摘要
本文根据１９８０年２月１６日的８．６毫米波长射电日食观测资料，计算了太阳射电辐射的亮度温度的径向分布．由日食过程的第一、第二和第三接触的计算结果表明，在日面光学边缘内侧的二角分范围内，均存在明显的单峰状增亮结构．三个接触的平均增亮峰值约为１８％，增亮区的射电辐射占日面总辐射的４％．日食当天在８．６毫米波段上测得的日面平均亮度温度为９７２７Ｋ．
In this paper the radial distribution of the solar radio brightness temperature at 8.6mm wavelength is calculated, based on the total eclipse observation on Feb.16, 1980. The results obtained by the first, second and third contacts show that there is an evident brightening structure with a single spike in the 2' range on the inner side of the optical limb. The average brightening value is about 18% of the central brightness temperature. Radiation from the brightening region is about 4% of total radiation from the solar disk. The average brightness temperature is 9727°K at 8.6mm wavelength on Feb. 16, 1980.
出处
《天文学报》
CSCD
北大核心
1994年第2期195-203,共9页
Acta Astronomica Sinica
关键词
太阳射电
亮度
温度
分布
Eclipse observation
Radio brightness temperature distribution
