Astronomy and Astrophysics – Astronomy
Scientific paper
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.
Abergel Alain
Bertaux Jean Loup
Ekonomov A. P.
Gnedykh V. I.
Grigorev A. V.
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