The structure of Io's corona

N. M. Schneider, D. M. Hunten, W. K. Wells, A. B. Schultz, Uwe - Fink

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

A spatial profile of the distribution of sodium in Io's corona has been constructed using measurements obtained during satellite mutual eclipses. The data reveal a fairly symmetric corona whose density falls steeply from the surface out to 6 rIo and more slowly outside. An upper limit of 700 km is placed on the exobase altitude, but the observations do not constrain the surface density. Several theoretical models adequately match some traits of the corona, but none satisfies all the observations. No strong upstream/downstream asymmetry of the corona is observed, so it is unlikely that the corona is primarily generated by the impact of corotating ions into the trailing hemisphere.

Original languageEnglish (US)
Pages (from-to)298-315
Number of pages18
JournalAstrophysical Journal
Volume368
Issue number1
StatePublished - Feb 10 1991

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Io
coronas
corona
eclipses
hemispheres
upstream
asymmetry
sodium
ion
profiles
ions

Keywords

  • Planets: Jupiter
  • Planets: satellites

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Schneider, N. M., Hunten, D. M., Wells, W. K., Schultz, A. B., & Fink, U. . (1991). The structure of Io's corona. Astrophysical Journal, 368(1), 298-315.

The structure of Io's corona. / Schneider, N. M.; Hunten, D. M.; Wells, W. K.; Schultz, A. B.; Fink, Uwe -.

In: Astrophysical Journal, Vol. 368, No. 1, 10.02.1991, p. 298-315.

Research output: Contribution to journalArticle

Schneider, NM, Hunten, DM, Wells, WK, Schultz, AB & Fink, U 1991, 'The structure of Io's corona', Astrophysical Journal, vol. 368, no. 1, pp. 298-315.
Schneider NM, Hunten DM, Wells WK, Schultz AB, Fink U. The structure of Io's corona. Astrophysical Journal. 1991 Feb 10;368(1):298-315.
Schneider, N. M. ; Hunten, D. M. ; Wells, W. K. ; Schultz, A. B. ; Fink, Uwe -. / The structure of Io's corona. In: Astrophysical Journal. 1991 ; Vol. 368, No. 1. pp. 298-315.
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