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 11 of 11 for “"External Galaxies"”.
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Accreted Globular Clusters in External Galaxies: Why Adaptive Dynamics won’t work
… potential. Globular clusters (GCs) surrounding galaxies can be used as dynamical tracers of the luminous and dark matter distribution at large (kpc) scales. This M.Sc. project investigates - by means of the Auriga galaxy simulations and in anticipation of high-resolution IFU data of external …
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An astrophysical investigation of four classical cepheid variable stars
… with the fact that they can be observed in external galaxies has made them exceedingly useful in this way.
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An astrophysical investigation of four classical cepheid variable stars
… with the fact that they can be observed in external galaxies has made them exceedingly useful in this way.
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Understanding massive disk galaxy formation through resolved stellar populations
… the individual history of six nearby disk galaxies outside the Local Group. A New Calibration of the Color Metallicity Relation of Red Giants for HST data: It is well known, that the color distribution of stars on the the Red Giant Branch (RGB) can be used to determine metallicities of old …
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The spatial distribution of metals in disc galaxies, via simulations and observations
… thesis we are interested in the evoluNon of disc galaxies. One of the most common ways to study it is by a deep analysis of the distribuNon of chemical abundances in the stellar populaNons of the disc component. Abundance gradients let us reconstruct the puzzle of the formaNon and evoluNon of this …
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EVLA imaging of methanimine and hydrogen cyanide in Arp 220
… to be excited in active star forming regions in external galaxies. The western nucleus is known to have undergone an intense starburst, and we conclude that the \meth\ maser is being amplified in the foreground gas along the line of sight to the western nucleus by the background continuum of the …
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Tracer populations in the local group
… be used to probe the properties of a variety of galaxies in the Local Group. I begin by describing the extraction of a variable catalogue from the Sloan Digital Sky Survey Stripe 82 dataset and then use the catalogue to select a high-quality set of RR Lyrae stars. Analysing the distribution of …
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The Mass-Pitch Angle Relation for Three High Redshift Active Galaxies Selected from the GOODS Field
… gravitational wells at the center of all galaxies. These supermassive black holes at a galaxies nucleus formed in the company of the other features making up the galaxy, particularly spiral arms. With nearby galaxies showing a relationship between the spiral arm pitch angle and that …
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Dark Matter Halo Concentration and the Evolution of Spiral Structure in N-Body, Barred Spiral Galaxies
… halo) in N-body simulations of barred, spiral galaxies. We also look at the evolution of pitch angle over time in higher temporal resolution than any data currently available in the literature. We find that pitch angle structure is recurring, the overall distribution staying within a relatively …
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A Spectrum of Light: Speculative Poetry of Celestial Bodies and Astrophysics
<p>This is a collection of speculative poetry with a focus on celestial objects within our solar system and larger bodies outside of our solar system, some of which are only theorized to exist. The author finishes the collection with introspective works, laying bare vulnerabilities and …
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CONTIGO Y LAS ESTRELLAS
<p><em>contigo y las estrellas</em> is the first book of two in this series. Book one journeys through time with the main protagonist, Lucia, who happens upon her partner’s time travel watch. Her relationship to her mother launches her into a whirlwind of events that lead her to seeing her past in …