1984年2月18日耀斑后环系的H_α轮廓不对称场和总辐射

Asymmetrical Field of the Hα Profile of the Post-Flare Loop System of 1984 February 18 and the Total Radiation

本文通过对1984年2月18日耀斑后环系的太阳分光照相光谱资料进行Hα谱线轮廓不对称因子和Hα总辐射量的计算,定量地给出了该环珥系的轮廓不对称场和Hα辐射分布,计算结果表明:1.环珥系大部份轮廓不对称因子|P|<0.5,说明整个环珥系的Hα谱线轮廓基本上是对称的或近似对称的。2.整个环珥系Hα谱线轮廓主要表观为紫不对称。3.具有红移视向速度的地方谱线轮廓都是紫不对称。4.采用不对称因子P进行谱线轮廓不对称计算,比传统的二等分法更优。5.该环珥系的总辐射能量级为10^(31)尔格。

From the calculations of the asymmetrical factors of the H* profile and the Ha total radiation of the post-flare loop system of 1984 February 18 carried out by means of the spectroheliographic spectral data of the system, the asymmetrical field of the profile and the distribution of the H* radiation of the loop prominence system arc quantatively given in this paper. The calculated results show that 1 ) the fact that the asymmetric factor P of mo t of the profile of the system is less than 0.5 indicates that the H* profile of the whole loop prominence system is basically or approximately asymmetrical, 2) the H* profile of the whole loop prominence system mainly shows up a the violet asymmetry, 3) the profile at the place where the matter, move at the visual velocity of red hift presents the violet a ymmetry, 4) the calculation of the profile asymmetry carried out by using the asymmtric factor P are better than those obtainsd by means of the tradifional bi cetion method and 5) the total radiation of the loop preminence system is 1031 erg.