【摘要】 <正> 1959年7月10日在太阳日面經度λ=327.5°日面緯度φ=18°处爆发了一个特級大耀斑,这个耀斑从发生起到消失几乎延續了四个小时之多,我們对这个大耀斑作了光譜的观測,本文就是介紹对在耀斑极強期間获得的光譜資料所作的分析,分析的目的在于通过理論輪廓的比較确定在耀斑中可能存在的物理状态。更多还原

【Abstract】 The H_a spectrogram of a III+ flare of July 10. 1959 obtained at the Purple Mountain Observatory was investigated. Profiles of different parts of the Rare were measured by microphotometcr MΦ-4. They are listed in fig 2 （a-f）. The theoretical contour was calculated by standard procedure, taking Doppler-stark effect as the broadening mechanism. The best fit of the observed and theoretical contour was reached at Te=10000°K, Pe=50-100 bars and N₂=10¹⁶. The physical parameters Te, Pe obtained agree with those of Kasachevskaja and Severny. N₂ is about ten times as large. This is evident because of the very strong outburst involved.更多还原