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 “"Galactic Archaeology"”.
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Galactic Archaeology with Gaia
… accreted/merged in the past, and so has "extragalactic" origin. Such formation process will leave dynamical traces imprinted in the halo, like stellar substructures, distinguishable from the in-situ halo component. Studying the present-day structure and substructures of the Milky Way halo is …
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Mapping the Ancient Milky Way and its Relic Dwarf Galaxies
… The study of these objects is known as Galactic Archaeology, and has led to significant advances in our understanding of the first stars, supernovae, and galaxies. However, the most primitive, metal-poor stars are rare, and the difficulty of discovering them continues to bottleneck this …
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Chemodynamics of the Galactic Halo
… science, which is now commonly referred to as Galactic Archaeology. Chapter 1 introduces all the core concepts necessary to understanding the science and results presented in this thesis. This includes a brief introduction to general galaxy formation, an overview of the Milky Way, an …
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Disentangling the chemodynamical history of the Milky Way disc with asteroseismology and spectroscopy
… and galaxies in general, the big-data era of Galactic astronomy also confronts us with new observational, theoretical, and computational challenges. This thesis aims at finding new observational constraints to test Milky-Way models, primarily based on infra-red spectroscopy from the Apache …
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Formation and dynamics of the Galactic disc and halo
… 1 I give an overview of the principles of Galactic dynamics which form the foundation of this thesis. I proceed to outline past research into Galactic archaeology in the Milky Way, including studies into its substructure, evolution and accretion history. Chapter 2 is a study of the …
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Tracer populations in the local group
So often in astronomy, an object is not considered for its individual merits, but for what we may learn from its properties regarding some larger population. The existence of dark matter is a prime example of this; we cannot see it directly but we can infer its presence by noting its effects on the …
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Development and Testing of a New Method for Velocity-Selecting White Dwarfs from Gaia by Galactic Population
… the earliest epochs of star formation in each Galactic population. Gaia astrometry provides us with proper motions of these stars, though not radial velocities. We have developed a scheme to complete the velocity vector by estimating radial velocities in terms of the proper motion, and …