54 citations · 293 across the 17 of their papers we have counts for
8 papers · 1 filter
Plasma chemistry and electron-moderated pathways in substellar atmospheres: a new perspective on the L/T transition
Matthew I. Swayne, Declan A. Diver, Craig R. Stark
The long-standing puzzle of the CO/CH transition in brown dwarfs endures. Although the bulk spectral evolution across an atmosphere can be accounted for through thermal equil…
Dust cloud evolution in sub-stellar atmospheres via plasma deposition and plasma sputtering
Craig R. Stark, Declan A. Diver
In contemporary sub-stellar model atmospheres, dust growth occurs through neutral gas-phase surface chemistry. Recently, there has been a growing body of theoretical and observatio…
Ionisation and discharge in cloud-forming atmospheres of brown dwarfs and extrasolar planets
Ch. Helling, P. B. Rimmer, I. M. Rodriguez-Barrera +3
Brown dwarfs and giant gas extrasolar planets have cold atmospheres with a rich chemical compositions from which mineral cloud particles form. Their properties, like particle sizes…
Reference study to characterise plasma and magnetic properties of ultra-cool atmospheres
M. I. Rodriguez-Barrera, Ch. Helling, C. R. Stark +1
Radio and X-ray emission from brown dwarfs suggest that an ionised gas and a magnetic field with a sufficient flux density must be present. We perform a reference study for late M-…
Jupiter as a Giant Cosmic Ray Detector
Paul B. Rimmer, Craig R. Stark, Christiane Helling
We explore the feasibility of using the atmosphere of Jupiter to detect Ultra-High-Energy Cosmic Rays (UHECR's). The large surface area of Jupiter allows us to probe cosmic rays of…
Ionisation in atmospheres of brown dwarfs and extrasolar planets VI: Properties of large-scale discharge events
R. L. Bailey, Ch. Helling, G. Hodosán +2
Mineral clouds in substellar atmospheres play a special role as a catalyst for a variety of charge processes. If clouds are charged, the surrounding environment becomes electricall…