FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1603711291> ?p ?o ?g. }

• W1603711291 startingPage "1966" @default.
• W1603711291 abstract "The Dawn spacecraft entered orbit around asteroid 4 Vesta in mid-July 2011. Since then, the Visible and InfraRed Imaging Spectrometer (VIR) acquired hyperspectral images of Vesta's surface in the overall wavelength range from 0.25 to 5.1 μm. During the Approach and Survey mission phases (23 July through 29 August 2011), VIR obtained resolved images of Vesta with spatial resolution between 1.31 km and 0.68 km/pix. More than 65% of the surface, from the South Pole up to ˜40°N, was observed under different illumination conditions and local solar elevations. Further data were acquired in the subsequent HAMO and LAMO phases. Based on this datasets, the Dawn Team is conducting mineralogical mapping of Vesta's surface in the form of 15 quadrangle maps. In this work we present the results of the spectroscopic analysis carried out for the quadrangle Av-10 (Oppia), spanning Vesta's latitude 22S° - 22N° and longitude 288° - 360°. Vesta is known to have a basaltic surface from visible/near-infrared reflectance spectroscopy. Although pyroxenes' spectral signatures at about 0.9 and 1.9 µm are ubiquitous on Vesta and largely dominate its surface composition, significant variability in slope, strength and wavelength position of the center of these features can be measured, which indicate multiple physical surface processes. Absorption band depth is sensitive to abundance, texture and multiple scattering effects. On the other hand, the position of the band centers is sensitive to Calcium and Magnesium abundance in pyroxenes, which is crucial to establish a link with Howardite, Eucrite and Diogenite meteorites' clan (HEDs). On the basis of several spectral indices, the surface of Vesta can be divided into different terrain types, which are mostly related to specific geological units or morphological surface features. By combining VIR channels and ratios into colour images, the presence and abundance of these materials can be revealed. Among the terrain types identified on Vesta, Copious Ejecta Terrains (CET) are the most abundant in the Av-10 quadrangle. These terrains are characterized by low reflectance in the VIS and shallow pyroxene bands, compared to Mid-Latitude Terrains (MLT). Combined with the visible albedo of Vesta's surface, the RGB composite made by using colours shows that: 1) bright material are yellow/green, 2) dark material blue/violet, and 3) spectrally distinct material (ejecta) are red/purple. In the Oppia quadrangle, some unnamed craters have ejecta showing deeper absorptions at 1.9 µm. Conversely, other small craters partly show dark ejecta, which appear blue in the Clementine ratio color composite and exhibit VIR spectra with a strongly reduced pyroxene signature. However, the most notable feature of quadrangle Av-10 is the Oppia crater (6.5°S/307.8°E), from which the quadrangle itself is named. The Oppia crater is surrounded by extended ejecta material, classified as CET. These ejecta show significant differences in pyroxenes' signatures (reduced band depths) and they can be distinguished in the above ratio color composite by their prominent red colour compared to the surrounding terrains." @default.
• W1603711291 created "2016-06-24" @default.
• W1603711291 creator A5001507932 @default.
• W1603711291 creator A5012954225 @default.
• W1603711291 creator A5026003371 @default.
• W1603711291 creator A5026936862 @default.
• W1603711291 creator A5032333471 @default.
• W1603711291 creator A5035262486 @default.
• W1603711291 creator A5043910372 @default.
• W1603711291 creator A5054657779 @default.
• W1603711291 creator A5055554187 @default.
• W1603711291 creator A5058498275 @default.
• W1603711291 creator A5064003977 @default.
• W1603711291 creator A5066796274 @default.
• W1603711291 creator A5069582259 @default.
• W1603711291 creator A5072188855 @default.
• W1603711291 creator A5079959308 @default.
• W1603711291 creator A5086731594 @default.
• W1603711291 creator A5089600760 @default.
• W1603711291 date "2012-03-01" @default.
• W1603711291 modified "2023-09-23" @default.
• W1603711291 title "Compositional mapping of Vesta quadrangle V-23" @default.
• W1603711291 hasPublicationYear "2012" @default.
• W1603711291 type Work @default.
• W1603711291 sameAs 1603711291 @default.
• W1603711291 citedByCount "0" @default.
