Physics
Scientific paper
Oct 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986joat.conf...73k&link_type=abstract
In NASA. Goddard Inst. for Space Studies The Jovian Atmospheres p 73-76 (SEE N87-17598 09-91)
Physics
Hydrogen Atoms, Jupiter Atmosphere, Lyman Alpha Radiation, Lyman Spectra, Magnetospheric Electron Density, Spatial Distribution, Abundance, Atmospheric Temperature, Equatorial Atmosphere, Iue, Magnetic Anomalies, Planetary Ionospheres, Voyager Project
Scientific paper
An analysis is presented of the Voyager and IUE lyman alpha spectra of the Jovian equatorial emission in which was derived a zonal asymmetry in the hydrogen column abundance. Using two estimates of the fraction of Lyman alpha which is due to direct excitation by charged particle precipitation from the ionosphere, upper and lower limits were derived to the H column abundance within and without the perturbed region. That the asymmetry in H abundance may be due to localized heating near the homopause with a consequent rise in scale height is shown. The derived exospheric temperature remains fairly constant with longitude. The required additional heat input over the bulge region, 0.02 erg/cm/s, is supplied by an additional flux of magnetospheric electrons due to Jupiter's magnetic anomaly.
Chamberlain Joseph W.
Killen Rosemary Margaret
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