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Science 19 May 2000:
Vol. 288. no. 5469, pp. 1201 - 1204
DOI: 10.1126/science.288.5469.1201
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Reports
A Close-Up Look at Io from Galileo's Near-Infrared Mapping Spectrometer
Rosaly Lopes-Gautier,
1*
S. Douté,
2
W. D. Smythe,
1
L.
W. Kamp,
1
R. W. Carlson,
1
A. G. Davies,
1
F. E. Leader,
2
A. S. McEwen,
4
P. E. Geissler,
4
S. W. Kieffer,
3
L. Keszthelyi,
4
E. Barbinis,
1
R. Mehlman,
2
M. Segura,
1
J. Shirley,
1
L. A. Soderblom
5
Infrared spectral images of Jupiter's volcanic moon Io, acquired
during the October and November 1999 and February 2000 flybys of the
Galileo spacecraft, were used to study the thermal structure and sulfur
dioxide distribution of active volcanoes. Loki Patera, the solar
system's most powerful known volcano, exhibits large expanses of dark,
cooling lava on its caldera floor. Prometheus, the site of long-lived
plume activity, has two major areas of thermal emission, which support
ideas of plume migration. Sulfur dioxide deposits were mapped at local
scales and show a more complex relationship to surface colors than
previously thought, indicating the presence of other sulfur compounds.
1 Jet Propulsion Laboratory, California
Institute of Technology, Pasadena, CA 91109, USA.
2 IGPP, University of California, Los Angeles, CA
90095, USA.
3 S. W. Kieffer Science Consulting Inc.,
6 Queen Street, Suite 206, Post Office Box 520, Bolton, ON L7E 5T4
Canada.
4 Lunar and Planetary Laboratory, University
of Arizona, Tucson, AZ 85721, USA.
5 U.S. Geological
Survey, Flagstaff, AZ 86001, USA.
*
To whom correspondence should be addressed. E-mail:
rlopes{at}lively.jpl.nasa.gov
Read the Full Text
THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
- Flood lavas on Earth, Io and Mars.
- L. Keszthelyi, S. Self, and T. Thordarson (2006)
Journal of the Geological Society
163, 253-264
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- Flood Basalts, Basalt Floods or Topless Bushvelds? Lunar Petrogenesis Revisited.
- M. J. O'HARA (2000)
J. Petrology
41, 1545-1651
| Abstract »
| Full Text »
| PDF »
- Galileo at Io: Results from High-Resolution Imaging.
- A. S. McEwen, M. J. Belton, H. H. Breneman, S. A. Fagents, P. Geissler, R. Greeley, J. W. Head, G. Hoppa, W. L. Jaeger, T. V. Johnson, et al. (2000)
Science
288, 1193-1198
| Abstract »
| Full Text »
- Io's Thermal Emission from the Galileo Photopolarimeter- Radiometer.
- J. R. Spencer, J. A. Rathbun, L. D. Travis, L. K. Tamppari, L. Barnard, T. Z. Martin, and A. S. McEwen (2000)
Science
288, 1198-1201
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