Using STIS Observations of Auroral Lyman Alpha Line Profiles to Map High-Altitude Winds on Jupiter

Details Using STIS Observations of Auroral Lyman Alpha Line Profiles to Map High-Altitude Winds on Jupiter Using STIS Observations of Auroral Lyman Alpha Line Profiles to Map High-Altitude Winds on Jupiter

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003hst..prop.9941m&link_type=abstract

HST Proposal ID #9941

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Hst Proposal Id #9941 Solar System

Scientific paper

We propose to analyze high-resolution long-slit echelle spectra of Jupiter's auroral Lyman alpha emissions obtained by STIS during the Cassini flyby of 12/2000-1/2001. We will use a newly-developed velocity shear resonance line radiative transfer code to extract upper atmosphere wind velocities {using an asymmetry produced when the emergent self-reversed line is scattered by fast-moving H atoms high above the aurora}. These velocities will then be used {along with other extracted quantities, such as temperature and composition} to constrain a newly-developed Jupiter Thermosphere General Circulation Model {JTGCM}. The results will enhance our understanding of how Jupiter's aurora manages to affect its upper atmospheric dynamics on a global scale.

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