西南交通大学学报(英文版)2004,Vol.12Issue(1):42-45,4.
Radio Fiber Fine Structure During the Solar Flare on July 14,2000
Radio Fiber Fine Structure During the Solar Flare on July 14,2000
摘要
Abstract
On July 14, 2000, a type IV solar radio burst was observed at 10:43-11:00 UT with the 1-2 GHz digital spectrometer of National Astronomical Observatories of China (NAOC). Many fiber fine structures superposed on the type IV burst were detected in the same interval. A theoretical interpretation for the fibers is performed based upon a model of magnetic-mirror loop configuration in the solar corona. In this model, the source of the fiber emission is considered as the ducting of whistler solitons within the magnetic-mirror loop. A quantitative estimation using the observed data indicats that the magnetic field strength of the radio source is about 1.451×10-2≤B0≤2.734×10-2 T, and that a fiber is composed of 4×1015 solitons occupying a volume of about 1.2×108 km3. For the duct through which the whistler solitons passed within the magnetic-mirror loop, its diameter and the length are worked out, namely, d≈120 km and Δr≈104 km, respectively.关键词
Solar flare/Radio burst/Fiber structuresKey words
Solar flare/Radio burst/Fiber structures分类
信息技术与安全科学引用本文复制引用
钟晓春,王蜀娟..Radio Fiber Fine Structure During the Solar Flare on July 14,2000[J].西南交通大学学报(英文版),2004,12(1):42-45,4.基金项目
The National Science Foundation of China and the Chinese Academy of Sciences(No.19973008) and the Ministry of Science and Technology of China (No.G 2000078403). (No.19973008)