31st Annual Meeting of the DPS, October 1999
Session 74. Io: Volcanism and Sublimation Cycles
Contributed Oral Parallel Session, Friday, October 15, 1999, 2:00-3:30pm, Sala Pietro d'Abano

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[74.02] Mapping and monitoring of Io's hot spots by use of the ESO Adaptive Optics system.

R. Prang\'e (Institut d'Astrophysique Spatiale), F. Marchis (European Southern Observatory)

Both sides of Io have been observed on several occasions in 1996, 1998 and 1999, using the high resolution capability of the Adaptive Optics (AO) system implemented on the ESO 3.6~m telescope at La Silla, Chile. These observations performed at thermal IR wavelengths, through the L' broadband filter (3.8 \mum) when Io is in daylight, have been carefully processed to restore the sharpness of the initial images up to the telescope diffraction limit. The myopic deconvolution process applied {\em idac} archieves an angular resolution estimated to ~ 0.15 arcsec, corresponding to a spatial resolution of ~ 350-400~km on Io's central meridian. The resulting composite maps, including the antijovian face of Io, show various bright features which are compared with the Galileo/NIMS data. We will also addresss the temporal variability of Io's volcanic activity.

If you would like more information about this abstract, please follow the link to http://sc6.sc.eso.org:80/~fmarchis/Io_OA/Interact. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: marchis@eso.org

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