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Proceedings Paper

Io: the movie
Author(s): David Le Mignant; Franck Marchis; Shui Hung Kwok; Paola Amico; Randy D. Campbell; Frederic H. Chaffee; Albert Conrad; Adam R. Contos; Robert Goodrich; Grant M. Hill; David Sprayberry; Paul J. Stomski; Peter L. Wizinowich; Imke de Pater
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Paper Abstract

The Keck II Adaptive Optics system and the NIRC2 camera provide a unique facility for high angular resolution imaging and spectroscopy in the near infrared. In this paper, we present the result of a unique project to map the entire surface of Io in the thermal infrared (Lp band centered at 3.8 μm). This project was undertaken by a team from the W. M. Keck Observatory and UC Berkeley to illustrate the power of this instrumentation. The 75-milliarcsec-resolution images, corresponding to ~200 km of linear spatial resolution on Io, have been combined to build a thermal infrared map of the entire satellite. We have identified 26 hot spots including one that was undetected by the Galileo mission. A movie and a Java applet featuring a volcanically active rotating satellite were created.

Paper Details

Date Published: 13 February 2003
PDF: 10 pages
Proc. SPIE 4834, Discoveries and Research Prospects from 6- to 10-Meter-Class Telescopes II, (13 February 2003); doi: 10.1117/12.457108
Show Author Affiliations
David Le Mignant, W.M. Keck Observatory (United States)
Franck Marchis, Univ. of California/Berkeley (United States)
Shui Hung Kwok, W.M. Keck Observatory (United States)
Paola Amico, W.M. Keck Observatory (United States)
Randy D. Campbell, W.M. Keck Observatory (United States)
Frederic H. Chaffee, W.M. Keck Observatory (United States)
Albert Conrad, W.M. Keck Observatory (United States)
Adam R. Contos, W.M. Keck Observatory (United States)
Robert Goodrich, W.M. Keck Observatory (United States)
Grant M. Hill, W.M. Keck Observatory (United States)
David Sprayberry, W.M. Keck Observatory (United States)
Paul J. Stomski, W.M. Keck Observatory (United States)
Peter L. Wizinowich, W.M. Keck Observatory (United States)
Imke de Pater, 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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