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Analysis of Jovian Auroral H Ly-α Emission (1981-1991)

Ballester, Gilda E.; McGrath, Melissa A.; Clarke, John T. +1 more

We present a new analysis of jovian auroral IUE spectra covering the period from 1981 to 1991. To extract integrated auroral H Ly-α emission from these spectra we have developed a new extraction method that bins signal with wavelength while preserving the spatial information provided by the IUE imaging spectrograph. This separates auroral emission…

Compositional Mapping of Jupiter's Satellite Io Utilizing High Speed Multifilter Photometry during Mutual Satellite Occultations, 1990-1991

Lane, Arthur L.; Nelson, Robert M.; Hapke, Bruce W. +4 more

We observed selected mutual occultations of Jupiter's satellites in 1990-1991 at four wavelengths and we used the occultation profiles to constrain the areal distribution of selected spectrally active compounds on Io's surface. We performed high speed photometry of Io at four wavelengths while it was being occulted by another Galilean satellite. T…