Venkatakrishnan, P; Sakurai, T; Suematsu, Y; Ichimoto, K
(Astronomical Society of Japan, 1996)
A comparison of He{I} spectroheliograms and Yohkoh soft X-ray images of active regions indicates that He{I} absorption is enhanced at the feet of hot X-ray loops. It is suggested that the conduction of heat from the loops ...