Evidence for ammonium-bearing minerals on Ceres

Details Evidence for ammonium-bearing minerals on Ceres Evidence for ammonium-bearing minerals on Ceres

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992sci...255.1551k&link_type=abstract

Science (ISSN 0036-8075), vol. 255, March 20, 1992, p. 1551-1553.

Computer Science

49

Ammonium Compounds, Ceres Asteroid, Mineralogy, Planetary Composition, Silicates, Absorption Spectra, Infrared Absorption

Scientific paper

Spectra obtained from recent telescopic observation of 1-Ceres and laboratory measurements and theoretical calculations of three component mixtures of Ceres analog material suggest that an ammoniated phyllosilicate is present on the surface of the asteroid, rather than H2O frost as had been previously reported. The presence of an ammoniated phyllosilicate, most likely ammoniated saponite, on the surface of Ceres implies that secondary temperatures could not have exceeded 400 Kelvin.

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