RAT magnet experiment on the Mars Exploration Rovers: Spirit and Opportunity beyond sol 500

Kristoffer Leer, Walter Goetz, Marjorie A. Chan, Steven Gorevan, Mikkel Fougt Hansen, Christian Lundmand Jensen, Gunther Kletetschka, Alastair Kusack, Morten Bo Madsen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The Rock Abrasion Tool (RAT) magnet experiment on the Mars Exploration Rovers was designed to collect dust from rocks ground by the RAT of the two rovers on the surface of Mars. The dust collected on the magnets is now a mixture of dust from many grindings. Here the new data from the experiment are presented. The findings from Mars are furthermore compared to simulation experiments performed on Earth. New experiments with analog rocks that mainly contain hematite indicate the likely presence of a stronger magnetic phase besides hematite in the outcrop rock formations found on Meridiani Planum, a phase which was hitherto not detected by other measurements (such as Mossbauer) on these rocks.
    Original languageEnglish
    JournalJournal of Geophysical Research: Atmospheres
    Volume116
    Pages (from-to)E00F18
    ISSN2169-9380
    DOIs
    Publication statusPublished - 2011

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