The Aurora and Airglow of Uranus

Details The Aurora and Airglow of Uranus The Aurora and Airglow of Uranus

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994hst..prop.5220t&link_type=abstract

HST Proposal ID #5220

Physics

Hst Proposal Id #5220 Solar System Giant Planets

Scientific paper

WFPC2 observations of Uranus in the FUV will show the spatial distribution of the H Ly a and H2 Lyman and Werner band emissions with 20-80 pixels across the disk (depending on read-out and limiting sensitivity). The Uranus aurora are known to be variable, but present in the sunlit hemisphere, and spatial variations in the airglow emission appear in the Voyager UVS data. We will have a good sensitivity to discrete auroral regions, or ovals, and best measure the airglow emissions near the limb where they are enhanced in both optical depth and brightness. We will also study the extended H cloud (and in cycle 5 the possible OH cloud) coming from Uranus and its ring/satellite system. This proposal is the first phase of a WFPC2 GTO program on Uranus.

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