PhD Defence

PhD Defence

PhD Defence

Promotor: Jelle S. Kaastra Co-promotor: Jelle de Plaa

My work is motivated by the necessity to extend Standard Model of Particle Physics in order to explain three observed phenomena that this great theory fails to accommodate

If Dutch cinema is examined in academic studies, the focus is usually on pre-war films or on documentaries, but the post-war fiction film has been sporadically addressed.

Promotor: Prof.dr. H.L.V. Linnartz

At the largest scales, two ingredients dictate the distribution of matter in the Universe. The first is dark matter, acting as an invisible scaffolding held together by gravitational forces.

Lecture, Oort lecture

The master’s specialisation Cosmology at Leiden University is positioned at the interface between Theoretical Physics and Observational Astronomy. The main elements are theory, data analysis and numerical simulations, with research on the origin of dark matter as one of the highlights.

Recently, Ingrid Leijten’s book Core Socio-Economic Rights and the European Court of Human Rights was published with Cambridge University Press. The monograph was published in the series Cambridge Studies in European Law and Policy (edited by Laurence Gormley and Jo Shaw) and deals with the protection…

Dishoeck

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.

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

Research at the Leiden Institute of Physics (LION) is foundational and curiosity driven. All our scientists share a desire to increase the knowledge of the world around us, in an open atmosphere of inquiry from which innovative ideas emerge that provide applications and value for society.

The Standard Model (SM) of particle physics fails to explain several observed phenomena and is incomplete. In order to resolve this problem, one may extend the SM by adding new particles.

Conference

Around the sixth and seventh centuries, South and Southeast Asia saw a great religious change: Saivism largely took over from Vaisnavism. We’re going to look at the way in which Saivism, the religion of the god Siva, presented itself with respect to Vaisnavism. In particular we’ll investigate the role…

As part of his guest professorship in Leiden, famous theoretical physicist Prof. Andrei Linde (Stanford University) gave a public lecture on June 23 at the prestigious Leidse Schouwburg in the historic city center. Linde is world-renowned for being one of the inventors of the theory of inflation, which…

On Thursday 15 February 2018, the Hazelhoff Centre for Financial Law welcomed Roel Janssen, financial and economic journalist and writer, for the fifteenth Hazelhoff Guest Lecture.

The master's specialisation Astronomy and Cosmology at Leiden University covers all aspects of modern astrophysics, including observation, interpretation, simulation and theory. This programme is essentially based on combined research in astronomy and physics and is therefore open for students with…

Professor Renata Kallosh (Stanford University), one of the world’s leading theoretical physicists, will be this summer’s Lorentz Professor at the Leiden institute for theoretical physics. Her main areas of interest are cosmology and string theory. She studied physics in Moscow, where she also obtained…

This master’s programme combines Physics with Data Science. You will learn how physics has its own tricks to deal with big data and how techniques from machine learning and deep learning can be applied to classical and quantum data. The first focus of attention is on classical data, including data mining,…

Rottgering

These are the proposed research projects for LEAPS 2019. Please note that not all projects will go ahead and some may still be added in the near future. Final funding decisions lie with the Faculty sponsors. And please make a note that if you are interested in an ESA project, to check if your state…

At Leiden Observatory, researchers investigate the origin of stars and their planetary systems. They detect and characterize planets around other stars (exoplanets). They study how stars and planets form. And they follow molecules from interstellar clouds to nascent planet systems. This way they address…

The Old Observatory offers various options for visits from schools. Besides our tours, we also offer special workshops for schools.

Four young Leiden researchers have been awarded a Rubicon grant to conduct research abroad. They will be working in Germany, the UK and the US studying such topics as the origin of galaxies and risk behaviour in young people.

An international team of astronomers has witnessed a cosmic weather event that has never been seen before.

Astronomers from, among others, SRON and Leiden Observatory have discovered long-sought intergalactic gas with ESA’s space telescope XMM-Newton. This gas is one of the pieces of the puzzle to map the total amount of ‘normal’ matter in the universe. The research will be published in Nature on 21 June…

Building the neutrino detector KM3NeT on the Mediterranean Sea floor has picked up pace. Five detection lines, each carrying eighteen detectors, have been sunk and installed, and the first measurement data are coming in, says neutrino physicist Dorothea Samtleben.

How does astronomy benefit you? The new single-episode podcast Cosmic Perspectives explores the impact of Dutch astronomy on society: from building positive international relationships to the transfer of life-changing technology.

Het project heeft plaats gevonden in de KM3NeT Nikhef Amsterdam groep onder begeleiding van Dr. D.F.E. Samtleben en Prof.dr.ir. T.H. Oosterkamp. De titel van de presentatie is:

Scientists at Leiden University (Netherlands), Stuttgart University (Germany) and Ural Federal University (Russia) have successfully put forward a novel, computed, reaction mechanism that was experimentally tested and show that formaldehyde is formed at much earlier stages in the birthplaces of stars…

The Social Assistance and Minimum Income Levels and Replacement Rates Dataset, assembled by Jinxian Wang and Olaf van Vliet (version December 2016), provides data on minimum income benefit schemes in 33 countries from 1990 until 2009.

The Academic Language Centre provides a wide range of English courses. The courses differ with regard to level, content and frequency.

Behavioural biologist Wouter Halfwerk has been awarded a 2-year outgoing Rubicon-grant from NWO. He will be working at the Smithsonian Tropical Research Institute with bats and frogs to understand the evolution of multimodal communication.

By a stroke of luck, a team led by Dutch PhD student Martijn Oei has discovered a radio galaxy of at least 16 million lightyears long. The pair of plasma plumes is the largest structure made by a galaxy known thus far. The finding disproves some long-kept hypotheses about the growth of radio galaxie…

Leiden PhD researcher Karin Öberg is one of the 17 winners of the NASA Hubble Fellowship. When she has obtained her PhD this autumn she will move to the United States for three years to conduct post-doctoral research into the role of ice in star formation.

What is dark matter? How do supermassive black holes form? ‘Primordial’ black holes might hold the answer to these long-standing questions. Leiden and Chinese cosmologists have identified a new way in which these hypothetical objects could be produced just after the Big Bang. Publication in Physical…

Lecture

Lecture

The Faculty of Science is located at the Leiden Bio Science Park. It was founded more than two centuries ago and currently, more than 8000 people are working and studying at the eight institutes.

The European Physical Society has awarded the prestigieus Edison Volta Prize to Leiden physicist Michel Orrit. The prize is handed out every two years to an individual or a group of at most three scientists as an acknowledgment of an outstanding achievement in physics research.

Deep observations made with the MUSE spectrograph on ESO’s Very Large Telescope have uncovered vast cosmic reservoirs of atomic hydrogen surrounding distant galaxies. The exquisite sensitivity of MUSE allowed for direct observations of dim clouds of hydrogen glowing with Lyman-alpha emission in the…

On Sunday 28 October, the annual open day of the Old Observatory in Leiden takes place. During this day everyone can visit the Old Observatory for free and enjoy activities in this historic building.

On Sunday 28 October, the annual open day of the Old Observatory in Leiden takes place. During this day everyone can visit the Old Observatory for free and enjoy activities in this historic building.

From Mexico and Indonesia to China and Italy: people from all over the world read about the Leiden Observatory publication on the birthplace of comets. This research suggests that all comets in our solar system might come from the same place: a specific range in the flat disk of dust and gas that once…