Discovery of hotspots on Io using disk-resolved infrared imaging

Details Discovery of hotspots on Io using disk-resolved infrared imaging Discovery of hotspots on Io using disk-resolved infrared imaging

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990natur.348..618s&link_type=abstract

Nature (ISSN 0028-0836), vol. 348, Dec. 13, 1990, p. 618-621.

Physics

47

Infrared Imagery, Io, Satellite Surfaces, Volcanology, Eclipses, Jupiter Atmosphere, Mapping, Voyager Project

Scientific paper

First results are presented using two new techniques for ground-based observation of Io's hotspots. An IR array camera was used to obtain direct IR images of Io with resolution better than 0.5 arcsec, so that more than one hotspot is seen on Io in Jupiter eclipse. The camera was also used to make the first observations of the Jupiter occultation of the hotspots. These new techniques have revealed and located at least three hotspots and will now permit routine ground-based monitoring of the locations, temperatures, and sizes of multiple hotspots on Io.

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