Jovian upper atmospheric temperature measurement by the Voyager 1 UV spectrometer

Details Jovian upper atmospheric temperature measurement by the Voyager 1 UV spectrometer Jovian upper atmospheric temperature measurement by the Voyager 1 UV spectrometer

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979georl...6..795a&link_type=abstract

Geophysical Research Letters, vol. 6, Oct. 1979, p. 795-798. NSF-supported research;

Astronomy and Astrophysics

Astronomy

5

Atmospheric Temperature, Exosphere, Jupiter Atmosphere, Ultraviolet Spectroscopy, Voyager Project, Gravity Waves, Solar Spectra, Spectrometers, Stellar Occultation, Ultraviolet Astronomy, Jupiter, Atmosphere, Temperatures, Voyager 1, Exosphere, Ultraviolet Spectrometer, Magnetosphere, Electrons, Toruses, Plasmas, Data, Analysis, Spectrum, Wavelengths, Absorption, Thermal Conductivity, Heating

Scientific paper

A measurement of the neutral temperature in the exosphere of Jupiter is reported. The observations were carried out by the Voyager 1 Ultraviolet Spectrometer during the solar occultation phase beginning 4.5 hours after the Jupiter encounter. The range of the exospheric temperature is found to be 1450 (+300, -250) K. The uncertainty in the determination of the temperature appears to be largely a consequence of the lack of knowledge of the brightness distribution on the solar disk at the time of the observations. The high exospheric temperature appears to result from a combination of upward-propagating inertia gravity waves, magnetospheric soft electrons, and auroral electrons, including those from the Io-plasma torus.

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