Data analysis for the ultraviolet nitric oxide experiments on the
Atmosphere Explorers C and D
Theoretical modeling of atmospheres and the ionospheres of Venus, Earth,
Mars, Jupiter and comets including airglow, photoelectrons, energy balance, ion
chemistry, and ionosphere-magnetosphere interactions
Comparing results of ionospheric models with Pioneer Venus data
Solar wind interaction with non-magnetic planets including Venus, Mars,
Titan and comets and including MHD modeling
Data analysis of energetic particle and plasma data as Co-Investigator on
PLASMAG and TUNDE experiments on VEGA 1 and
2 spacecraft (comet Halley
encounter)
U.S. Co-Investigator on the HARP electron spectrometer experiment on the
Soviet Mars-Phobos Mission
Team Member on Cassini
Ion-Neutral Mass Spectrometer