Argon in the Martian atmosphere - Evidence from the Mars 6 descent module

Details Argon in the Martian atmosphere - Evidence from the Mars 6 descent module Argon in the Martian atmosphere - Evidence from the Mars 6 descent module

Jun 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976icar...28..155i&link_type=abstract

Icarus, vol. 28, June 1976, p. 155-158.

Other

3

Argon, Mars Atmosphere, Mars 6 Spacecraft, Mass Spectroscopy, Parachute Descent, Atmospheric Composition, Calibrating, Carbon Dioxide, Ion Pumps, Rare Gases, Tethering

Scientific paper

During the descent of the Mars 6 space probe after parachute deployment, an analysis was carried out by means of a mass spectrometer, the analyzer of which was pumped out by a getter-ion pump. Unfortunately, mass spectra were not obtained. But during vehicle descent on a parachute tether, the pump discharge current was registered. The dynamics of the pump current at the end of descent operations imply that an inert gas is a basic component of the Martian atmosphere, along with CO2. Laboratory post-experiment calibrations of other getter-ion pumps, performed with various mixtures of CO2 and argon, result in a probable value of the argon content in the Martian atmosphere of 35% (plus or minus 10%).

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