480 search results for “dark matter” in the Public website
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Research
Research at Leiden Observatory spans the full width of modern astrophysical enquiry. It is based on observation, theory, simulation, and experiment. Two broad clusters characterize the ongoing research. Within each theme, researchers carry out their personal and specialized research programme. The two…
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Spirits as medicine for a dark past
Spirits play a important role in post-colonial and minority literature as a means of processing black pages from history, according to literary scientist Chia-Sui Lee. PhD defence 11 January.
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Cosmic tomography with weak gravitational lensing
We explored the Universe using weak gravitational lensing, a phenomenon that occurs when light from distant galaxies is bent by the gravitational fields of closer cosmic objects, much like how a lens distorts light.
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Shaping Massive Galaxies: the structural evolution of galaxies across
Galaxies in the local Universe fall into two main categories of spirals and ellipticals. In this Thesis, we explore the structural evolution of galaxies into this bimodal distribution.
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Sterile neutrinos in the early Universe
Promotor: A. Achúcarro, Co-promotor: A. Boyarsky
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Withstanding the cold: energy feedback in simulations of galaxies that include a cold interstellar medium
Understanding how galaxies form, interact, and evolve comes largely from comparing theory predictions with observational data. Numerical simulations of galaxies provide the most accurate approach to testing the theory, as they follow the non-linear evolution of gas and dark matter in great detail and…
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Assistant professor in Theoretical Quantum Matter, tenure track (1.0 fte)
Science, Leiden Institute of Physics (LION)
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How Euclid will reveal the dark side of the Universe
ESA’s Euclid mission is to reveal the dark side of the Universe. But how? Professor of Observational cosmology Henk Hoekstra explains it in his interview with Space Team Europe and Horizon Magazine. He uses enlightening examples such as… a swimming pool! Listen to Henk Hoekstra to understand how Euclid…
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Cheianov Group - Quantum Many Body Physics in Condensed Matter and Ultracold Atomic Systems
The research in my group addresses a range of topics related to quantum many-body physics.
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Martin van Exter Lab - Quantum Optics and Light-Matter Interaction
Research in the van Exter lab focuses on quantum aspects of light and light-matter interaction. One of our long-term goals is to develop a reliable quantum memory, based on a single emitter in an open micro cavity.
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Playing dice with the Universe
The ultimate goal of cosmologists is to find a cosmological model able to explain the current observational data.
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Astronomy (BSc)
During the bachelor’s programme Astronomy you will immerse yourself in questions about our universe. Questions such as: ‘what happens in a black hole?’ and ‘what is dark matter?’ In doing so you will learn to apply mathematics and physics to astronomical problems and you will work with computer simulations…
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Probing Gravity at Cosmic Scales
The theoretical explanation of cosmic acceleration is nowadays one of the biggest puzzles in cosmology.
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responses to online peer conflict: How self‐evaluation and ethnicity matter
In online games conflicts between players may arise. Novin, Bos, Stevenson and Rieffe investigated factors that may explain why some adolescents react more angrily than others in this type of situation. In their realistically designed gaming environment, the (pre-programmed) fellow player suddenly started…
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Dirk Bouwmeester
Science
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Question of Conversion”: Internships in Work Package 3B of Pressing Matter
Pressing Matter: Ownership, Value and the Question of Colonial Heritage in Museums is a large-scale research project funded through the Dutch National Research Agenda, and led by Wayne Modest and Susan Legêne (Vrije Universiteit). Work Package 3 on “Value” phrases its main research question as follows:…
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Fairness matters when responding to disasters: An experimental study of government legitimacy
This article by Honorata Mazepus and Florian van Leeuwen in the journal Governance: An International Journal of Policy, Administration and Institutions looks at how evaluations of authorities were influenced by four aspects of a governmental response to a hypothetical disaster.
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analytical approaches for protein aggregates and other particulate matter impurities
Developing robust and comprehensive analytical methods to size and quantify subvisible particles in biopharmaceutical products.
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The promises and the dark side of stem cells
Geneticist Hans Clevers will give the first Niko Tinbergen lecture new style on 10 December, which is all about stem cells. The young Leiden professors Ariane Briegel and Susana Chuva de Sousa Lopes talk about bacterial noses and the cultivation of egg cells in the lab in short introductory lectures…
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Dirk-Jan Kok
Science
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Michel Orrit
Science
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Leiden discoveries
From the Big Bang to superconductivity. Many ground-breaking discoveries have been made in Leiden University’s long history.
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COMMUNITY: unraveling the regulatory networks in Streptomyces that switch on antibiotic production on demand
Through his project we will unravel the global regulatory networks that control gene expression in Streptomyces bacteria and allow them to properly respond to major changes in the environment; we will then harness this knowledge to activate and identify novel antibiotics
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Research in Physics, Cosmology (MSc)
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.
