Other
Scientific paper
Mar 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13..201m&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 13, March 1986, p. 201-204. NASA-supported research.
Other
7
Astronomical Models, Galilean Satellites, Io, Occultation, Temperature Distribution, Albedo, Infrared Spectra, Planet Ephemerides, Visible Spectrum, Volcanoes, Jupiter, Satellites, Io, Occultations, Hot Spots, Calculations, Models, Volcanoes, Thermal Properties, Temperature, Wavelengths, Ephemerides, Geometry, Reflectance, Emissions, Voyager 1, Spacecraft Observations, Iris, Infrared Interferometer Spectrometer, Distribution, Source, Loki
Scientific paper
Occultations of Io by other Galilean satellites in 1985 provide a means to locate volcanic hot spots and to model their temperatures. The expected time variations in the integral reflected and emitted radiation of the occultations are computed as a function of wavelength (visual to 8.7 microns). The best current ephemerides were used to calculate the geometry of each event as viewed from earth. Visual reflectances were modeled from global mosaics of Io. Thermal emission from the hot spots was calculated from Voyager 1 IRIS observations and, for regions unobserved by IRIS, from a model based on the distribution of low-albedo features. The occultations may help determine (1) the location and temperature distribution of Loki; (2) the source(s) of excess emission in the region from long 50 deg to 200 deg and (3) the distribution of small, high-temperature sources.
Johnson Torrence V.
Lunine Jonathan I.
Matson Dennis L.
McEwen Alfred S.
Soderblom Larry A.
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