Promotor: H.J.A. Röttgering, Co-promotor: M. Haverkorn

Promotor: I. Snellen, Co-Promotor: M. Kenworthy

It is an established fact that the Standard Model has to be extended to explain the so-called Beyond the Standard Model (BSM) phenomena: dark matter, matter-antimatter asymmetry of the Universe and neutrino flavour oscillations.

What are the behaviours of plant traits throughout various points in the growing season in a radiative transfer model framework and how well can this knowledge be integrated through data assimilation to provide priors for robust local and global vegetation products and analysis?

In this thesis, we use low-frequency and high-frequency radio observations to address the following questions regarding quasars: is the radio loud/quiet quasar dichotomy real?

This thesis discusses the physical and chemical processes than influence the composition of forming planets.

Lezing

This dissertation studies the Asymptotics of Bayesian nonparametric inference for Gaussian linear models.

Stars like the sun are born in large molecular clouds existing from gas and dust. During the formation process, the chemical composition of the material can be altered drastically by the changing physical conditions.

Inverse problems are problems where we want to estimate the values of certain parameters of a system given observations of the system. Such problems occur in several areas of science and engineering. Inverse problems are often ill-posed, which means that the observations of the system do not uniquely…

My work focuses on a class of astronomical objects called protoplanetary disks.

This thesis is about cosmological inflation and its relation to observations.

The intracluster medium (ICM) is a hot, tenuous and X-ray emitting gas that pervades galaxy clusters.

In this thesis, I studied the origin and evolution of the non-thermal radiation in merging galaxy clusters.

This thesis contributes to studying primordial cosmology theories and their detectability in future observations.

This thesis is dedicated to the exploration of the primordial dark ages: unknown physics during the earliest stages of the Universe’s expansion that have not yet been directly probed by observations. Cosmic inflation is a burst of exponential expansion of space after the “Big Bang”.

One of the key quests in astronomy is to study the growth and evolution of galaxies across cosmic time. Radio observations provide a powerful means of studying the formation of stars and subsequent buildup of distant galaxies, in a way that is unbiased by the presence of dust.

The origin and evolution of galaxies are closely tied to the cyclic feedback processes between stars and the interstellar medium (ISM).

Aim: To develop and enable application of a practical, flexible, user-friendly platform to provide the scientific community with a tool to generate land surface products and its associated uncertainties and exploit these for data-intensive science.

Laboratory, observation and modeling work on the dissociation of polycyclic aromatic hydrocarbons in interstellar environments and the formation of new molecular species through the fragmentation process.

Promotor: H.V.J. Linnartz

Promotor: Prof.dr. A.G.G.M. Tielens

A large diversity of exoplanetary systems has been found, but it is still unclear what drives this diversity.

Multiple stars, that is two or more stars composing a gravitationally bound system, are common in the universe.

Promotor: W. Jaffe, Co-promotor: K. Meisenheimer

Promotores: Prof.dr. E.F. van Dishoeck, Prof.dr. C.P. Dullemond

In astronomy, the interpration of observations and measurements plays a crucial role: we rely purely and fundamentally on the information that reaches us as observers. And 80% of all matter in the universe is undetectable directly.

This thesis focuses on the X-ray spectral analysis of merging galaxy clusters and the plasma code development for future high-resolution X-ray spectroscopy observations.

Promotor: Prof.dr. E. F. van Dishoeck

In this thesis the combinatorial use of bioorthogonal labelling and Electron Microscopy (EM)-based imaging techniques is explored to enable observations of specific molecular targets in their ultrastructural context within the cell.

Promotor: H.J.A. Rottgering, Co-Promotor: R.J. van Weeren

This thesis aims to enhance our understanding of galaxies by testing theoretical models of galaxy formation against observations, particularly in the cases of extreme systems which have been found to have an excess of baryonic mass in their central regions, in the form of either supermassive black holes…

Astronomical observations of cold regions in the universe show a rich inventory of ices. Part of these ices may end up on planets like our own, but in that journey they will be exposed to considerable amounts of radiation.

We have conducted a full spectral line survey of the 3-13 micron region of two massive protostars, AFGL 2591 and AFGL 2136, for the first time at high spectral resolution.

This thesis describes the development and validation of new high-contrast imaging techniques, with the ultimate goal of enabling the next generation of instruments for ELT-class telescopes to directly image Earth-like extra-solar planets orbiting around nearby stars.

The main theme of this thesis is the theoretical study of Gaussian processes as a tool in Bayesian nonparametric statistics.

Promotor: H.J.A. Röttgering, Co-promotor: G.K. Miley

Promotor: Prof. dr. A.G.G.M. Tielens

Biodiversity enables ecosystems to thrive through the synergy of functional differences among organisms. While human well-being strongly depends on biodiversity-driven ecosystem services, human actions are also at the root of current unprecedented biodiversity declines.

Over the past years it has been discovered that the population of extra-solar planets is large and diverse.

In this work the reconstruction of a tau neutrino signal in the KM3NeT detector is discussed.

This thesis develops a method for direction dependent calibration of the ionosphere in radio interferometric data.

In this thesis, we consider various (electro)chemical phenomena at surfaces and nanoparticles and their underlying atomistic processes, which we studied using first-principles methods such as density functional theory.

This Thesis shows discoveries in non-linear astrochemical kinetics as well as a deeper analysis of dark clouds chemistry.

Promotores: W.T. de Groot, M. Tchuenté, Co-promotor: J.P. Cheylan

Promotores: S.F. Portegies Zwart, E. M. Rossi

This thesis focus on the interaction between M dwarf stellar winds and Galactic cosmic rays and the possible effects on the habitability of exoplanets.

Promotor: Roeland M.H. Merks

Promotores: Prof.dr. A.G.G.M. Tielens, Prof.dr. L. Kaper (UvA)