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for good mental health during adolescence: Emotional Intelligence matters
In a longitudinal study, Eichengreen and colleagues explored how the certain aspects of emotional intelligence impact the development of adolescents’ mental health, thus identifying potential warning signs and targets for intervention programs. Despite a higher risk for mental health issues and lesser…
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Exploring the Universe
Astronomers want to understand the Universe, from the Big Bang to the present day, and what the future will hold. In Leiden they focus on two key questions: ‘How did stars and planets originate’ and ‘How were galaxies and black holes formed in the young Universe?’ A new generation of telescopes – just…
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Leiden astronomers explain the universe in educational videos
A stretchy sheet over a bowl representing space, a marble on it's surface creating a dimple, deforming space. Simple classroom experiments like these are featured in new educational videos by AstroEDU. In the videos Leiden astronomers Maria Cristina Fortuna and Henk Hoekstra explain what we know of…
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Periphery Matters: A Cultural Biography of Peking Opera in Hong Kong
Pui Lun Chan defended his thesis on 12 September 2017
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Gravitational waves through the cosmic web
The first direct detection of gravitational waves opened the possibility of mapping the Universe via this new and independent messenger.
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Graduiertenkolleg 'Family Matters' (München)
A new Graduiertenkolleg opens at the LMU.
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About us
Leiden Observatory is the astronomical institute of the Faculty of Science of Leiden University.
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Black holes with ‘dreadlocks’ offer insight into quantum matter
Physicists understand little about quantum matter, which is a building block of future quantum computers. Theorists have now discovered that black holes with ‘dreadlocks’ harbor a similarly exotic order pattern, which makes calculations on quantum matter easier. Publication in Physical Review Letter…
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Why fundamental science matters
Why do we need fundamental science? For a lot of reasons, speakers showed at the Lustrum Symposium ‘Science Matters’. This symposium was held on 18 March 2016 to celebrate the 200th anniversary of the Faculty of Science.
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Tjerk Oosterkamp Lab - Microscopy and Quantum Mechanics at milliKelvin temperatures
We explore the possibilities to combine magnetic resonance techniques with atomic force microscopy together in a single microscope: the MRI-AFM, also called Magnetic Resonance Force Microscopy (MRFM).
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EuroScience Open Forum
In July 2022, Leiden hosted the ESOF conference.
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Leiden Observatory
With each discovery that is made, the universe reveals a fraction of its secrets: the most distant galaxies and quasars, the atmosphere of exoplanets, evidence of dark matter, complex molecules in space. This is what fills the days and nights of the researchers from the Leiden Observatory and their…
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Research Projects, Categories and Supervisors
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…
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Henk Hoekstra appointed Professor Observational Cosmology
Astronomer Henk Hoekstra has been appointed Professor Observational Cosmology at the Leiden Observatory with effect from 1 August.
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Controlling active matter with curvature
Nematic liquid crystals form the key ingredients of most tv screens. The active version of these complex fluids forms a useful model for physicists to research the responses of active matter—like bacteria or traffic flows—to mechanical and geometrical cues. An international research team publishes their…
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On topological properties of massless fermions in a magnetic field
Make more fluid: In condensed matter systems, electrons can acquire unusual properties from their interaction with the atomic lattice.
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On shape and elasticity: bio-sheets, curved crystals, and odd droplets
Because thin systems can deform along the thickness with relative ease, the interplay between surface mechanics and geometry plays a fundamental role in sculpting their three-dimensional shape.
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Michiel Hogerheijde
Science
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Felix Frohnert
Science
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Havar Solheim
Faculty of Humanities
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ESA presents first crystal-clear Euclid photos of the cosmos
The first full-colour images of the cosmos from ESA's space telescope Euclid were presented today. Never before has a telescope been able to take such crystal-clear astronomical images of such a large part of the sky and so far into the deep universe. The five images illustrate Euclid's full potential;…
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Seminar with Religious Matters team in Leiden
On Monday 13 September, the Food Citizens? team and the Religious Matters In an Entangled World team from Utrecht University met in Leiden University’s historic 12th century building, Gravensteen.
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These are the seven Veni winners of the Faculty of Science
The Faculty of Science has received no less than seven Veni grants this year. Camila Correa, Max van Duijn, Stéphanie van der Pas, Sergii Pud, Mónica Varela Álvarez, Joseph Callingham, and Melissa McClure will receive a maximum of 250,000 euros to further develop their own research ideas over a three-year…
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Writing the Earth, Darkly: Globalization, Ecocriticism, and Desire
References to nature and the environment in the Caribbean literary and the contemporary age of globalization.
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30 appearances out of darkness
Arts and culture, Holland Festival
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Video series: Why Latin America matters
Latin America matters! With its rich history, culture, its impressive resilience and creative innovation in the face of such a diverse array of challenges, Latin America can indeed show the way forward inspiring for positive change. Working together with Latin American institutions, our researchers…