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20 - Visible and Near-Infrared Spectral Analyses of Asteroids and Comets from Dawn and Rosetta

from Part IV - Applications to Planetary Surfaces

Published online by Cambridge University Press:  15 November 2019

By
M. Cristina De Sanctis ,
Fabrizio Capaccioni ,
Eleonora Ammannito  and
Gianrico Filacchione
Edited by
Janice L. Bishop ,
James F. Bell III  and
Jeffrey E. Moersch
Janice L. Bishop
Affiliation:
SETI Institute, California
James F. Bell III
Affiliation:
Arizona State University
Jeffrey E. Moersch
Affiliation:
University of Tennessee, Knoxville
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Summary

New visible and infrared data of minor bodies, including minor planet 1 Ceres, asteroids 4 Vesta, 21 Lutetia, 2867 Steins and comet 67P/Churyumov–Gerasimenko (hereafter 67P/CG) have been collected in the last years by remote sensing instruments aboard NASA-Dawn and ESA-Rosetta missions. These minor bodies are among the most primitive bodies in the Solar System, and the understanding of their composition, surface morphology and evolution history is a fundamental step to shed light on the processes that occurred during planetary formation.By merging spatial and spectral information retrieved from the surfaces of these objects it is possible to infer their composition and physical properties and to correlate them with local morphology and geological processes. A discussion about spectral indicators, modeling, and mapping is given for both asteroids and comet 67P/CG. Given that the remote sensing observation techniques are very similar between Dawn and Rosetta missions, a comparative approach is used for the entire chapter and methods and interpretation for the results of these different objects are given together.

Keywords

asteroidscometsimaging spectroscopymissionsRosettaDawnmineralogyCeresVesta67P/Churyumov–Gerasimenko
Type
Chapter
Information
Remote Compositional Analysis
Techniques for Understanding Spectroscopy, Mineralogy, and Geochemistry of Planetary Surfaces
 , pp. 413 - 427
Publisher: Cambridge University Press
Print publication year: 2019

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