A century ago, it was unclear whether the stars in the sky were clustered in groups, or widely spread in the universe.

Promotor: Prof.dr. M. de Jong

For centuries astronomers studied the Universe by collecting light. Nowadays, we are living in times of great technological advancements, which allow us to explore our Universe in a new way - though gravitational wave radiation.

One of the key limitations of the direct imaging of exoplanets at small angular separations are quasi-static speckles that originate from evolving non-common path aberrations (NCPA) to which the primary adaptive optics system is inherently blind. The main focus of this thesis is the development and…

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

Galaxies are environments where gas coalesces, cools, and is converted into stars. However, it remains unclear the exact mechanisms through which galaxies acquire, redistribute and lose their gas.

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

Promotie

Advanced sensing techniques require graphene with high quality and well-controlled surface chemistry.

In this thesis integral points on affine del Pezzo surfaces are studied.

This thesis presents pioneering work on the panchromatic emission of some of the most luminous galaxies in the early Universe: star forming galaxies and active galactic nuclei.

When observing star-forming galaxies, we are not only seeing stellar light, but we also see how this interacts with galactic gas and dust. This thesis contains studies of the stellar, nebular and dust properties of low mass star-forming galaxies.

We investigate the buildup of galaxies from various vantage points. The first two chapters focus on the stellar content of galaxies, especially the distribution of stellar masses at birth and potential variations therein in various galactic environments.

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

In this Thesis, novel charge induction mechanisms of ionic liquids are treated, tested and experimented on complex oxides, in particular cuprates.

Promotie

In this thesis, the focus lies on studying glucocorticoid receptor dynamics in living cells with the aim of understanding how this transcription factor finds its DNA target sites to regulate transcription.

Promotor: Christoph U. Keller, Co-promotores: Matthew A. Kenworthy, Frans Snik

When a star gets too close to a supermassive black hole, it is torn apart by strong tidal forces in a tidal disruption event (TDE).

Of all the mass in our Universe, 80% is thought to consist of a hypothetical and invisible substance called dark matter (DM).

Promotor: J.S. Kaastra Co-promotor: E. Constantini

Promotores: P. Stevenhagen, L. van Geemen (Università degli studi di Milano), Co-Supervisor: Ronald M. van Luijk

In this thesis, we present new laboratory data of interstellar dust analogues.

The thesis addresses the long-term dynamical evolution of hierarchical multiple systems.

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.

This thesis focuses on addressing four research problems in designing embedded streaming systems.

When you have decided to participate in a Summer School of Leiden University, there are some matters you need to know before arrival. Please take a few minutes to read through the information here to find out what you can do from your side to smooth the process.

Promotie

Prof. Tim de Zeeuw is de winnaar van de Brouwer Award 2010, een prijs die jaarlijks wordt uitgereikt door de 'Division on Dynamical Astronomy of the American Astronomical Society'. De prijs bestaat uit $2000 en een certificaat.

What is the effect of light at night on plant phenology and physiology, and how does this affect plant interactions with other species?

Bij een werkbezoek aan een bedrijf dat ruimtepuin opruimt, opperde de Britse prins Charles of een klimaatakkoord speciaal voor de ruimte een goed idee is. Daar zal het in elk geval niet van komen, zeggen experts onder wie Tanja Masson-Zwaan.

Promotie

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Hij ontdekte hoe je de draaiing en het middelpunt van ons Melkwegstelsel berekent, voorspelde waar kometen vandaan komen en legde de basis voor de Nederlandse radioastronomie: de Leidse hoogleraar Sterrenkunde Jan Hendrik Oort (1900–1992). Piet van der Kruit, zelf ooit promovendus bij Oort, schreef…

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Lezing, Studium Generale

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Debat, LUCIS Discussion Panel

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Festival