Blättern Fakultät für Physik (inkl. GAUSS) nach "Dreizler, Stefan Prof. Dr." Betreuer
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Massively parallel spectroscopy of sources in Galactic globular clusters
(2021-10-04)Globular clusters (GCs) consist of hundreds of thousands of stars, densely packed into a spherical shape. Not only do GC contain ordinary main sequence and red giant stars, but also the products of frequent stellar ... -
Follow-up and dynamical analysis of Kepler targets with transit timing variations
(2020-06-04)The exact characterisation of planets, their host stars and the structure of their systems is an essential part of exoplanet research. This helps to understand the formation and evolution of planetary systems. Planets ... -
Spectroscopy of Binaries in Globular Clusters
(2020-05-28)The natural constants in the universe are adjusted so that dense and massive star forming regions can end up in gravitational bound star clusters, called globular clusters. These objects are found in all galaxies and are ... -
Transmission spectra of highly irradiated extrasolar planet atmospheres
(2016-11-11)The ground-based facilities ESO/VLT+FORS2 (Very Large Telescope + FOcal Reducer and low dispersion Spectrograph) and GTC+OSIRIS (Gran Telescopio CANARIAS + Optical System for Imaging and low Resolution Integrated Spectroscopy) ... -
Surface reflectance analysis of small bodies on different scales
(2015-08-11)The aim of this thesis is to model the surface reflectance of small bodies using spacecraft data i.e. asteroids Steins and Lutetia. The overall and local variation of brightness from the surface covers with different ... -
Analysis of small scale solar magnetic fields using Hinode SOT/SP
(2014-07-23)This thesis presents an analysis of small magnetic structures found in the solar photosphere. All the work presented in the following chapters is primarily based on data obtained from the spectropolarimeter aboard the ... -
Gravitational Microlensing: GPU-based Simulation Algorithms and the Information Content of Light Curves
(2011-07-22)The simulation of gravitational microlensing light curves is a time-consuming effort, but essential for confirming potential planetary microlensing events. In this thesis a point-wise binary ... -
Multi-dimensional radiative transfer in circumstellar disks
(2010-01-14)In this thesis a radiative transfer model for the simulation of protoplanetary disks was developed. As a basis served the general stellar atmosphere package PHOENIX (Hauschildt et al. 1999). ... -
X-ray Diagnostics of Accretion Plasmas in Selected Soft Polars
(2009-09-10)Accretion processes occur during diverse stages of stellar evolution and on diverse scales, as for example in star formation, in active galactic nuclei, or in close binaries with a compact ...