Observations by him and his colleagues at Mount Wilson and Palomar observatories revealed thousands of infrared sources in the sky, and afforded the first infrared view of the galactic center.
他和同事们在 威尔逊山 和帕洛马天文台的观测发现了天空中数以千计的红外源，并得到第一个银河系中心的红外影像。