<div class="csl-bib-body">
<div class="csl-entry">Szabo, P. S., Poppe, A. R., Biber, H. A., Mutzke, A., Pichler J., Jäggi, N., Galli, A., Wurz, P., & Aumayr, F. (2022). Deducing Lunar Regolith Porosity From Energetic Neutral Atom Emission. <i>Geophysical Research Letters</i>, <i>49</i>(21), 1–10. https://doi.org/10.1029/2022GL101232</div>
</div>
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dc.identifier.issn
0094-8276
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/119907
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dc.description.abstract
The porosity of the upper layers of regolith is key to the interaction of an airless planetary body
with precipitating radiation, but it remains difficult to characterize. One of the effects that is governed by
regolith properties is Energetic Neutral Atom (ENA) emission in the form of reflected and neutralized solar
wind protons. We simulate this process for the surface of the Moon by implementing a regolith grain stacking
in the ion-solid-interaction software SDTrimSP-3D, finding that proton reflection significantly depends on the
regolith porosity. Via comparison with ENA measurements by Chandrayaan-1, we derive a globally averaged
porosity of the uppermost regolith lay𝐴𝐴ers of 0.85+0.15−0.14. These results indicate a highly porous, fairy-castlelike
nature of the upper lunar regolith, as well as its importance for the interaction with impacting ions. Our simulations further outline the possibility of future regolith studies with ENA measurements, for example, by the BepiColombo mission to Mercury.
en
dc.language.iso
en
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dc.publisher
American Geophysical Union
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dc.relation.ispartof
Geophysical Research Letters
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dc.subject
neutral atom emission
en
dc.subject
simulation
en
dc.subject
lunar regolith porosity
en
dc.title
Deducing Lunar Regolith Porosity From Energetic Neutral Atom Emission
en
dc.type
Article
en
dc.type
Artikel
de
dc.contributor.affiliation
E134-03
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dc.description.startpage
1
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dc.description.endpage
10
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dcterms.dateSubmitted
2022-09-09
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dc.type.category
Original Research Article
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tuw.container.volume
49
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tuw.container.issue
21
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tuw.journal.peerreviewed
true
-
tuw.peerreviewed
true
-
tuw.researchTopic.id
M2
-
tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.value
100
-
tuw.linking
https://doi.org/10.1029/2022GL101232
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dcterms.isPartOf.title
Geophysical Research Letters
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tuw.publication.orgunit
E134-03 - Forschungsbereich Atomic and Plasma Physics
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tuw.publisher.doi
10.1029/2022GL101232
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dc.date.onlinefirst
2022-10-19
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dc.identifier.eissn
1944-8007
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dc.description.numberOfPages
10
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tuw.author.orcid
0000-0002-7478-7999
-
tuw.author.orcid
0000-0001-8137-8176
-
tuw.author.orcid
0000-0002-9854-2056
-
tuw.author.orcid
0000-0002-2740-7965
-
tuw.author.orcid
0000-0003-2425-3793
-
tuw.author.orcid
0000-0002-2603-1169
-
tuw.author.orcid
0000-0002-9788-0934
-
wb.sci
true
-
wb.sciencebranch
Physik, Astronomie
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wb.sciencebranch.oefos
1030
-
wb.sciencebranch.value
100
-
item.openairetype
Article
-
item.openairetype
Artikel
-
item.grantfulltext
restricted
-
item.cerifentitytype
Publications
-
item.cerifentitytype
Publications
-
item.languageiso639-1
en
-
item.openairecristype
http://purl.org/coar/resource_type/c_18cf
-
item.openairecristype
http://purl.org/coar/resource_type/c_18cf
-
item.fulltext
no Fulltext
-
crisitem.author.dept
E134-03 - Forschungsbereich Atomic and Plasma Physics
-
crisitem.author.dept
E207 - Institut für Werkstofftechnologie, Bauphysik und Bauökologie
-
crisitem.author.dept
E134-03 - Forschungsbereich Atomic and Plasma Physics