AR5395:OBSERVATIONS ON THE ASYMMETRIES OF THE Hα AND CaⅡ K LINE PROFILES OF THE FLARES ON MARCH 9 AND 14,1989

查看全文 作　　者：Fang Cheng, Hu Ju, Ji Guoping, Yin Suying, Zhang QizhouDepartment of Astronomy, Nanjing University 出　　处：《天文研究与技术》索引1990年第4期,共4页 摘　　要：The most powerful method to diagnose the velocity field in solar flare atmosphere isspectral analyses. That is to analyse the asymmetry and the Doppler shift of flare spectralline profiles. Recent observations indicated that at the impulsive phase of flares thereare obvious red asymmetry of Hα profiles and a downward velocity of 40-100km/s 关 键 词：asymmetry impulsive POWERFUL DOWNWARD AND CA 亡弓 Figure OBSERVATIONAL kernel tower