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dc.contributor.author | Hess M. | |
dc.contributor.author | Wöhler C. | |
dc.contributor.author | Bhatt M. | |
dc.contributor.author | Berezhnoy A.A. | |
dc.contributor.author | Grumpe A. | |
dc.contributor.author | Wohlfarth K. | |
dc.contributor.author | Bhardwaj A. | |
dc.contributor.author | Shevchenko V.V. | |
dc.date.accessioned | 2021-02-24T20:31:41Z | |
dc.date.available | 2021-02-24T20:31:41Z | |
dc.date.issued | 2020 | |
dc.identifier.issn | 0004-6361 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/160718 | |
dc.description.abstract | © ESO 2020. We investigated six bright swirls associated with magnetic anomalies of variable strength using Chandrayaan-1 Moon Mineralogy Mapper (M3) hyperspectral image data. We examined the 3 μm absorption band generally ascribed to solar wind-induced OH/H2O and spectral trends in the near-infrared wavelength range at on-swirl and off-swirl locations. We found that the 3 μm absorption band is weaker at on-swirl than at off-swirl locations and shows only weak variations with time-of-day. This result is consistent with magnetic anomaly shielding that reduces solar wind interaction with the surface. For a small swirl structure in Mare Moscoviense, we found the 3 μm absorption band to be similar to that of its surroundings due to the absence of strong magnetic shielding. Our spectral analysis results at on-swirl and off-swirl locations suggest that the spectral trends at on-swirl and off-swirl locations cannot always be explained by reduced space-weathering alone. We propose that a combination of soil compaction possibly resulting from the interaction between the surface and cometary gas and subsequent magnetic shielding is able to explain all observed on-swirl vs. off-swirl spectral trends including the absorption band depth near 3 μm. Our results suggest that an external mechanism of interaction between a comet and the uppermost regolith layer might play a significant role in lunar swirl formation. | |
dc.relation.ispartofseries | Astronomy and Astrophysics | |
dc.subject | Methods: data analysis | |
dc.subject | Moon | |
dc.subject | Planets and satellites: surfaces | |
dc.subject | Radiative transfer | |
dc.subject | Solid state: volatile | |
dc.subject | Techniques: imaging spectroscopy | |
dc.title | Processes governing the VIS/NIR spectral reflectance behavior of lunar swirls | |
dc.type | Article | |
dc.relation.ispartofseries-volume | 639 | |
dc.collection | Публикации сотрудников КФУ | |
dc.source.id | SCOPUS00046361-2020-639-SID85087924920 |