1,134 search results for “jeroen werkt space telescope” in the Public website
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UV radiation from massive stars prevents formation of Jupiter-like planet
An international team of scientists, including Xander Tielens of Leiden Observatory, has used space telescope Hubble and the ALMA observatory to show that UV radiation from massive stars can prevent planets from forming. The researchers publish their findings on 1 March in the journal Science.
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Law and Empire. Ideas, practices, empires
This volume was edited by Jeroen Duindam, Jill Harries, Caroline Humfress, and Nimrod Hurvitz.
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School programmes
The Old Obervatory Leiden is one of the partners of the local learning ecosystem ‘Verwonder om de Hoek’, an educational platform from Leiden that lets school children and families wonder about the world of Nature, Science, Technology and Sustainability. On this page you will find the educational programmes…
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A renewed awareness: Reinvigorating preparedness research for crisis and disastermanagement
In this article Jeroen Wolbers and Sanneke Kuipers take a closer look at disaster preparedness to reinvigorate the academic debate.
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Prying eyes on radio skies: pushing the high-resolution low-frequency frontier with LOFAR
In this thesis we push the boundaries of high-resolution imaging at radio frequencies between 100 and 200 MHz. Using the International LOFAR Telescope that spans across Europe we achieve sub-arcsecond angular resolution.
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Searching for the sibling of the earth
Are there other planets like the earth, and will there also be life? Astronomers study planets around stars other than the sun, with the aim to find out what kind of gasses their atmospheres are made up with.
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The Observatory
On this section of the website you can find more information about the Old Observatory and the current astronomy research institute.
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Neutrinos From the Milky Way
Promotor: M. de Jong, Co-Promotor: Samtleben
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Old Observatory Leiden
The Old Observatory of Leiden is the oldest existing university observatory in the world. While students from Leiden University attend lectures in the main part, the visitor center in the basement and the telescopes on the building serve the general public. On this website, you will find information…
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Gabriel Paiuk on The Construction of an Imaginary Acoustic Space
On 23 March a Sonology concert took place in the Arnold Schönbergzaal at the Royal Conservatoire, dedicated to Gabriel Paiuk’s The Construction of an Imaginary Acoustic Space, a composition for ensemble and electronics performed by New European Ensemble.
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What do we define as urban green space?
When do we define a piece of nature in the city as a park? And when is something a tree or shrub? It may seem obvious, but in scientific literature the definitions vary quite a bit. That makes comparisons difficult. Environmental scientist Joeri Morpurgo looked at the differences and designed a general…
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Premiere of The Construction of an Imaginary Acoustic Space
The Construction of an Imaginary Acoustic Space, a new work by ACPA PhD Candidate Gabriel Paiuk was premiered last Saturday at the Universität Mozarteum in Salzburg. The piece was commissioned by the österreichisches ensemble für neue musik for their second yearly concert series.
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Professionals on a course: sound shapes public space
When designing public spaces, noise is often a neglected issue. Architects and urban planners know little about it; noise experts see it mainly as a problem that should be solved simply by reducing the volume. University lecturer Andrea Giolai (LIAS), researcher Kevin Toksöz Fairbairn (ACPA) and Professor…
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What was there first? Water or planets?
Could water be present in planet-forming disks before the formation of rocky planets? The James Webb Space Telescope may have found evidence for that. Webb has for the first time observed water in the inner disc around young star where at greater distance, giant planets have already formed. The research…
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Lifestyle Enclaves in the Instagram City?
Commentators and scholars view both social media and cities as sites of fragmentation. Since both urban dwellers and social media users tend to form assortative social ties, so the reasoning goes, identity-based divisions are fortified and polarization is exacerbated in digital and urban spaces.
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Positive representations of algebras of continuous functions
If X is a locally compact Hausdorff space, then a representation of the complex C* algebra C_0(X) on a Hilbert space $H$ is given by a spectral measure that takes its values in the orthogonal projections on $H$.
