344 search results for “supermassive black henk” in the Staff website
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How the speed demons of the universe tell us something about the Milky Way
They hurtle along at over a thousand kilometres per second: the fastest stars in the Milky Way. PhD candidate Fraser Evans conducted research into these elusive hypervelocity stars and discovered that they have a lot to teach us, about black holes and supernovae, for example.
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Motion of stars near Milky Way's central black hole is only predictable for few hundred years
The orbits of 27 stars orbiting closely around the black hole at the center of our Milky Way are very chaotic. As a result, researchers cannot predict with confidence where they will be in about 462 years. ‘That is astonishingly short,’ says astronomer Simon Portegies Zwart who collaborated on the r…
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PhD candidates
Are you a PhD candidate, and is there something you’d prefer to discuss with someone other than your thesis director or supervisor? The confidential counsellor for PhD candidates is here to help. You can speak to him/her in confidence and receive advice. If you experience symptoms of physical or mental…
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Personnel affairs
You may at some point experience problems in your employment relationship with the university. You might feel as if your supervisor will never be satisfied with your performance, or you may not be comfortable with certain decisions. If you’re concerned, don’t hesitate to ask for advice.
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Emergency Services Coordinators
Faculties and other organisational units have their own emergency response coordinators (BHV). Below is an overview of all the University’s BHV coordinators, and a link to their full contact details.
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Willem van der Does sheds new light on the at times pitch-black history of psychiatry
Piercing through the skull with an ice pick, administering electric shocks without an anaesthetic, or applying leeches to the uterus: these may seem like medieval methods of torture, but they are in fact therapies used in medicine. Willem van der Does writes about all of them in his new book. ‘Physicians…
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PhD candidates
Are you a PhD candidate, and is there something you’d prefer to discuss with someone other than your thesis director or supervisor? The confidential counsellor for PhD candidates is here to help. You can speak to him/her in confidence and receive advice. If you experience symptoms of physical or mental…
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Sjoert van Velzen receives Vidi grant to solve 'riddles from the universe'
Minuscule elementary particles from space colliding with Earth can give us an insight into the distant objects they come from. But first, you need to know how to catch them. With a Vidi grant from NWO, researcher Sjoert van Velzen will 'hunt' for neutrinos coming from exploding black holes.
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Telephony coordinators
Your telephony coordinator is authorised to approve a name change or process your application for a new connection or telephone number.
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Emergent Space-Time, Black Holes and Quantum Information
PhD defence
- Project group
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Research by Leiden archaeologists in The Jordan Times
Recent fieldwork at the vast desert region in north-eastern Jordan has revealed an immensely rich heritage of an area that is difficult to access and archaeologically less known. Professor Peter Akkermans was interviewed about his groundbreaking research in this area, known as the Black Desert.
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Galaxies have bipolar gas outflows far into intergalactic space
For the first time, astronomers have observed in three dimensions that gas from spiral galaxies is blown upwards and downwards at high speed, far out of the galaxy. They thereby confirm the theory of galaxy evolution: that star-forming galaxies create intergalactic gas flows by discharging gas along…
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Design METIS instrument for the Extremely Large Telescope finalised
The design for the METIS instrument for the Extremely Large Telescope (ELT) is final. The European Southern Observatory (ESO) has given the green light for production of all parts of the instrument. It is the first ELT instrument, designed and to be built under Dutch leadership, to formally pass the…
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Zooming in on Black Holes with a telescope the size of planet Earth
Lecture, Kaiser Spring Lecture
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From Baghdād to Baghpūr: Global Blackness in Medieval Arabo-Asia
Lecture, Research Seminar Europe 1000-1800
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PhD candidates
Are you a PhD candidate, and is there something you’d prefer to discuss with someone other than your thesis director or supervisor? The confidential counsellor for PhD candidates is here to help. You can speak to him/her in confidence and receive advice. If you experience symptoms of physical or mental…
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Meet your Graduate School – Start of your PhD
Study information, Graduate School
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Model-Assisted Robust Optimization for Continuous Black-Box Problems
PhD defence
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A New Feeling of Unity: Decolonial Black Power in the Dutch Atlantic (1968-1973)
PhD defence
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ReaderOnline
Looking for an easy way to compile, order or view readers online? Then meet ReaderOnline. The instructions below will help you on your way.
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Sumi-e (Japanese Ink Brush Painting)
Arts and leisure, Arts and leisure
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Grants to build large-scale research facilities
Five projects with researchers from Leiden University have received a grant from the Dutch Research Council (NWO) to build or upgrade existing research facilities.
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Four Leiden consortia awarded large NWO grants
No less than four Leiden research teams have been awarded a grant by NWO. On 27 July NWO honoured 21 applications in the Open Competition ENW-XL. NWO awards the grants to consortia in the exact and natural sciences who are doing unconnected fundamental research that is 'driven by curiosity'.
