Dr. Fegley and Dr. Lodders apply chemistry to key problems in astronomy, cosmochemistry, and planetary science.  Experimental studies and theoretical models are used to study a wide range of problems related to the chemistry taking place in these environments:

• atmospheres and circumstellar envelopes around cool stars
• brown dwarfs (so-called failed stars)
• extrasolar gas giant planets
• Jupiter's satellite Io
• meteorite parent bodies
• the gas giant planets Jupiter, Saturn, Neptune, Uranus
• the lower atmosphere and surface of Venus
• the solar nebula
• Titan, which is Saturn's largest satellite

A list of some of our ongoing and recent projects is given below.

• atmospheric chemistry of the brown dwarf Gliese 229 B
• formation of silicon carbide grains around red giant stars
• iron metal oxidation in the solar nebula
• the oxygen isotope mixing (OIM) model for the composition of Mars
• tremolite decomposition on Venus
• volcanic gas chemistry on Io