Latitudinal temperature variations of Jovian H3(+)

Details Latitudinal temperature variations of Jovian H3(+) Latitudinal temperature variations of Jovian H3(+)

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994icar..107..189b&link_type=abstract

Icarus, vol. 107, p. 189

Astronomy and Astrophysics

Astronomy

29

Jupiter Atmosphere, Temperature Measurement, Infrared Telescopes, Hydrogen Ions, Vibrational Spectra, Ionospheric Ion Density, Lyman Alpha Radiation, Planetary Ionospheres, Infrared Astronomy

Scientific paper

The phenomenon of the Lyman-alpha Bulge in the Jovian equatorial region is examined in the light of a new image of Jupiter centered on 3.45 nm, taken on the night of April 2, 1992 using the CGS4 cooled grating spectrometer. The image shows that H3(+) emission features extend right across the Jovian disk, at least at a central meridian longitude of 102 deg, coinciding with the region of the Lyman-alpha Bulge. An analysis of these features indicates that the Jovian disk may be divided into three regions: two mid-high latitude regions with temperatures around 800 K and a hotter central region with a temperature about 1200 K. Some unidentified features are also discussed.

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