helium rain
(possible source of heat in giant planet atmospheres)
Helium rain is considered as something that might occur deep within
the thick atmospheres of giant planets such as Saturn
and Jupiter. Saturn is warmer than can easily be explained from
incoming solar EM radiation, radioactivity, and residual heat.
It is thought the otherwise-unexplained energy might be
gravitational potential energy released from falling droplets of condensed
helium within Saturn's atmosphere.
(atmosphere,helium,giant planets)
Further reading:
https://en.wikipedia.org/wiki/Gas_giant#Helium_rain_on_Saturn_and_Jupiter
https://en.wikipedia.org/wiki/Atmosphere_of_Jupiter#Chemical_composition
https://www.space.com/8084-jupiter-helium-rain-study-suggests.html
https://www.llnl.gov/article/47631/experiments-validate-possibility-helium-rain-inside-jupiter-saturn
https://ui.adsabs.harvard.edu/abs/2016JGRE..121.1552M/abstract
https://ui.adsabs.harvard.edu/abs/2003Icar..164..228F/abstract
https://ui.adsabs.harvard.edu/abs/1977ApJS...35..221S/abstract
https://ui.adsabs.harvard.edu/abs/1977ApJS...35..239S/abstract
Index