The Faculty of Mathematics and Natural Sciences: Search
Now showing items 1-10 of 14
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 ......
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 ...
The isotropy of the Universe as seen through galaxy clusters
(2021-07-07)
The cosmological principle (CP) postulates that the Universe is isotropic and homogeneous. This implies that the Universe has the same expansion rate toward every direction and holds similar amounts of matter when averaged ...
The physical and chemical conditions of molecular clouds on large scales
(2021-09-15)
Observations of molecular emission lines in the radio and (sub)millimetre wavelength regime provide insights into the interiors of molecular clouds which are inaccessible by other forms of radiation. Examining the physical ...
Die Implementierung des Themas Fernerkundung in den Schulunterricht der Sekundarstufe I durch das neue MINT-Wahlpflichtfach "Geographie-Physik": eine Studie zur praktischen Schulfachgestaltung im Differenzierungsbereich der Jahrgangsstufen 8 und 9 an Gymnasien in Nordrhein-Westfalen am Beispiel des Gymnasiums Siegburg Alleestraße
(2021-10-26)
Schülerinnen und Schüler werden in ihrer Alltagswelt seit dem letzten Jahrzehnt immer früher mit Satellitenbildern konfrontiert. Durch den Wetterbericht und die Nachrichtensendung im Fernsehen oder durch virtuelle Globen ...
Small Molecules, Big Impact: Investigating Hydrides in the Interstellar Medium
(2021-06-16)
This thesis investigates hydride molecules in the interstellar medium (ISM) and their use as diagnostics of different phases of the ISM. Particular emphasis is given to the central CH radical, a probe of diffuse and ......
Targeted Fast Radio Burst Searches with the Efflesberg 100-m Radio Telescope
(2021-03-24)
Fast radio bursts (FRBs) are bright, energetic, millisecond duration radio bursts of extragalactic origin. The source of FRBs still remains an open problem. Since the discovery of FRBs in 2007, over 100 FRBs have been ...