Infrared%20Aurorae%20in%20the%20Solar%20System

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Infrared Aurorae in the Solar System
ATMOSPHERIC PHYSICS LABORATORYDEPARTMENT OF
PHYSICS AND ASTROMONY
Tom Stallard
Steve Miller, Henrik Melin, Makenzie Lystrup
and the Cassini community, especially Emma
Bunce, Chris Arridge, Nick Achilleos and Michele
Dougherty
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H3 formation   H2 hn H2 e H2
e H2 e e H2 H2 H3
H H3 destruction H3 X HX H2
H3 e- H H2
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Imaging Jupiter
Infrared (Connerney et al)
Ultraviolet (Clarke et al)
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Saturn
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Uranus
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Spectroscopy Jupiter
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• Multiple line spectroscopy provides
• emission intensities
• temperature
• composition
• cooling rates
• vertical thermal profile
• atmospheric densities

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IR observations of Jupiter
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Temperature
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Cooling
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Ion Winds
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(No Transcript)
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(No Transcript)
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High resolution observations of Saturn
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(No Transcript)
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Compared with the UV emission
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1.3 smear
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Infilled
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(No Transcript)
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Saturn
Jupiter
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Saturn
Co-rotation breakdown
Jupiter
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Saturn
Co-rotation breakdown
Outer effects
Jupiter