et al."RADIO SIGNATURES OF CORONAL-MASS-EJECTION-STREAMER INTERACTION AND SOURCE DIAGNOSTICS OF TYPE II RADIO BURST".ASTROPHYSICAL JOURNAL 753.1(2012):21. |
入库方式： OAI收割
来源：国家空间科学中心
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