IO TORUS EUV EMISSIONS DURING THE COMET SHOEMAKER-LEVY 9 IMPACTS/

Extreme Ultraviolet Explorer satellite observations of Jupiter's Io pl asma torus conducted over a two-year time period before, during and af ter the impacts of comet Shoemaker-Levy/9 reveal that no new spectral features appeared in the 400-715 Angstrom spectral region. Io torus em ission line luminosities remained stable to within +/- 20% and showed no strong coherent increasing or decreasing trend during the weeks pre ceding or following the impact events. This work supersedes our previo us claims of possible luminosity changes to the torus derived from the same data (McGrath et al., Science, 267, 1313, 1995).