Time-resolved observations of Jupiter's far-ultraviolet aurora

  • Gilda E. Ballester
  • , John T. Clarke
  • , John T. Trauger
  • , Walter M. Harris
  • , Karl R. Stapelfeldt
  • , David Crisp
  • , Robin W. Evans
  • , Eric B. Burgh
  • , 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
  • , Raghvendra Sahai
  • , Paul A. Scowen
  • Alan M. Watson, James A. Westphal

Research output: Contribution to journalArticlepeer-review

74 Scopus citations

Abstract

Simultaneous imaging and spectroscopic observations of Jupiter's far- ultraviolet aurora covering half a jovian rotation were made on 31 May 1994. The Hubble Space Telescope Wide Field Planetary Camera 2 images revealed dramatic and rapidly changing auroral features, including discrete longitudinal structures along the auroral ovals, with variable contrast; a poleward offset in a north oval sector, showing equatorward motion near dusk; emissions polewards of the ovals, apparently co-rotating; and a bright event developing near the dawn limb. Viewing geometry effects explain the rotational intensity modulation observed by the International Ultraviolet Explorer, without intrinsic longitudinal asymmetries.

Original languageEnglish (US)
Pages (from-to)409-413
Number of pages5
JournalScience
Volume274
Issue number5286
DOIs
StatePublished - Oct 18 1996
Externally publishedYes

ASJC Scopus subject areas

  • General

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