Mathematisch-Naturwissenschaftliche Fakultät: Suche
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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 ...
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, ...
Understanding the impact of massive star formation on its surroundings in Messier 8
(2020-06-04)
Massive stars inject an immense amount of energy into their surroundings, which affect the physics and chemistry of the interstellar medium (ISM). Massive stars play a significant role in the evolution of galaxies. The ...
A 3-mm Imaging Line Survey of the Central Molecular Zones of M 82 and IC 342
(2020-07-07)
The central molecular zones of two nearby galaxies M 82 and IC 342 are among the most prominent extragalactic molecular sources in the northern hemisphere. While M 82 is a relatively small late type starburst galaxy, IC ...
A radio view on the structural evolution of massive star-forming galaxies across cosmic time
(2020-03-06)
It is not well understood what processes regulate the global formation of stars in galaxies throughout cosmic history. My work aims to measure the structural evolution of star-forming galaxies (SFGs), from the present back ...
Pulsar searching with the Effelsberg telescope
(2020-02-21)
Pulsars, highly magnetised rapidly-rotating neutron stars, have proved themselves to be incredible tools for exploring many aspects of fundamental physics and astrophysics. More opportunities for building new theories and ...
Probing the Interstellar Medium and Dark Matter with Pulsars
(2020-03-05)
Pulsars are rapidly rotating, highly magnetised neutron stars which emit electromagnetic radiation from their magnetic poles in the form of highly collimated beams. Pulsars are known as a powerful tool to probe the ...