Search for dissertations about: "Galaxy: centre"
Showing result 1 - 5 of 19 swedish dissertations containing the words Galaxy: centre.
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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. Clues to galaxy evolution from spectroscopic observations of Galactic centre stars
Abstract : In this work we present results from spectroscopic observations of Galactic centre stars. High resolution stellar spectroscopy can be used to determine accurate stellar metallicities and abundances. Observing stars in the Galactic centre is challenging due to extreme extinction. READ MORE
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3. Studies of molecular clouds at the Galactic centre
Abstract : Interstellar molecular clouds play an essential role in the Universe. Such clouds are invoked for the production and destruction of stars, galaxies and gas and also for energy transport in galaxies. READ MORE
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4. Theoretical Studies of Binaries in Astrophysics
Abstract : This thesis introduces and summarizes four papers dealing with computer simulations of astrophysical processes involving binaries. The first part gives the rational and theoretical background to these papers. In paper I and II a statistical approach to studying eclipsing binaries is described. READ MORE
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5. 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