Are Auroras Known to Exist on Ganymede

question 259

Multiple Choice

Are auroras known to exist on Ganymede?

• A) No. It is much too cold for auroras to exist on Ganymede.
• B) No. Ganymede is too far from the Sun to have appreciable numbers of solar charged particles interact with its magnetic field.
• C) Yes. Charged particles from Jupiter's magnetosphere interact with Ganymede's atmosphere to produce auroras.
• D) Yes. Sulfur ions from the Io torus interact with Ganymede's magnetic field to produce a primarily yellow aurora.

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