Identification of gaseous SO₂ and new upper limits for other gases on Io (original) (raw)

NASA/ADS

;

• Hanel, R. ;
• Kunde, V. ;
• Maguire, W. ;
• Fox, K. ;
• Gupta, S. ;
• Ponnamperuma, C. ;
• Raulin, F.

Abstract

Gaseous SO2 has been identified on Io. The estimated abundance of 0.2 cm atm is consistent with an atmosphere in equilibrium with solid SO2 at the local surface equilibrium temperature. Preliminary upper limits for several gases, including sulphur compounds and other terrestrial volcanic emissions have been derived. Io is apparently depleted in hydrogen, carbon and nitrogen.

Publication:

Nature

Pub Date:

August 1979

DOI:

10.1038/280755a0

Bibcode:

1979Natur.280..755P

Keywords:

• Atmospheric Composition;
• Gas Composition;
• Io;
• Sulfur Dioxides;
• Volcanology;
• Abundance;
• Gas Analysis;
• Surface Temperature;
• Thermodynamic Equilibrium;
• Voyager Project;
• Lunar and Planetary Exploration