The Distances and Origins of the High Velocity Hydrogen Clouds

夏威夷大学的安托瓦内特博士和伦诺克斯考伊博士将 利用星际光谱线的观测来确定 到高速中性氢原子云的距离。 银河系的天空大约有10%被高 中性原子氢的速度云，但它们的起源和 20年来，地点一直难以捉摸。 无论如何 它们的起源，它们可能是一个非常有趣的 这一现象对我们理解星系 演化和星际物质能量平衡 介质 高速云缺少的关键是 知道他们的距离。 考伊夫妇的项目旨在 确定这些距离。

Drs. Antoinette and Lennox Cowie at the University of Hawaii will use observations of interstellar spectral lines to determine the distances to high velocity clouds of neutral atomic hydrogen gas. Approximately 10 percent of the Galactic sky is covered by high velocity clouds of neutral atomic hydrogen, but their origin and location has remained elusive for twenty years. No matter what their origin, they are potentially an extremely interesting phenomenon which may be important to our understanding of galaxy evolution and the energy and mass balance of the interstellar medium. The missing key to the high velocity clouds is a knowledge of their distances. The Cowies' project is aimed at determining those distances.