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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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After the launch of the next big space mission: ‘This is a big step towards understanding dark matter and dark energy.’
Henk Hoekstra and Alessandra Silvestri work on the astronomy and theoretical physics in the Euclid mission. These Dutch researchers are part of the mission.
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Evening at the Observatory
Every month there is an opportunity to visit the Old Observatory in the evening. These open evenings consist of a lecture followed by a visit to the telescopes in the building.
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Slice of Science
The first photo of a black hole and measuring anxiety in the brain... From 13 until 22 May we're serving a free slice of science with your pizza.
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Chemistry between stars and planets
In the large gas clouds between the stars, chemical reactions take place under extreme conditions, giving rise to both small molecules, such as water and common salt, as well as large complex molecules that can serve as the building blocks of life. This is known as astrochemistry and it is something…
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Searching for life in the Universe
Is there extra-terrestrial life out there? It now looks as though we can sketch out an answer to this enduring question. Leiden Observatory is helping to build new instruments to find the most promising exoplanets.
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Tigers, leopards and humans: creating a co-existing space
How can large carnivores co-exist with human communities? By studying tigers and leopards in Nepal, Babu Ram Lamichhane argues that co-existence is possible if wildlife sites are well conserved while their impacts on humans are minimal and socially acceptable. PhD defence 9 April.
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Molecular Physiology
Molecular Physiology is a research group at the Leiden Institute of Chemistry dedicated to the design, synthesis and application of chemical tools to study important biological and biomedical questions. The group is headed by Prof. Dr. Mario van der Stelt and includes the research lines of Assistant…
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Goedereede-Oude Oostdijk
Jasper de Bruin, Guus Besuijen, Hans Siemons & Jeroen van Zoolingen (2012). De romeinse nederzetting bij het tegenwoordige Goedereede heeft waarschijnlijk een belangrijke functie gehad in de overslag en distributie van diverse goederen, waaronder keramiek en voedingsgewassen. De opgraving van deze nederzetting…
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Garnet Akeyr
Science
g.j.akeyr@math.leidenuniv.nl | +31 71 527 4845
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Dynasties - A Global History of Power, 1300–1800
For thousands of years, societies have fallen under the reign of a single leader, ruling as chief, king, or emperor. In this fascinating global history of medieval and early modern dynastic power, Jeroen Duindam charts the rise and fall of dynasties, the rituals of rulership, and the contested presence…
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A Grammar of Mandarin
A fascinating description of a global language, A Grammar of Mandarin by Jeroen Wiedenhof combines broad perspectives with illuminating depth.
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Rhetorica ad Alexandrum
Louis Verreth and Jeroen De Keyser recently published a critical edition of Francesco Filelfo’s Latin translation of the Rhetorica ad Alexandrum (Edizioni dell'Orso).
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Giacomo Fontana wins thesis prize with 'Seeking tombs from space'
The Netherlands Institute for the Near East (NINO) annually awards the best theses on the Ancient Near East. The 2018 award went to archaeology student Giacomo Fontana for his MA thesis on automatic detection and extraction of Omani burial monuments in satellite images.
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Space Scoop selected as one of the Great Websites for Kids
The American Library Association has selected the Space Scoop website as one of the Great Websites for Kids (GWS). Space Scoop, which launched a dedicated website one year ago, provides the latest space news to educate and inspire children. The website will be included in a compilation of exemplary…
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Increasing the participation of girls and underrepresented communities in space science
The SpaceEU project, coordinated by Leiden University, has launched an online toolkit with a collection of space-centred activities that engage people with the wonders of space. The toolkit is targeted at girls and underrepresented communities and can be used by schools, youth centres, museums, NGOs…
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Basis reduction for layered lattices
Promotor: H.W. Lenstra
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issue on 'The European Union and the Governance of Contested Global Spaces'
Together with College of Europe Professors Sieglinde Gstöhl and Simon Schunz, Joris Larik edited an interdisciplinary special issue for the Journal of European Integration on the theme 'The European Union and the Governance of Contested Global Spaces in an Era of Geopolitics'.
