Titre du document

Is the four-day “rotation” of venus illusory?

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Nom du Corpus

AstroConcepts

Auteur(s)
  • Andrew T. Young
Affiliation(s)
  • Department of Physics, Texas A & M University, College Station, Texas 77843, USA
Résumé

An overlooked systematic error exists in the apparent radial velocities of solar lines reflected from regions of Venus near the terminator, owing to a combination of the finite angular size of the Sun and its large (2 km/sec) equatorial velocity of rotation. This error produces an apparent, but fictitious, retrograde component of planetary rotation, typically on the order of 40 m/sec. Spectroscopic, photometric, and radiometric evidence against a 4-day atmospheric rotation is also reviewed. The bulk of the somewhat contradictory evidence seems to favor slow motions, on the order of 5 m/sec, in the atmosphere of Venus; the 4-day “rotation” may be due to a travelling wavelike disturbance, not bulk motions, driven by the uv albedo differences.

Langue(s) du document
Anglais
Année de publication
1975
Revue

Icarus

Éditeur
Elsevier
Type de publication
journal
Type de document
research-article
Présence de XML structuré
Non
Version de PDF
1.3
Score de qualité du texte
8.416
Nom du concept
  • Beta Cephei stars
Catégories Science-Metrix
  • 1 - natural sciences ; 2 - physics & astronomy ; 3 - astronomy & astrophysics
Catégories Inist
  • 1 - sciences appliquees, technologies et medecines ; 2 - sciences exactes et technologie ; 3 - terre, ocean, espace ; 4 - geophysique externe
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Space and Planetary Science
  • 1 - Physical Sciences ; 2 - Physics and Astronomy ; 3 - Astronomy and Astrophysics
Catégories WoS
  • 1 - science ; 2 - astronomy & astrophysics
Identifiant ISTEX
E0EAF076DA08E24557B15F51315F400D2DCA4219
ark:/67375/6H6-6SNVLHV7-3
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