Search for dissertations about: "Galaxy: halo"
Showing result 1 - 5 of 21 swedish dissertations containing the words Galaxy: halo.
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1. Stellar Ages for Galactic Archaeology : Methods and Applications
Abstract : Galactic Archaeology is the study of the formation and evolution of the Milky Way through the properties of stars and stellar populations. The combination of stellar ages, chemical compositions, positions, and velocities can reveal the history of star formation and chemical enrichment in different regions of the Galaxy. READ MORE
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2. Photometry of Resolved Stellar Populations in Local Group Galaxies
Abstract : This thesis presents results from two projects using photometric observations to investigate stellar populations in Local Group galaxies. In the first project, Strömgren photometry is used to study stellar populations in dwarf spheroidal galaxies. READ MORE
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3. The spatial distribution of Lyman alpha from star-forming galaxies in the low redshift Universe
Abstract : The Lyman alpha (Lyα) emission line from the recombination of hydrogen atoms is predicted to be the strongest spectral feature of galaxies. This emission line is regularly used to detect and characterise high redshift galaxies. However, studying this spectral line is challenging. READ MORE
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4. Dark Matter in the Solar System, Galaxy, and Beyond
Abstract : There is evidence that dark matter constitutes a majority of the Universe's matter content. Yet, we are ignorant about its nature. Understanding dark matter requires new physics, possibly in the form of a new species of fundamental particles. READ MORE
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5. Investigating the Dark Universe through Gravitational Lensing
Abstract : A variety of precision observations suggest that the present universe is dominated by some unknown components, the so-called dark matter and dark energy. The distribution and properties of these components are the focus of modern cosmology and we are only beginning to understand them. READ MORE