Publication Date:
2011-08-19
Description:
The intensity peak at 4.8 microns characterizing the spectrum observed for the disk of Uranus near 5 microns, in June 1987, exhibits steep declines at shorter and longer wavelength. An exploratory discussion is presented of various models in view of these data; it is noted that some component of the radiation must originate near the 140 K atmospheric irrespective of the radiation's origin in sunlight or thermal emission; physical considerations dictate that it be at least partly thermal in origin. One model consistent with the data requires the presence of a cloud top at the 8-bar level.
Keywords:
LUNAR AND PLANETARY EXPLORATION
Type:
Icarus (ISSN 0019-1035); 77; 109-117
Format:
text
Permalink