Jupiter's Aurora and Airglow

Details Jupiter's Aurora and Airglow Jupiter's Aurora and Airglow

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994hst..prop.5217t&link_type=abstract

HST Proposal ID #5217

Computer Science

Hst Proposal Id #5217 Solar System Giant Planets

Scientific paper

This cycle 4 proposal is for far-UV imaging of Jupiter's north auroral emissions in the H Ly alpha (1216 A) and H2 Lyman and Werner bands (900-1650 A). We estimate that WFPC2 with the Na metal filter will have 4-5 times higher efficiency and a much larger dynamic range than the present FOC images of Jupiter's aurora. Auroral images with a limiting sensitivity a few kR are important to reveal the full structure of the FUV auroral emission region. The longitudinal and short-term temporal dependences of the brightest sector of the north aurora will also be observed. These observations will be performed as the Galileo spacecraft approaches Jupiter, with a record of the solar wind properties near Jupiter for comparison with the WFPC2 observed auroral brightness and L-shell footprint for identification of the excitation processes. These observations constitute the first phase on this WFPC2 GTO program on Jupiter's upper atmosphere.

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