The high velocity tail of the total velocity distribution of stars provides essential insight into fundamental properties of the Galaxy.

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.

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

Promotie

The next generation of high-contrast imaging instruments on space-based observatories requires sophisticated wavefront sensing and control in addition to a high-performance coronagraph.

Mechanical forces are known to play an important role in bacterial colonies. In this dissertation, we study the self-organization at various stages of growing bacterial colonies, and focus on the mechanical effects of cell growth.

This thesis is devoted to an in-depth examination of the various effects of disorder in the cuprate high-temperature superconductors.

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).

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

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

The solar system was formed approximately 4.56 billion years ago. Despite the numerous theories that have been developed over the years, the formation and evolution of the solar system still remain unclear.

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.

Promotor: H.J.M. de Groot

Van de gebrekkige dierenkennis van kinderen tot een groot protest bij de opening van het academisch jaar: de onderstaande artikelen werden opvallend veel gelezen in 2019.

Lezing

Lezing

Alle superzware centrale zwarte gaten in sterrenstelsels blijken periodes te hebben dat ze materie uit hun nabije omgeving verorberen. Maar verder houden de overeenkomsten wel zo'n beetje op. Dat blijkt uit onderzoek van sterrenkundigen uit Groningen, Manchester, Leiden en Pretoria. Ze onderzochten…

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…

Lezing

Lezing

Lezing

Are you passionate about writing and sustainability? Do you feel like sharing your talent with the rest of the university? This is your chance!