Evidence for high-altitude haze thickening on the dark side of Venus from 10-micron heterodyne spectroscopy of CO2

Details Evidence for high-altitude haze thickening on the dark side of Venus from 10-micron heterodyne spectroscopy of CO2 Evidence for high-altitude haze thickening on the dark side of Venus from 10-micron heterodyne spectroscopy of CO2

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982icar...49...35d&link_type=abstract

Icarus, vol. 49, Jan. 1982, p. 35-48.

Astronomy and Astrophysics

Astronomy

4

Astronomical Spectroscopy, Carbon Dioxide, Haze Detection, Infrared Spectroscopy, Line Spectra, Venus Atmosphere, Absorption Spectra, Atmospheric Pressure, Emission Spectra, High Altitude, Opacity, Optical Heterodyning, Spectral Line Width, Spectral Resolution, Venus Clouds, Weighting Functions, Venus, Altitude, Haze, Thickness, Spectroscopy, Carbon Dioxide, Data, Observations, Infrared, Absorption, Emissions, Models, Stratosphere, Pressure, Optical Properties, Dayside, Nightside, Thermal Properties, Analys

Scientific paper

Infrared heterodyne spectroscopy provides data for isolated spectral lines with a spectral resolution which is small compared to the Doppler width. Heterodyne spectroscopy of CO2 lines near 10 micrometers was first reported for the atmosphere of Venus by Betz et al. (1976). The present investigation is concerned with observations of two absorption lines of (C-12)(O-16)2 conducted with an infrared heterodyne spectrometer interfaced with a solar telescope. The 10.8598-micrometer P(44) line was observed on the day side of Venus and the 10.3337-micrometer R(8) line was observed on the night side. It is shown that continuous opacity due to haze, and possible departures from vibrational LTE in CO2, are crucial considerations in fitting the observed lines.

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