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1972年8月太阳活动区的米波特征

Meter Wavelength Characteristics of a Solar Active Region in August 1972

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【作者】 李小聪孙九祯李运阳尹其丰刘绪昭

【Author】 Teacher Ying Chi-feng, Worker-peasant-soldier Students Li Hsiao-chun Sun Chiu-cheng Li Yuan-yang Speciality of Astronomy, Department of Geophysics, Peking University. Liu Xu-zhao, Peking Observatory, Academia Sinica

【机构】 北京大学地球物理系北京天文台 天文专业工农兵学员天文专业工农兵学员天文专业工农兵学员 教员

【摘要】 <正> 1972年8月,在日面上出现了一个质子耀斑活动区,北京天文台黑子编号为1972年238号(Mc Math 11976活动区)。在这个活动区过日面期间,产生了一系列大耀斑,其中有四个质子耀斑,分别发生在8月2日、2日、4日和7日,见表1。由于我国所处的地理经度的原因,我国观测到其中的两个质子耀斑。伴随质子耀斑产生了很强的射电爆发。这些质子耀微喷出了大量的高能粒子,发出了强烈的X射线及紫外线等。这些高能粒子辐射和电磁波辐射引起了一系列空间物理和地球物理效应。在近地空间测到了很强的质子流,按斯马

【Abstract】 Some results of measurements made in August 1972 of the solar radio bursts and the Type-I source associated with the active region 238 (McMath 11976) have been obtained at Mi-Yun station, Peking Observatory (working frequency 146 MHz).We describe in the first part of this paper the observations of radio bursts of 146 MHz in the period of the active region moving across the solar disk.In the second part of this paper the results of measurements are analyzed and compared with the associated S-components in centimeter wavelengths. It is found that the daily variations of the l’ype-I source are correlated with those of the S-components with 2-days time-delay. This evolutionary relation could be a result of emergence of some non-potential magnetic fields imbeded in slowly moving(1 km/s.) elctronic plasma clouds.From measurements of the angular extend of the Type-I source, strengths of the background magnetic fields are estimated.

  • 【文献出处】 北京大学学报(自然科学版) ,Acta Scicentiarum Naturalum Universitis Pekinesis , 编辑部邮箱 ,1977年01期
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