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Working from home
If your work allows it, you can work partly from home and partly at the University. How this combination of working from home and at the University will turn out for you depends on your own working activities and situation and those of your team. This means that tailor-made solutions are needed.
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Graphic techniques: the linoleum cut
Arts and leisure, Arts and leisure
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Making cards: the language of flowers
Arts and leisure, Arts and leisure
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Book Landscapes of Survival sheds new light on the habitation of the Jordan deserts
December 2020 saw the crowning publication of the Landscapes of Survival project by Professor Peter Akkermans. Its main topic is human habitation in marginal environments like the deserts of the Arabian Peninsula. ‘The people living here built their own society, and they would not have viewed it as…
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Book presentation: Coping with Versnel
At a festive book presentation on the 21st of July Prof. em. Henk Versnel received a copy of the volume Coping with Versnel. This historiographical volume highlights the important position of Versnel’s work in the study of religion in the ancient world.
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Projects 2022-2023
In 2022-2023 eight (teams of) teachers received a Grassroots or Grass shoots grant. Here you can read about their projects.
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How to record with a video crew/in the studio
What do you need to record a knowledge clip in the studio? You can find below a checklist of the materials you need to bring to a studio recording. Keep in mind that this checklist depends on the kind of video you want to record. Always discuss the specifics for producing such a video with your video…
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Practical matters concerning the PhD ceremony
If you are granted permission to defend your thesis at Leiden University, please take into account the rules concerning the PhD ceremony. Below you find an overview of the practical matters.
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Drawing and Painting
Arts and leisure, Arts and leisure
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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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Far From Home: The science exploitation of the fastest milky way stars
PhD defence
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COI stakeholder meeting 2023 on governmental problem-solving and implications for legitimacy
On November 30, 2023, the research group Institutions for Conflict Resolution (COI) organized a stakeholder meeting on governmental problem-solving and its implications for legitimacy. COI is a joint collaboration between the Universities of Leiden, Utrecht, and Nijmegen as part of the Dutch Sector…
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‘Scientists should be careful when interpreting results of AI models’
Anthropologist Rodrigo Ochigame studies how AI is changing the practice of scientific research. From astrophysics to mathematics to climate science, they find that the adoption of new AI models is raising questions about what counts as reliable scientific evidence.
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Slavery excuses: 'Cabinet created its own problem by rushing in'
The excuses for the slavery past? It would have been better if the cabinet had taken some more time on that, thinks university lecturer and Atlantic slavery expert Karwan Fatah-Black. 'Too bad they didn’t wait for the results of the study.'
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New generation galaxy formation simulations on the horizon – Evgenii Chaikin received his doctorate with honours
Simulations of galaxy formation provide much more information about galaxies than a telescope. Simulations have been improving significantly in recent years. Astronomer Evgenii Chaikin made such a significant contribution to this field that he graduated with honours on February 27th.
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Vici grants for seven researchers from Leiden University
From research on stellar winds to sign language: an impressive seven researchers from Leiden University will receive a prestigious Vici grant from the Dutch Research Council (NWO).
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Entire examining committee can wear academic dress at PhD ceremonies
Organisation
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Stories from women in physics: ‘I want to understand how the world works’
For the International Day of Women and Girls in Science, women students and researchers from physics talk about what inspires them about their work. From quantum to cosmology and biophysics, their curiosity about how nature works is what connects these women. What do these 5 scientists want to share…
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Van de Waal Lecture 2024 - Barkcloth: wrapping people, places and ideas
Alumni event, Lecture
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Leiden’s slavery past laid bare
The Mapping Slavery project will place markers that tell the story of Leiden’s slavery past. Why is this important and what does it mean for today’s society? Before the markers are placed, a panel came together on 24 March to discuss the slavery past of not only the city but the University too.
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Candidates Faculty Council (FR) and University Council (UR) elections announced
Organisation
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‘The COVID-19 crisis just goes to show how things can go wrong’
Ijeoma Uchegbu is Professor of Pharmacy at University College London (UCL). As a female scientist of colour, she was initially reluctant to play an active role in the university’s diversity policy. Until, that is, she had a radical change of heart: ‘I knew it; I had to become an evangelist.'
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Critical Caribbean Thought on Colonial Legacies
The Caribbean as we know it today is fundamentally a product of colonial activity and globalisation. Practically everyone that inhabits the Caribbean has ancestors from different continents due to colonial activity, which profoundly affects the area to this day. Caribbean writers, both in the Caribbean…
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And the winner is… Results of the annual physics image competition
Salt crystals, a nano-sized golf stick and molten glass. The LION Image Award competition of 2023 yielded a lot of beautiful images once again. But in the end, only one can be the winner.
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Stabbing at Albert Heijn - Turfmarkt in The Hague
Organisation
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Emma van der Vos in Trouw on domestic workers’ right to unemployment benefit
Due to an exception in the law, domestic workers employed by private persons cannot automatially benefit from social security schemes. Home help Carol Kollmann did not agree with this and took her case to court.