Ganymede's auroral footprint has multiple spots
Article first published online: 26 NOV 2013
©2013. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 94, Issue 48, page 468, 26 November 2013
How to Cite
2013), Ganymede's auroral footprint has multiple spots, Eos Trans. AGU, 94(48), 468.(
- Issue published online: 26 NOV 2013
- Article first published online: 26 NOV 2013
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The moons of giant planets can create a phenomenon called an “auroral footprint,” which is due to an interaction between the moon and the planet's magnetosphere. This phenomenon, which has been observed for Jupiter's moons Io, Europa, and Ganymede as well as Saturn's moon Enceladus, is usually seen as a single spot in the planet's aurora. However, Io has an auroral footprint that is known to be made up of at least three spots. Scientists wondered if a multispot auroral footprint is common or unique to Io.