E-Dissertationen: Suche
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Far-infrared-to-centimeter-wave spectroscopicobservations of Planck-selected starburst galaxies
(2021-03-15)
Star-formation processes in the early Universe have had a dramatic influence on the further development of galaxies. The peak era for stellar production occurred in early cosmic times, and most of the stars that could have ......
Modelling redshift-space distortion effects on spatial clustering and velocity statistics
(2020-10-08)
The nature of gravity as we know is that it pulls. Issac Newton's Principia generalised this gravity as a universal attractive force which weakens with distance. However in the late 1990s it was found that our Universe is ......
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 ...
Weak lensing shape measurement calibration studying effects of stronger shears and cluster contamination for the mass estimation of relaxed galaxyclusters
(2020-09-25)
Weak lensing measurements suffer from well-known shear estimation biases, which can be partially corrected for with the use of image simulations. In this work we present an analysis of simulated images that mimick observations ...
From galaxies to the cosmic web and back: the interplay of different scales in galaxy formation and cosmic reionization
(2020-10-08)
The evolution of the Universe is primarily governed by gravity, that triggers the development of a complex web-like distribution of galaxies. The latter are embedded in larger structures, called haloes, mainly composed by ...
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 ...
The structure of massive star-forming clumps
(2021-11-25)
Among many other critical questions in astrophysics, the high-mass star formation process is a matter of heated debate; so far a comprehensive understanding is lacking. Star formation takes place in cold molecular clouds. ...
Testing models of galaxy formation and evolution with galaxy-galaxy-galaxy lensing
(2021-03-29)
Explaining the formation and evolution of galaxies is a fundamental issue in modern astronomy. Several competing models try to explain how galaxies form and predict the relationship between galaxies and dark matter. A ...
Weak lensing magnification & baryon acoustic oscillations in galaxy-galaxy lensing
(2021-09-08)
Cosmology is the science that aims to explain the Universe in its entirety. While the standard cosmological model has had tremendous success in explaining independent astrophysical observations, we still lack understanding ...
Radio emission from massive Young Stellar Objects and their surroundings: Characterization and feedback
(2020-10-12)
Massive stars or high-mass stars dominate their galactic environments. They play a major role in the energy budget of galaxies and are essential in their evolution. However, high mass star formation is not fully understood, ...