Proposed Measurements of Photoabsorption Cross Sections of Solar System and Cosmic Gases Under In-Situ Conditions

Drs。南加州大学的吴和贾奇将对存在于行星大气、彗星和星际云中的气体分子成分进行实验室测量。特别是，这些研究人员将在模拟现实行星条件的实验室条件下测量碳氢化合物分子、磷化氢、氨和其他物质的吸收截面。目前，关于分子参数的现有实验室数据与关于存在于行星大气中的分子的观测数据之间存在着差距。缺乏实验室数据严重妨碍了对观测结果的解释。这些测量是由dr。Wu和Judge将帮助弥补实验室数据的不足。

Drs. Wu and Judge at the University of Southern California will perform laboratory measurements on the molecular constituents of gases which are present in atmospheres of planets, in comets, and in interstellar clouds. In particular, these researchers will measure absorption cross sections of hydrocarbon molecules, phosphine, ammonia, and others under laboratory conditions which simulate realistic planetary conditions. There is currently a gap between available laboratory data on molecular parameters and observational data on those molecules which are present in the atmospheres of planets. The lack of the laboratory data is seriously hampering the interpretation of the observations. The measurements which are being performed by Drs. Wu and Judge will help remedy the deficiency of laboratory data.