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Leiden University team European runner-up in Manfred Lachs Space Law Moot Court competition
The Manfred Lachs Space Law Moot Court competition was held in Vienna between 8 and 12 April 2024. This event was organised by the European Centre for Space Law in collaboration with the University of Vienna. The team comprised David Eagleson, Solène Flambeaux and Aleksandra Spyra, current students…
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ECSL summer course on Space Law and Policy and Young Scholar's Conference 2024
One of the ECSL’s most successful activities is the ESA/ECSL Summer Course on Space Law and Policy, which is open to students in any stage of their study and a number of young professionals already working in the space industry and space-related sectors. The course is now in its 32nd year and boasts…
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Leiden Lawcast S02E02: Developments in Space Law with Tanja Masson-Zwwan
During the second episode of this Leiden Law podcast, hosts Juli Wentholt and Ishana Badhai will talk with Tanja Masson-Zwaan about the latest developments in Space Law.
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Interdisciplinary Thesis Labs and the International Institute of Air & Space Law (IIASL)
Students greatly benefit from an interdisciplinary learning environment that makes connections with various stakeholders and tackles real-world challenges. This environment allows them to produce innovative and impactful results. As part of their studies, students from the International Institute of…
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Space Law during the State visit of the Dutch Royal couple to Luxembourg
On Thursday 24 May 2018, Tanja Masson-Zwaan of Leiden University’s International Institute of Air and Space Law and Prof Mahulena Hofmann of the University of Luxembourg had the honour of addressing the King and Queen of the Netherlands and the Grand-Duc and Grand-Duchess of Luxembourg during the State…
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Astronomy and Instrumentation (MSc)
The master's specialisation Astronomy and Instrumentation at Leiden University focuses on fully understanding the physical principles and performance of astronomical instruments and to contribute to the development of new instrumentation technologies.
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Capturing polarised light in the search for alien plants
A new way to decipher the light from distant worlds could give us unmistakable evidence of extraterrestrial photosynthesis, and maybe alien plants, finds astronomy author Colin Stuart in the New Scientist. In his article, he describes the work of the group led by Leiden astronomer Rob van Holstein.…
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Transition to renewable energy requires more space - but it will be much cleaner
To generate renewable energy takes more space than one might think. New research by environmental scientist Paul Behrens and master's student John van Zalk shows how much space is needed for nine specific types of energy. Biomass, hydro and wind, while vital, take up the most space. Natural gas and…
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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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Move of SRON space research institute to South Holland now official
By adding their signature to the collaboration agreement on 31 May, Leiden University, TU Delft, space research institute SRON and NWO confirmed the move of SRON from Utrecht to South Holland. From 2021, the headquarters of the space research institute will be located on the Campus of Leiden Univ…
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Aggravating matters: accounting for baryons in cosmological analyses
Three major cosmology-focused missions are planned for the next decade: the Euclid space telescope, the Vera C. Rubin Observatory in Chile, and the Nancy Grace Roman Space Telescope.
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Cold gas in distant galaxies
The formation and evolution of galaxies is fundamentally driven by the formation of new stars out of cold gas.
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Societies at the Old Observatory
Four different astronomical societies are active in the Old Observatory. We are very proud of the commitment these associations show to organize activities.
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High-resolution integral-field spectroscopy of exoplanets
This thesis describes the implementation and on-sky demonstration of high-resolution integral-field spectroscopy for extreme adaptive optics systems that are used to find and characterize exoplanets.
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Visit the Old Observatory
The Old Observatory is still used intensively as a university building. Yet there is still plenty to see and experience in this beautiful monument. Find out what the possibilities are here.
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Guiding blood vessels with laser light
How can lasers control the growth of new blood vessels?