Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/25953
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Denevi, Brett W. | en_US |
dc.contributor.author | Beck, Andrew W. | en_US |
dc.contributor.author | Coman, Ecaterina I. | en_US |
dc.contributor.author | Thomson, Bradley J. | en_US |
dc.contributor.author | AMMANNITO, ELEONORA | en_US |
dc.contributor.author | Blewett, David T. | en_US |
dc.contributor.author | Sunshine, Jessica M. | en_US |
dc.contributor.author | DE SANCTIS, MARIA CRISTINA | en_US |
dc.contributor.author | Li, Jian-Yang | en_US |
dc.contributor.author | Marchi, Simone | en_US |
dc.contributor.author | Mittlefehldt, David W. | en_US |
dc.contributor.author | Petro, Noah E. | en_US |
dc.contributor.author | Raymond, Carol A. | en_US |
dc.contributor.author | Russell, Christopher T. | en_US |
dc.date.accessioned | 2020-06-08T10:56:11Z | - |
dc.date.available | 2020-06-08T10:56:11Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 1086-9379 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/25953 | - |
dc.description.abstract | We investigate the depth, variability, and history of regolith on asteroid Vesta using data from the Dawn spacecraft. High-resolution (15-20 m pixel<SUP>-1</SUP>) Framing Camera images are used to assess the presence of morphologic indicators of a shallow regolith, including the presence of blocks in crater ejecta, spur-and-gully-type features in crater walls, and the retention of small (<300 m) impact craters. Such features reveal that the broad, regional heterogeneities observed on Vesta in terms of albedo and surface composition extend to the physical properties of the upper 1 km of the surface. Regions of thin regolith are found within the Rheasilvia basin and at equatorial latitudes from 0-90°E and 260-360°E. Craters in these areas that appear to excavate material from beneath the regolith have more diogenitic (Rheasilvia, 0-90°E) and cumulate eucrite (260-360°E) compositions. A region of especially thick regolith, where depths generally exceed 1 km, is found from 100-240°E and corresponds to heavily cratered, low-albedo surface with a basaltic eucrite composition enriched in carbonaceous chondrite material. The presence of a thick regolith in this area supports the idea that this is an ancient terrain that has accumulated a larger component of exogenic debris. We find evidence for the gardening of crater ejecta toward more howarditic compositions, consistent with regolith mixing being the dominant form of "weathering" on Vesta. | en_US |
dc.language.iso | eng | en_US |
dc.title | Global variations in regolith properties on asteroid Vesta from Dawn's low-altitude mapping orbit | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1111/maps.12729 | en_US |
dc.identifier.scopus | 2-s2.0-84988584685 | en_US |
dc.identifier.isi | 000393138200007 | en_US |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/full/10.1111/maps.12729 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 51 | en_US |
dc.relation.issue | 12 | en_US |
dc.relation.firstpage | 2366 | en_US |
dc.type.referee | REF_1 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | METEORITICS & PLANETARY SCIENCE | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2016M&PS...51.2366D | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_2 Planetary systems sciences | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | reserved | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | IAPS Roma | - |
crisitem.author.orcid | 0000-0002-3463-4437 | - |
crisitem.journal.journalissn | 1086-9379 | - |
crisitem.journal.ance | E109336 | - |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
File in questo documento:
File | Descrizione | Dimensioni | Formato | Existing users please |
---|---|---|---|---|
Denevi_et_al-2016-Meteoritics_&_Planetary_Science.pdf | [Administrators only] | 2.44 MB | Adobe PDF |
Page view(s)
50
controllato il 26-apr-2024
Download(s)
2
controllato il 26-apr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Tutti i documenti in DSpace sono pubblicati ad Accesso Aperto, salvo diversa indicazione per alcuni documenti specifici.