Io: Evidence for silicate volcanism in 1986

Torrence V. Johnson, Glenn J. Veeder, Dennis L. Matson, Robert H. Brown, Robert M. Nelson, David Morrison

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Abstract

Infrared observations of Io during the 1986 apparition of Jupiter indicate that a large eruptive event occurred on the leading side of Io on 7 August 1986, Universal Time. Measurements made at 4.8, 8.7, and 20 micrometers suggest that the source of the event was about 15 kilometers in radius with a model temperature of ∼900 Kelvin. Together with previously reported events, these measurements indicate that high-temperature volcanic activity on the leading side of Io may be more frequent than previously thought. The inferred temperature is significantly above the boiling point of sulfur in a vacuum (715 Kelvin) and thus constitutes strong evidence for active silicate volcanism on the surface of Io.

Original languageEnglish (US)
Pages (from-to)1280-1283
Number of pages4
JournalScience
Volume242
Issue number4883
StatePublished - 1988
Externally publishedYes

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volcanism
silicate
Jupiter
temperature
sulfur
boiling point

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Cite this

Johnson, T. V., Veeder, G. J., Matson, D. L., Brown, R. H., Nelson, R. M., & Morrison, D. (1988). Io: Evidence for silicate volcanism in 1986. Science, 242(4883), 1280-1283.

Io : Evidence for silicate volcanism in 1986. / Johnson, Torrence V.; Veeder, Glenn J.; Matson, Dennis L.; Brown, Robert H.; Nelson, Robert M.; Morrison, David.

In: Science, Vol. 242, No. 4883, 1988, p. 1280-1283.

Research output: Contribution to journalArticle

Johnson, TV, Veeder, GJ, Matson, DL, Brown, RH, Nelson, RM & Morrison, D 1988, 'Io: Evidence for silicate volcanism in 1986', Science, vol. 242, no. 4883, pp. 1280-1283.
Johnson TV, Veeder GJ, Matson DL, Brown RH, Nelson RM, Morrison D. Io: Evidence for silicate volcanism in 1986. Science. 1988;242(4883):1280-1283.
Johnson, Torrence V. ; Veeder, Glenn J. ; Matson, Dennis L. ; Brown, Robert H. ; Nelson, Robert M. ; Morrison, David. / Io : Evidence for silicate volcanism in 1986. In: Science. 1988 ; Vol. 242, No. 4883. pp. 1280-1283.
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