dc.contributor.author
Maturilli, Alessandro
dc.contributor.author
Schwinger, Sabrina
dc.contributor.author
Bonato, Enrica
dc.contributor.author
Helbert, Jörn
dc.contributor.author
Baqué, Mickael
dc.contributor.author
Hamm, Maximilian
dc.contributor.author
Alemanno, Giulia
dc.contributor.author
D’Amore, Mario
dc.date.accessioned
2022-12-02T15:29:16Z
dc.date.available
2022-12-02T15:29:16Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/36908
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-36621
dc.description.abstract
In 2022 JAXA issued an Announcement of Opportunity (AO) for receiving Hayabusa2 samples returned to Earth. We responded to the AO submitting a proposal based on using a multi-prong approach to achieve two main goals. The first goal is to address the subdued contrast of remote-sensing observations compared to measurements performed under laboratory conditions on analog materials. For this we will link the hyperspectral and imaging data collected from the spacecraft and the in-situ observations from the MASCOT lander instruments (MARA and MASCam) with laboratory-based measurements of Hayabusa2 samples using bi-directional reflectance spectroscopy under simulated asteroid surface conditions from UV to MIR/FIR achieved using three Bruker Vertex 80 V spectrometers in the Planetary Spectroscopy Laboratory. The second goal is the investigation of the mineralogy and organic matter of the samples collected by Hayabusa2, to better understanding the evolution of materials characterizing Ryugu and in general of protoplanetary disk and organic matter, investigating the aqueous alteration that took place in the parent body, and comparing the results with data collected from pristine carbonaceous chondrite analog meteorites. Spectral data will be complemented by Raman spectroscopy under simulated asteroid surface conditions, X-ray diffraction, would also allow us to define the bulk mineralogy of the samples as well as investigate the presence and nature of organic matter within the samples. In situ mineralogical and geochemical characterization will involve a pre-characterization of the sample fragments through scanning electron microscopy low voltage electron dispersive X-ray (EDX) maps, and micro IR analyses of the fragments. If allowed, a thin section of one grain will be used for electron microprobe analyses to geochemically characterize its mineralogical composition. To train our data collection and analysis methods on a realistic sample, we selected a piece of the Mukundpura meteorite, as one of the closer analogs to Ryugu’s surface (Ray et al., Planetary and Space Science, 2018, 151, 149–154). The Mukundpura chunk we selected for this study measures 3 mm in its maximum dimension, and we chose it so to have a test sample of the same size as the Hayabusa2 grain we requested in our proposal to JAXA’s AO. The test gave us confidence that we can measure with good SNR measurements in bi-directional reflectance for samples around 3 mm in size (see Figures 3, 4 below). To address our second goal the spectral data was complemented by Raman spectroscopy measured again under simulated asteroid surface conditions in our Raman Mineralogy and Biodetection Laboratory at DLR.
en
dc.format.extent
9 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
remote sensing
en
dc.subject
spectroscopy
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::520 Astronomie::520 Astronomie und zugeordnete Wissenschaften
dc.title
Linking remote sensing, in situ and laboratory spectroscopy for a Ryugu analog meteorite sample
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
1023393
dcterms.bibliographicCitation.doi
10.3389/frspt.2022.1023393
dcterms.bibliographicCitation.journaltitle
Frontiers in Space Technologies
dcterms.bibliographicCitation.originalpublishername
Frontiers Media S.A.
dcterms.bibliographicCitation.volume
3 (2022)
dcterms.bibliographicCitation.url
https://doi.org/10.3389/frspt.2022.1023393
refubium.affiliation
Geowissenschaften
refubium.affiliation.other
Institut für Geologische Wissenschaften / Fachrichtung Planetologie und Fernerkundung
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refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
2673-5075
refubium.resourceType.provider
DeepGreen