Aerosols and hydrocarbons in the atmosphere of a white dwarf planet
Data reduction Our PRISM observation used 33 groups across 240 integrations, with each integration lasting 29.8 s, for a total observing time of 1.98 h. Although the transit duration of WD 1856 b only lasts 8 min, we selected this observing window to ensure JWST captured a transit of WD 1856 b with sufficient out-of-transit baseline for detector settling. We used two … Read more