Short-period variations of the polarization properties of Venusian radiation

Details Short-period variations of the polarization properties of Venusian radiation Short-period variations of the polarization properties of Venusian radiation

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992kfnt....8...22m&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 8, no. 4, July-Aug. 1992, p. 22-36. In Russian.

Astronomy and Astrophysics

Astronomy

Planetary Radiation, Polarization Characteristics, Variability, Venus Atmosphere, Astronomical Polarimetry, Astronomical Spectroscopy, Optical Thickness, Scattering Coefficients, Time Dependence, Ultraviolet Astronomy

Scientific paper

Results of spectropolarimetric observations of the entire disk of Venus in the UV and visual ranges are presented. Variations of the polarization degree with a period of about four days are clearly observed in the entire range from 330 to 760 nm. At a phase angle of 70 deg, the amplitude of these variations reaches 0.6-0.7 percent, and is virtually independent of the wavelength. It is suggested that the observed time variations can be explained in the framework of the Fomin-Ianovitskii (1990) model, according to which the main cloud layer is asymmetric.

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