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Complex structure within Saturn's infrared aurora
Drossart, Pierre; Dougherty, Michele K.; Bunce, Emma J. +14 more
The majority of planetary aurorae are produced by electrical currents flowing between the ionosphere and the magnetosphere which accelerate energetic charged particles that hit the upper atmosphere. At Saturn, these processes collisionally excite hydrogen, causing ultraviolet emission, and ionize the hydrogen, leading to H3+ …