Far-ultraviolet imaging of Jupiter's aurora and the Io 'footprint'

John T. Clarke, Gilda E. Ballester, John Trauger, Robin Evans, J. E.P. Connerney, Karl Stapelfeldt, David Crisp, Paul D. Feldman, Christopher J. Burrows, Stefano Casertano, John S. Gallagher, Richard E. Griffiths, J. Jeff Hester, John G. Hoessel, Jon A. Holtzman, John E. Krist, Vikki Meadows, Jeremy R. Mould, Paul Scowen, Alan M. WatsonJames A. Westphal

Research output: Contribution to journalArticlepeer-review

168 Scopus citations

Abstract

Far-ultraviolet images of Jupiter from the Hubble Space Telescope Wide Field Planetary Camera 2 reveal polar auroral emissions at 300 kilometer resolution and three times higher sensitivity than previously achieved. Persistent features include a main oval containing most of the emission and magnetically connected to the middle magnetosphere, diffuse and variable emissions poleward of the main oval, and discrete emission from Io's magnetic footprint equatorward of the oval. The auroral emissions are variable, exhibit magnetic conjugacy, and are visible above the planet limb. All emissions approximately co-rotate with Jupiter except the Io 'footprint,' which is fixed along Io's magnetic flux tube.

Original languageEnglish (US)
Pages (from-to)404-409
Number of pages6
JournalScience
Volume274
Issue number5286
DOIs
StatePublished - Oct 18 1996

ASJC Scopus subject areas

  • General

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