Saturn's Far UV Aurora and Polar Hazes

Details Saturn's Far UV Aurora and Polar Hazes Saturn's Far UV Aurora and Polar Hazes

Jul 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999hst..prop.8117t&link_type=abstract

HST Proposal ID #8117

Computer Science

Hst Proposal Id #8117 Solar System

Scientific paper

We propose to carry out a coordinated program of STIS imaging and spectroscopy in the FUV and NUV during one full rotation of the planet in order to capture a complete picture of the south auroral emission region on Saturn. FUV imaging and chapman-profile modeling is our lever to characterize emissions from above the homopause, while FUV and NUV spectroscopy and radiative transfer modeling will describe the atmospheric phenomena driven by particle radiation that penetrates below the homopause. The proposed observation is a direct extension of a program of WFPC2 and STIS imaging begun in Cycles 6 and 7. Very little is presently known about the range of possible morphologies and temporal behaviors in the Saturn aurora. One complete rotation is required to sort out the planet-fixed and local-time-fixed characteristics, and to provide spectra with sufficient S/N to reliably constrain the radiative transfer modeling.

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