Hydrogen sulfide on Io - Evidence from telescopic and laboratory infrared spectra

Details Hydrogen sulfide on Io - Evidence from telescopic and laboratory infrared spectra Hydrogen sulfide on Io - Evidence from telescopic and laboratory infrared spectra

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989sci...244..454n&link_type=abstract

Science (ISSN 0036-8075), vol. 244, April 28, 1989, p. 454-457.

Astronomy and Astrophysics

Astronomy

43

Hydrogen Sulfide, Infrared Spectra, Io, Planetary Composition, Satellite Surfaces, Frost, Infrared Astronomy, Spectral Reflectance, Sulfur Dioxides, Jupiter, Satellites, Io, Hydrogen Sulfide, Astronomy, Spectroscopy, Telescope Methods, Laboratory Studies, Surface, Reflectance, Condensates, Infrared, Wavelengths, Atmosphere, Brightness, Hypotheses, Condensation, Comparisons, Frost, Optical Properties

Scientific paper

Evidence is reported for hydrogen sulfide on Io's surface. An infrared band at 3.915 (+ or - 0.015) micrometers in several ground-based spectra of Io can be accounted for by reflectance from H2S frost deposited on or cocondensed with sulfur dioxide frost. Temporal variation in the occurrence and intensity of the band suggests that condensed H2S on Io's surface is transient, implying a similar variation of H2S abundance in Io's atmosphere.

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