AR5395:OBSERVATIONS ON THE ASYMMETRIES OF THE Hα AND CaⅡ K LINE PROFILES OF THE FLARES ON MARCH 9 AND 14,1989
AR5395:OBSERVATIONS ON THE ASYMMETRIES OF THE Hα AND CaⅡ K LINE PROFILES OF THE FLARES ON MARCH 9 AND 14,1989
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
出处
《天文研究与技术》
CSCD
1990年第4期38-41,共4页
Astronomical Research & Technology
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