Jupiter's Polar Regions in the Ultraviolet as Imaged by HST/WFPC2: Auroral-Aligned Features and Zonal Motions

Models for Polar Haze Formation in Jupiter's Stratosphere

“…Pryor and Hord (1991) found a geographical correlation between the auroral zones and UV-dark haze in the polar regions, providing additional evidence that haze production is linked to auroral energy deposition. This result has been confirmed by Vincent et al (2000), who also observed transient aerosol features aligned with the auroral oval. Pryor and Hord (1991) proposed a sequence of ion-neutral reactions leading to the formation of heavy hydrocarbon ions that might serve as the precursors to carbonaceous aerosols.…”

Jupiter's atmospheric temperatures: From Voyager IRIS to Cassini CIRS

“…Although IRIS stratosphere retrievals were not possible at these high latitudes, CIRS retrievals show evidence of winds at even higher altitude, up to -1 mbar. Studies of ultraviolet Hubble Space Telescope data have also found indications of motion in the polar stratosphere (Vincent et al 2000). The polar vortices implied by these results can have significant dynamical and compositional ramifications, as they do in Earth's polar atmosphere.…”

A pulsating auroral X-ray hot spot on Jupiter

“…We note that this same hot-spot region is the site of enhanced infrared emissions from CH 4 8 , and a`dark spot' in the sunlight re¯ected from Jupiter at mid-ultraviolet wavelengths 12 .…”