Active spectrometry of the ultraviolet absorption within the Venus atmosphere

Details Active spectrometry of the ultraviolet absorption within the Venus atmosphere Active spectrometry of the ultraviolet absorption within the Venus atmosphere

Feb 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pazh...12...78b&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 12, Jan. 1986, p. 78-84) Soviet Astronomy Letters (ISSN 0360-0327), vol. 12, Jan.-Feb.

Astronomy and Astrophysics

Astronomy

Astronomical Spectroscopy, Ultraviolet Absorption, Vega Project, Venus Atmosphere, Absorption Spectra, Spectral Bands, Spectrometers, Xenon Lamps

Scientific paper

The 2300-4000 A absorption spectrum of the Venus atmosphere was measured aboard the Vega 1 and Vega 2 landing modules by a stroboscopic xenon lamp and a 512-channel grating spectrometer, sampling a 170-cm optical path. A prominent broad absorption band, devoid of fine structure, shows a height-dependent profile suggesting that the principal absorbent may be the S8 allotrope of sulfur in the gas phase, with mixing ratios of 25 and 5 ppm at H the respective heights of 45 and 25 km.

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