VEGA 1 and 2 gas-chromatographic analysis of thermal-reaction products of Venus cloud-layer aerosol

Details VEGA 1 and 2 gas-chromatographic analysis of thermal-reaction products of Venus cloud-layer aerosol VEGA 1 and 2 gas-chromatographic analysis of thermal-reaction products of Venus cloud-layer aerosol

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987kosis..25..715p&link_type=abstract

Kosmicheskie Issledovaniia (ISSN 0023-4206), vol. 25, Sept.-Oct. 1987, p. 715-720. In Russian.

Physics

Atmospheric Chemistry, Cloud Physics, Gas Chromatography, Vega Project, Venus Atmosphere, Aerosols, Carbon Dioxide, Sulfur Dioxides, Water

Scientific paper

Measurements made with the Sigma-3 gas-chromatography setup led to the identification of CO2, H2S, COS, H2O, and SO2 in the Venus cloud layer. The concentration of H2SO4 aerosol was found to be much less than 1 mg/cu m at heights of 61.5-54 km over the Vega-1 landing site; at heights of 61.5-48 km, the mean concentration of H2SO4 aerosol was 1.0 + or - 0.2 mg/cu m; over the Vega-2 landing site, the concentration of H2SO4 was 0.6 + or - 0.1 mg/cu m over the Vega-2 landing site. In the absence of sulfur, the lower limit for the H2SO4 concentration is 0.4 + or - 0.1 mg/cu m.

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