Spatial imaging of hydrogen Lyman-alpha emission from Jupiter
Feldman, P. D.; Moos, H. W.; Weaver, H. A.; Clarke, J. T.; Fastie, W. G.; Opal, C. B.
United States
Abstract
A sounding rocket measurement of the H I L-alpha emission from Jupiter made on Dec. 1, 1978 shows limb darkening and an average disk brightness of 13 kR. This brightness is significantly higher than in previous measurements, and was confirmed by an IUE observation on Dec. 10, 1978. Comparison with a plane-parallel hydrogen layer model indicates that there is enhanced emission from the equatorial regions, reaching a peak near 80 deg longitude.