Bertaux J L, Goutail F, Kockarts G
Science. 1984 Jul 13;225(4658):174-6. doi: 10.1126/science.225.4658.174.
A spectrophotometer was flown on Spacelab 1 to study various mechanisms of Lyman-alpha emission in the upper atmosphere. The use of absorption cells filled with H(2) and D(2) gases allowed us to discriminate a number of weak Lyman-alpha emissions heretofore masked by the strong H geocoronal emission due to resonance scattering of solar photons. Preliminary results are presented on three topics: the first optical detection of the deuterium Lyman-alpha emission at 110 kilometers, with an intensity of 330 rayleighs indicating an eddy diffusion coefficient of 1.3 x 10(6) square centimeters per second; auroral proton precipitations seen on both the night and the day side; and an emission located above 250 kilometers of altitude, interpreted as the result of charge exchange of magnetospheric protons with geocoronal atoms.
一台分光光度计搭载在太空实验室1号上，用于研究高层大气中莱曼α发射的各种机制。使用充满H₂和D₂气体的吸收池，使我们能够区分一些迄今为止被太阳光子共振散射产生的强烈氢地冕发射所掩盖的微弱莱曼α发射。本文给出了三个主题的初步结果：在110公里处首次光学探测到氘莱曼α发射，强度为330瑞利，表明涡动扩散系数为1.3×10⁶平方厘米每秒；在夜侧和日侧都观测到极光质子沉降；以及在海拔250公里以上观测到的一种发射，被解释为磁层质子与地冕原子电荷交换的结果。
