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Title:
Heterodyne detection of CO2 emission lines and wind velocities in the atmosphere of Venus
Authors:
Betz, A. L.; Johnson, M. A.; McLaren, R. A.; Sutton, E. C.
Affiliation:
AA(California, University, Berkeley, Calif.), AB(California, University, Berkeley, Calif.), AC(California, University, Berkeley, Calif.)
Publication:
Astrophysical Journal, vol. 208, Sept. 15, 1976, pt. 2, p. L141-L144. (ApJL Homepage)
Publication Date:
09/1976
Category:
Lunar and Planetary Exploration
Origin:
STI
NASA/STI Keywords:
Carbon Dioxide, Emission Spectra, Infrared Spectra, Optical Heterodyning, Planetary Radiation, Venus Atmosphere, Wind Velocity, Atmospheric Circulation, Doppler Effect, Line Spectra, Spectrum Analysis, Vertical Motion
DOI:
10.1086/182251
Bibliographic Code:
1976ApJ...208L.141B

Abstract

Strong 10-micron line emission from (C-12)(O-16)2 in the upper atmosphere of Venus has been detected by heterodyne techniques. Observations of the absolute Doppler shift of the emission features indicated mean zonal wind velocities less than 10 m/s in the upper atmosphere near the equator. No evidence was found for the 100-m/s wind velocity implied by the apparent four-day rotation period of ultraviolet cloud features.

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