Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Giant Impacts"”.
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Carbon Chemistry Of Giant Impacts
Impact diamonds were found in several impactites from the Ries crater, Germany including fallout and fallback (crater fill) suevites. a glass bomb, impact melt rock and shocked gneiss. These diamonds formed two distinct grain size populations: 50-300µm apographitic. platy aggregates with surface …
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Planet formation and evolution in our Solar System and beyond
… comprising several percent of the planet's mass. Giant impacts are expected to play a role in the formation of these worlds.
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Probing planetary system histories via observations, experiments, and modelling of circumstellar gas and dust
… observations of the system is that of a giant impact; the CO gas is likely the remnant of a stripped planetary atmosphere, while the dust is debris produced in the collision. These observations provide evidence for giant impacts in systems other than our own. The third approach simulates …
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Impact modification of Mercury's mantle composition
… support for the hypothesis that one or more giant impacts stripped away a significant proportion of proto-Mercury's silicate mantle. Previous investigations demonstrate sufficient removal of mantle material to account for the planets unusually high mean density, but do not consider the …
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The effect of bombardment of small bodies on the evolution of atmospheres of terrestrial bodies
… of diversity in their mass and composition. Impacts onto these bodies by smaller objects, such as asteroids, comets and planetesimals left over after terrestrial planet formation are evidenced by crater observations, and are an inevitable outcome of dynamical simulations of planet and moon …
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On the Application of Machine Learning to Planetary Sciences
Today, the most pressing scientific and engineering problems are typically nonlinear, dynamic, and multidimensional in space and time. To capture such complexity, researchers of every discipline are progressively adopting machine learning algorithms which model physical phenomena and interpret …
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The formation and evolution of planetary systems
… during the core assembly process via giant impacts. We find that envelope masses accreted from the gas disc by planetary embryos are typically much smaller than those inferred for many exoplanets, and that the envelope mass fraction is further reduced substantially during the assembly …