Artigo Acesso aberto Revisado por pares

Solar System Observations by the Wisconsin Ultraviolet Photopolarimeter Experiment.II.The First Linear Ultraviolet Spectropolarimetry of Io

1997; Institute of Physics; Volume: 113; Linguagem: Inglês

10.1086/118335

ISSN

1538-3881

Autores

G. K. Fox, A. D. Code, Christopher M. Anderson, B. Babler, K. S. Bjorkman, J. J. Johnson, M. R. Meade, K. H. Nordsieck., W. T. Sanders, A. J. Weitenbeck, N. E. B. Zellner, R. J. Edgar, O. L. Lupie,

Tópico(s)

Isotope Analysis in Ecology

Resumo

The Wisconsin Ultraviolet Photopolarimeter Experiment (WUPPE) observed Io during the Astro-1 mission on 1990 December 7 and during the Astro-2 mission on 1995 March 4, 9, and 16 in the wavelength range 2100-3100 Å with a resolution of 100 Å. The albedo measurements are consistent with about 25% of the surface being covered by an SO2 frost. Polarimetric differences between the March 9 and 16 observations (orbital phase 288° and 268°, respectively) are interpreted as arising due to the rotational effect of two polarized regions on Io which are either associated with the volcanic site Pele or Hephaestus Patera and Viracocha Patera.

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