Please use this identifier to cite or link to this item: http://hdl.handle.net/10125/62253

SIMULATED SPACE WEATHERING OF PLANETARY SURFACES

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Item Summary

Title:SIMULATED SPACE WEATHERING OF PLANETARY SURFACES
Authors:Crandall, Parker Brian
Contributors:Kaiser, Ralf I. (advisor)
Chemistry (department)
Keywords:Physical chemistry
Planetology
Astrophysics
Airless Bodies
Astrochemistry
show 3 morePlanetary Surfaces
Solar Wind
Space Weathering
show less
Date Issued:Dec 2018
Publisher:University of Hawaiʻi at Mānoa
Abstract:Remote sensing data and laboratory simulation experiments have demonstrated the dramatic effects space weathering of planetary bodies can have to alter the chemical makeup of planetary surfaces. The dominant weathering processes are affected by the presence of an atmosphere, which effectively shields ionizing radiation in the form of solar wind and micrometeorite impacts. Here, novel laboratory experiments simulating the effects of space weathering agents on the surface of Mars and the Moon are presented. The results aim to assist in the ongoing investigations of three important discoveries made over the last few decades: First, the apparent lack of exogenic organic molecules on Mars, second, the generation of H2 molecules in the lunar exosphere, and third, the presence of surficial hydroxyl (–OH) groups bound in lunar minerals and exposed water ice deposits at the lunar poles. The systematic approach of these experiments provides important mechanistic details towards the formation of radiogenic molecules on these planetary bodies. In addition, they can be extended to similar environments throughout the Solar System.
Description:M.S. Thesis. University of Hawaiʻi at Mānoa 2018.
Pages/Duration:148 pages
URI:http://hdl.handle.net/10125/62253
Rights:All UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
Appears in Collections: M.S. - Chemistry


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