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 6 of 6 for “"Stellar Velocity"”.
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Constraints on early-type galaxy structure from spectroscopically selected gravitational lenses
… normalization between isothermal lens-model velocity dispersions and aperture-corrected SDSS stellar velocity dispersions of ... By combining lens-model Einstein radii and de Vaucouleurs effective radii with stellar velocity dispersions through the Jeans equation, we find that the logarithmic …
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MINERVA-RED: A TELESCOPE DEDICATED TO THE DISCOVERY OF NEARBY PLANETS
… that are used to detect exoplanets through these stellar velocity variations have improved, progressively less massive planets have been detected. Over the next decade, a key goal in the field is to develop instruments capable of detecting an Earth-mass planet orbiting a Sun-like star with a …
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Formation and dynamics of the Galactic disc and halo
… effects of the Sagittarius Dwarf Galaxy (Sgr) on stellar streams produced by tidally disrupting globular clusters, with a focus on the GD-1 stream. This reveals a plethora of perturbations that may result from interactions with a massive Sgr, including asymmetry and folding of the tails. In …
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The relationship between the morphology and kinematics of galaxies and its dependence on dark matter halo structure in simulated galaxies
… were calibrated to ensure that the observed stellar masses and sizes of present-day galaxies were reproduced. We investigate the connection between the morphology and internal kinematics of the stellar component of central galaxies with mass M* > 10^9.5 Msun in the EAGLE simulations. We …
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Demographics of supermassive black holes
… of the galaxy's spheroid component, like its stellar velocity dispersion, luminosity or mass. Understanding this relationship and the growth of SMBHs is essential for our picture of galaxy formation and evolution. In this thesis, I make several contributions to improve our knowledge on the …
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Development and Testing of a New Method for Velocity-Selecting White Dwarfs from Gaia by Galactic Population
… details our approach to age-dating the galaxy, velocity-selecting targets from a sample of white dwarfs from the Gaia DR3 catalog that have also been age-analysed using BASE-9. BASE-9 uses photometry, as well as prior measurements and values from ancillary data, such as trigonometric parallaxes, …