E-Dissertationen: Suche
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Stellar populations in gravitationally bound systems
(2020-08-21)
The understanding of how, which, where and when stars form provides important information for the vast majority of astronomical fields. Star-formation has a complex multi-scale physical nature. Stars form in dense sub-parsec ...
Studying Galaxy-Galaxy Lensing and Higher-Order Galaxy-Mass Correlations Using the Halo Model
(2009-06-22)
In recent years, the distribution of galaxies in the Universe could be measured up to large distances and over a significant part of the sky. The analysis of this large-scale structure contains a wealth of cosmological ...
Application of photometric redshifts on the correlation properties of galaxies and matter
(2007)
In the past years cosmology, the science of the universe as a whole, has seen tremendous progress. The Lambda-Cold-Dark-Matter scenario is widely accepted as the standard model of cosmology describing the evolution of the ...
From star formation to regional distribution: Influences on the embedded cluster mass function
(2021-07-02)
In this work we study the embedded cluster mass function (ECMF), meaning the mass distribution
function of embedded clusters. Embedded clusters are fully or partially enclosed in interstellar gas,
dust and molecular ...
Weak Gravitational Lensing and Galaxy Bias
(2005)
Galaxies were formed from primordial baryonic matter within the gravitational potential of the dark matter. Today a confusing wealth of different galaxy populations is known. Explaining the emergence of this zoo of galaxy ...
Grand-Design Warps in Galactic Disks
(2006)
Warping, a bending of the disk, is present in all disk galaxies. It is hence a phenomenon that should not be missed to be explained in theories of galactic evolution and formation. Warps usually occur at radii where the ...
Exploring Dark Matter Properties from the Smallest to the Largest Scales
(2004)
One of the main problems in cosmology is to understand the formation and evolution of galaxies, galaxy clusters, and large-scale structure. Whereas the basics of the current Cold Dark Matter (CDM) paradigm for structure ...
A Unified Formation Scenario for the Zoo of Extended Star Clusters and Ultra-Compact Dwarf Galaxies
(2014-07-18)
In the last decade, very extended old stellar clusters, which cover a large mass range, have been found in various types of galaxies in different environments. Objects with masses comparable to normal globular clusters ...
Dark matter halos of galaxies studied with weak gravitational lensing
(2003)
The main goal of this thesis is to investigate the dark matter halos of galaxies. Current theories of galaxy formation predict that galaxies are embedded in large dark matter halos with much larger extents than the visible ...