Vacuum weathering of sulfur - Temperature effects and applications to Io

Details Vacuum weathering of sulfur - Temperature effects and applications to Io Vacuum weathering of sulfur - Temperature effects and applications to Io

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988georl..15..697n&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 15, July 1988, p. 697-700.

Physics

7

Io, Planetary Composition, Satellite Surfaces, Sulfur, Surface Temperature, Weathering, Satellite Observation, Temperature Effects, Ultraviolet Spectra, Vacuum

Scientific paper

The effect of surface temperature on the initial transient and subsequent steady-state behavior of the vacuum-sublimation rate and the UV/visible spectral reflectance of frozen sulfur has been investigated. Surface temperature is found to be the dominant parameter controlling the rate of vacuum weathering of sulfur. The present results suggest that any freshly-frozen sulfur deposits on Io at typical Io hotspot temperatures should display major transient changes in color in a matter of hours to days. It is noted that these rapid changes in spectral reflectivity should be readily detectable by future high-resolution synotopic observations of Io spectrum in the UV/visible.

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