Croconic acid - an absorber in the Venus clouds?

Details Croconic acid - an absorber in the Venus clouds? Croconic acid - an absorber in the Venus clouds?

Publishing date

Feb 1989

URL

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989icar...77..382h&link_type=abstract

Journals

Icarus (ISSN 0019-1035), vol. 77, Feb. 1989, pt. 1, p. 382-390. Research supported by the University of California.

Science

Physics

Additional info 2

7

Additional info 3

Carbon Monoxide, Mie Scattering, Sulfuric Acid, Ultraviolet Absorption, Venus Clouds, Albedo, Pioneer Venus Spacecraft, Venus, Clouds, Croconic Acid, Absorption, Wavelengths, Ultraviolet, Models, Scattering, Albedo, Optical Properties, Depth, Chemistry, Concentration, Altitude, Abundance, Spacecraft Observations, Pvm Mission, Lcps Instrument

Type

Scientific paper

Abstract

The absorbing species responsible for the UV cloud features and pale yellow hue of the Venus clouds is presently suggested to be the carbon monoxide-polymer croconic acid, which strongly absorbs in the blue and near-UV. Laboratory absorption-coefficient measurements of a dilute solution of croconic acid in sulfuric acid are used as the bases of cloud-scattering models; the Venus planetary albedo's observed behavior in the blue and near-UV are noted to be qualitatively reproduced. Attention is given to a plausible croconic acid-production mechanism for the Venus cloudtop region.

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