Search for dissertations about: "Stellar Dynamics"
Showing result 1 - 5 of 21 swedish dissertations containing the words Stellar Dynamics.
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1. Stellar kinematics in surveys and simulations
Abstract : We study stellar motions in the Milky Way with N-body simulations and large astrometric samples from ESA's Gaia mission. We identify two kinematic populations for white dwarfs in the Solar neighbourhood. We also investigate the accreted halo and reveal two new structures. READ MORE
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2. Th Dynamics of Star Cluster Formation
Abstract : A major question in astrophysics is how star clusters form. These objects are important, since they are the birth sites of most stars, perhaps including our own Sun. READ MORE
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3. Radial Velocities Without Spectroscopy -Astrometric determination of stellar radial motion
Abstract : This work demonstrates the determination of absolute stellar radial velocities from geometrical principles, i.e. using astrometry. Such `astrometric radial velocities' are obtained independently of spectroscopic information. READ MORE
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4. Star-forming Dwarf Galaxies : Internal motions and evolution
Abstract : The study of dwarf galaxies is important in order to better understand the physics of the young universe and how larger galaxies form and evolve. In this work we focus on Blue Compact Galaxies (BCGs) which havemuch enhanced star formation (starbursts), causing blue colours and strong emission line spectra. READ MORE
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5. The Dynamics of Star Cluster Formation
Abstract : How do star clusters form? We care, since these are the birth sites of most stars, perhaps including our own Sun. There are a great variety of different theoretical models of cluster formation and our main goal in this thesis is to examine the implications of these for the dynamical evolution of a cluster's stellar population, including the ejected stars. READ MORE