摘要
本文介绍了暗条、耀斑、后环等各种客体通常使用的速度测量方法.采用简单模型,计算运动客体的理论光谱轮廓,从而对现有测定方法的可靠性作了讨论.指出如使用方法不当,所测得的速度不仅量值上与真实情况相差甚远,而且测得的运动方向亦可与实际相反.
A variety of methods for velocity measurement .in filaments, flares, post-flare loops and oilier objects in the active regions are reviewed. The reliability of all these methods is discussed on the basis of the theoretical profiles calculated by using a simple model. It is concluded that when an unfit method is used, not only would the order of magnitude of Doppler shift in a line profiled be unreliable, but also the sign of Doppler shift would be opposite to the real one.
