Observations of the 4 micron fundamental band of H3(+) in Jupiter

Details Observations of the 4 micron fundamental band of H3(+) in Jupiter Observations of the 4 micron fundamental band of H3(+) in Jupiter

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...351l..53o&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 351, March 10, 1990, p. L53-L56.

Astronomy and Astrophysics

Astronomy

71

Hydrogen, Infrared Spectra, Jupiter (Planet), Molecular Spectra, Planetary Ionospheres, Astronomical Spectroscopy, Atmospheric Composition, Auroras, Interstellar Chemistry, Vibrational Spectra, Jupiter, Hydrogen, Emissions, Ionosphere, Polar Regions, Infrared, Spectra, Auroras, Abundance, Atmosphere, Wavelengths, Astronomy, Ions, Earth-Based Observations, Analysis, Density, Temperature

Scientific paper

Emission lines of the nu2 fundamental vibration-rotation band of H3(+) have been detected in the northern and southern polar ionospheres of Jupiter. The recently discovered 2-micron overtone band of H3(+) is currently absent from the spectra of Jupiter's poles, as are lines of several other hot bands of H3(+) and 2-micron lines of H2, implying that physical conditions in Jupiter's auroral regions have changed considerably within a period of about 1 yr. The present observations provide added evidence for a large abundance H3(+) in localized zones of the Jovian atmosphere.

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