POST-SL9 SULFUR PHOTOCHEMISTRY ON JUPITER

We have modeled the photochemical evolution of the sulfur-containing s pecies that were observed in Jupiter's stratosphere after the SL9 impa cts. We find that most of the sulfur is converted to S-8 in the first few days. Other important sulfur reservoirs are CS, whose abundance in creases markedly with time, and possibly H2CS, HNCS, and NS, whose abu ndances depend on kinetic reaction rates that are unknown at the prese nt. We discuss the temporal variation of the major sulfur compounds, m ake abundance and compositional predictions useful for comparisons wit h observations, and discuss the possible condensation of sulfur-contai ning species.