• W1603711291 crossrefType "journal-article" @default.
• W1603711291 hasAuthorship W1603711291A5001507932 @default.
• W1603711291 hasAuthorship W1603711291A5012954225 @default.
• W1603711291 hasAuthorship W1603711291A5026003371 @default.
• W1603711291 hasAuthorship W1603711291A5026936862 @default.
• W1603711291 hasAuthorship W1603711291A5032333471 @default.
• W1603711291 hasAuthorship W1603711291A5035262486 @default.
• W1603711291 hasAuthorship W1603711291A5043910372 @default.
• W1603711291 hasAuthorship W1603711291A5054657779 @default.
• W1603711291 hasAuthorship W1603711291A5055554187 @default.
• W1603711291 hasAuthorship W1603711291A5058498275 @default.
• W1603711291 hasAuthorship W1603711291A5064003977 @default.
• W1603711291 hasAuthorship W1603711291A5066796274 @default.
• W1603711291 hasAuthorship W1603711291A5069582259 @default.
• W1603711291 hasAuthorship W1603711291A5072188855 @default.
• W1603711291 hasAuthorship W1603711291A5079959308 @default.
• W1603711291 hasAuthorship W1603711291A5086731594 @default.
• W1603711291 hasAuthorship W1603711291A5089600760 @default.
• W1603711291 hasConcept C114793014 @default.
• W1603711291 hasConcept C121332964 @default.
• W1603711291 hasConcept C122523270 @default.
• W1603711291 hasConcept C127313418 @default.
• W1603711291 hasConcept C1276947 @default.
• W1603711291 hasConcept C13280743 @default.
• W1603711291 hasConcept C27258493 @default.
• W1603711291 hasConcept C2780554747 @default.
• W1603711291 hasConcept C58142911 @default.
• W1603711291 hasConcept C62649853 @default.
• W1603711291 hasConceptScore W1603711291C114793014 @default.
• W1603711291 hasConceptScore W1603711291C121332964 @default.
• W1603711291 hasConceptScore W1603711291C122523270 @default.
• W1603711291 hasConceptScore W1603711291C127313418 @default.
• W1603711291 hasConceptScore W1603711291C1276947 @default.
• W1603711291 hasConceptScore W1603711291C13280743 @default.
• W1603711291 hasConceptScore W1603711291C27258493 @default.
• W1603711291 hasConceptScore W1603711291C2780554747 @default.
• W1603711291 hasConceptScore W1603711291C58142911 @default.
• W1603711291 hasConceptScore W1603711291C62649853 @default.
• W1603711291 hasIssue "1659" @default.
• W1603711291 hasLocation W16037112911 @default.
• W1603711291 hasOpenAccess W1603711291 @default.
• W1603711291 hasPrimaryLocation W16037112911 @default.
• W1603711291 hasRelatedWork W1174390093 @default.
• W1603711291 hasRelatedWork W1612925845 @default.
• W1603711291 hasRelatedWork W1623376662 @default.
• W1603711291 hasRelatedWork W1632427509 @default.
• W1603711291 hasRelatedWork W1644627841 @default.
• W1603711291 hasRelatedWork W1649943219 @default.
• W1603711291 hasRelatedWork W1863094228 @default.
• W1603711291 hasRelatedWork W2011340664 @default.
• W1603711291 hasRelatedWork W2093944371 @default.
• W1603711291 hasRelatedWork W2098443069 @default.
• W1603711291 hasRelatedWork W2106778018 @default.
• W1603711291 hasRelatedWork W2134174728 @default.
• W1603711291 hasRelatedWork W2145927830 @default.
• W1603711291 hasRelatedWork W2287762304 @default.
• W1603711291 hasRelatedWork W2528560406 @default.
• W1603711291 hasRelatedWork W268240702 @default.
• W1603711291 hasRelatedWork W3082040517 @default.
• W1603711291 hasRelatedWork W3098431898 @default.
• W1603711291 hasRelatedWork W335781212 @default.
• W1603711291 hasRelatedWork W803067872 @default.
• W1603711291 isParatext "false" @default.
• W1603711291 isRetracted "false" @default.
• W1603711291 magId "1603711291" @default.
• W1603711291 workType "article" @default.