Sulfur chemistry in the atmospheres of warm and hot Jupiters

We present and validate a new network of atmospheric thermo-chemical photo-chemical sulfur reactions. use 1-D chemical kinetics model to investigate these reactions as part broader HCNO in series hot warm Jupiters. find that temperatures approaching $1400\,\mathrm{K}$ are favourable for the production H2S HS around $\mathrm{10^{-3}\,bar}$, level where detection by transit spectroscopy may be possible, leading mixing ratios $10^{-6}$. At lower temperatures, down $1000\,\mathrm{K}$, abundance S2 can up ratio $10^{-5}$ at same pressure, expense HS, which depleted also how inclusion manifest an atmosphere indirectly, its effect on non-sulfur-bearing species. HD 209458 b, NH3, CH4 HCN two orders magnitude $\mathrm{10^{-3}\,bar}$. In Jupiter 51 Eri we additionally sulphur depletes peak CO2 factor five, qualitatively consistent with prior models. note many used have poorly determined rates, especially higher temperatures. To obtain truly accurate idea impact chemistry atmospheres, measurements reaction rates must take place.