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Proceedings Paper

Keck AO observations of Io in and out of eclipse
Author(s): Imke de Pater; Franck Marchis; Bruce A. Macintosh; Henry G Roe; David Le Mignant; James R. Graham
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Paper Abstract

We present AO observations of Io before the satellite went into eclipse, and while it was in Jupiter's shadow. For the sunlit images Io itself was used as the wavefront reference source, while nearby Ganymede was used as reference 'star' when Io was in eclipse. Observations were obtained in Kp, Lp, and Ms bands. We show results before and after deconvolution of the data. We determined the flux densities for the hot spots from the original Io-in-eclipse data via a FFT method, and from the sunlit images after deconvolution of the images with MISTRAL. We present preliminary temperatures and areal coverages for the 6 brightest volcanoes.

Paper Details

Date Published: 13 February 2003
PDF: 11 pages
Proc. SPIE 4834, Discoveries and Research Prospects from 6- to 10-Meter-Class Telescopes II, (13 February 2003); doi: 10.1117/12.457096
Show Author Affiliations
Imke de Pater, Univ. of California/Berkeley (United States)
Franck Marchis, Univ. of California/Berkeley (United States)
Bruce A. Macintosh, Lawrence Livermore National Lab. (United States)
Henry G Roe, Univ. of California/Berkeley (United States)
David Le Mignant, W.M. Keck Observatory (United States)
James R. Graham, Univ. of California/Berkeley (United States)

Published in SPIE Proceedings Vol. 4834:
Discoveries and Research Prospects from 6- to 10-Meter-Class Telescopes II
Puragra Guhathakurta, Editor(s)

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