The structure of the asteroid 4 Vesta as revealed by models of planet-scale collisions

@article{Jutzi2013TheSO,
  title={The structure of the asteroid 4 Vesta as revealed by models of planet-scale collisions},
  author={M. Jutzi and E. Asphaug and P. Gillet and J. Barrat and W. Benz},
  journal={Nature},
  year={2013},
  volume={494},
  pages={207-210}
}
Asteroid 4 Vesta seems to be a major intact protoplanet, with a surface composition similar to that of the HED (howardite–eucrite–diogenite) meteorites. The southern hemisphere is dominated by a giant impact scar, but previous impact models have failed to reproduce the observed topography. The recent discovery that Vesta’s southern hemisphere is dominated by two overlapping basins provides an opportunity to model Vesta’s topography more accurately. Here we report three-dimensional simulations… Expand
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Composition of the northern regions of Vesta analyzed by the Dawn mission
Abstract The surface composition of the northern regions of Vesta, observed by the Dawn spacecraft, offers the possibility to test several hypotheses related to impact-related processes. We usedExpand
Olivine in an unexpected location on Vesta’s surface
TLDR
It is reported that olivine is indeed present locally on Vesta’s surface but that, unexpectedly, it has not been found within the deep, south-pole basins, which are thought to be excavated mantle rocks. Expand
Constraints on Vesta's Interior Structure Using Gravity and Shape Models from the Dawn Mission
Abstract We use the shape and gravity field of Vesta determined from observations of the Dawn spacecraft to place constraints on the asteroid’s interior structure. We compute a three-layer interiorExpand
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References

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TLDR
Dawn observations confirm that Vesta is a small differentiated planetary body with an inner core, and represents a surviving proto-planet from the earliest epoch of solar system formation, and presents the mineralogical characterization of Vesta, revealing that this asteroid underwent a complex magmatic evolution that led to a differentiated crust and mantle. Expand
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[1] Asteroid 4 Vesta, sometimes called the “smallest terrestrial planet”, will be orbited next July by NASA's Dawn mission. This will be the first time a small planet is visited by a spacecraft, andExpand
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TLDR
Dawn’s global mapping of Vesta reveals that its observed south polar depression is composed of two overlapping giant impact features, which provide exceptional windows into impact processes at planetary scales, and spacecraft data provide a detailed characterization of the second most massive asteroid in the solar system. Expand
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TLDR
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TLDR
The mineralogy of Vesta, based on data obtained by the Dawn spacecraft’s visible and infrared spectrometer, is consistent with howardite-eucrite-diogenite meteorites, which suggests a complex magmatic evolution that led to a differentiated crust and mantle. Expand
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TLDR
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TLDR
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TLDR
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— The compelling petrographic link (Consolmagno and Drake, 1977; Gaffey, 1983) between basaltic achondrite meteorites and the ∼530 km diameter asteroid 4 Vesta has been tempered by a perceivedExpand
Impact excavation on Asteroid 4 Vesta: Hubble Space Telescope results
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