Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996dps....28.2228w&link_type=abstract
American Astronomical Society, DPS meeting #28, #22.28; Bulletin of the American Astronomical Society, Vol. 28, p.1146
Astronomy and Astrophysics
Astronomy
Scientific paper
Energetic particle precipitation is thought to dominate the dynamics of Jupiter's thermosphere. Observational data about the spatial distribution, temporal variability, and morphology of high-latitude auroral emissions as well as data about the identities and energy distributions of the precipitating particles are thus essential for the successful implementation of a Jovian thermospheric general circulation model (JTGCM). Moreover, the recent detection of X-ray emissions from Jupiter's equatorial regions indicates that significant charged particle precipitation may occur at lower latitudes as well, providing an important additional source of energy for Jupiter's thermosphere-ionosphere system. We will discuss recent Hubble Space Telescope and ROSAT observations in the context of an initial model of Jupiter's auroral thermosphere and will examine the implications of the equatorial X-ray observations both for the vertical temperature profile determined on the basis of Galileo probe measurements and for modeling studies of Jovian thermospheric dynamics.
Bougher Stephen W.
Cravens Thomas E.
Drossart Pierre
Gladstone Randall G.
Lewis William S.
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