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Solar centimetric type N and type M bursts
Wang M(汪敏)1; Fu, Qijun2; Xie RX(谢瑞祥)1
会议录名称COSPAR COLLOQUIA SERIES - SOLAR-TERRESTRIAL MAGNETIC ACTIVITY AND SPACE ENVIRONMENT
2002
卷号14
页码183-188
DOI10.1016/S0964-2749(02)80154-8
会议录编者/会议主办者Wang, HN; Xu, RL
产权排序第1完成单位
收录类别CPCI
会议名称Colloquium on Solar-Terrestrial Magnetic Activity and Space Environment
会议日期2001-09-10
会议地点CHINESE ACAD SCI, NATL ASTRON OBSERV, BEIJING, PEOPLES R CHINA
会议赞助商COSPAR Chinese Natl Comm; Comm Space Res; Natl Nat Sci Fdn China; Minist Sci & Technol
关键词Sun : Solar Radio Fine Structures Centimetric Type n And m Bursts
摘要

Two special fine structures observed with the 5.2-7.6 GHz high temporal and spectral resolution spectrometer of National Astronomical Observatories of China (NAOC) are described and analyzed in this paper. Because they appear as the letters N and M on dynamic spectra, we call them centimetric type N and type M bursts, respectively. They have very short durations (about 500 ins and 300 ms), small flux densities (tens of SFU), narrow bandwidth (relative bandwidth about 10\%), and very small polarization degree (close to the accuracy limit of observation instruments), but each branch has considerable high frequency drift rates (several GHz/s). We think that they are an extension of metric or decimetric type U(N) bursts in centimetric wavelengths. Type N and type M bursts may be due to the mirroring effect near the foot point, as well as a scattering effect caused by whistler wave turbulence near the top of loop. They may also be interpreted by the quasi-periodic particle injection into coronal loops.

资助项目National NSF of China[19833050] ; National NSF of China[19833050] ; Chinese Academy of Sciences ; Ministry of Science and Techonology of China[G2000078403]
项目资助者National NSF of China ; Chinese Academy of Sciences ; Ministry of Science and Techonology of China
语种英语
学科领域天文学 ; 天体物理学 ; 射电天文学
学科门类理学 ; 理学::天文学
文章类型Proceedings Paper
出版者PERGAMON-ELSEVIER SCIENCE LTD
出版地THE BOULEVARD, LANGFORD LANE,, KIDLINGTON OX5 1GB, OXFORD, ENGLAND
ISBN号0-08-044110-6
URL查看原文
WOS记录号WOS:000181336400035
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
引用统计
文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5715
专题射电天文研究组
通讯作者Wang M(汪敏)
作者单位1.Yunnan Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Science, Kunming 650011, P.R.China
2.National Astronomical Observatories, Chinese Academy of Science, Beijing 100012 P.R.China
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GB/T 7714
Wang M,Fu, Qijun,Xie RX. Solar centimetric type N and type M bursts[C]//Wang, HN; Xu, RL. THE BOULEVARD, LANGFORD LANE,, KIDLINGTON OX5 1GB, OXFORD, ENGLAND:PERGAMON-ELSEVIER SCIENCE LTD,2002:183-188.
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