Computer Science
Scientific paper
Jul 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991hst..prop.4005s&link_type=abstract
HST Proposal ID #4005
Computer Science
Hst Proposal Id #4005
Scientific paper
The critical issue in Jovian x-ray production is whether the X-RAYS are electron bremsstrahlung- or precipitating ion-generated. Near-simultaneous UV and x-ray measurements are required to resolve this. Ulysses will make x-ray measurements of the Jovian aurora during its flyby on 7-9 Feb 1992. However, these x-ray observations will be ambiguous unless the power of the aurora is known. This can be accomplished by FOC imaging Jovian auroral region UV Lyman band H2 emissions. We will make 4 images of Jupiter's polar regions (two each north and south at specified times coordinated with Ulysses measurements), using the f/96 chain with filters F130M and F140W in series. The F130M filter contains our key H2 band; the F140W filter is used to reduce effects of red leaks. Adopting unzoomed pixels (z=1), exposure times of 39 minutes should yield an S/N of 9-11 in binned 1 arc-sec resolution elements, assuming an H2 brightness of 7 kR. The H2 could be much brighter.
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