796 search results for “jaap where since telescope” in the Public website
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Why Leiden University?
By effectively integrating word-class scientific research and excellent education, you will become a professional astronomer with an internationally recognized degree.
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Early stellar galaxies
Franx
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Revealing the origins of solar systems: examining the formation of proto-planetary disks and binary stars
What is the origin of solar systems?
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From the First Galaxies to the Peak of the Star Formation History
How did galaxies form? How did galaxies evolve?
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Anthony Brown
Science
brown@strw.leidenuniv.nl | +31 71 527 5884
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Private Tours
In addition to the walk-in tours at the visitor center, we also offer private tours for groups. These tours delve deeper into the history of the building, but also offer the opportunity to learn more about astronomy in general.
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History
The Old Observatory has a rich history. On this page you will find a short version of the history that took place in the observatory.
- Kickstart your curiosity and learn about science at one of the many stands
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Astronomers capture first-ever image of a multi-planet system around a Sun-like star
An international team led by Leiden astronomers has taken the first-ever image of a young, Sun-like star accompanied by two giant exoplanets. The researchers used The European Southern Observatory’s Very Large Telescope for this, known as ESO’s VLT. Images of systems with multiple exoplanets are extremely…
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Distinguished Fellows
Distinguished Fellows of Leiden University College The Hague are acknowledged for their extensive and outstanding expertise in the private or public sector, and for their intellectual contributions to LUC’s academic programme and scholarly community.
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Journalism and New Media
Conducting research on reliability of journalism and the trust in media.
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How do you recognise the atmosphere of extraterrestrial lava worlds?
In the past 30 years, over 5,000 planets have been discovered outside our solar system. One common exoplanet is the lava world, a hot super-Earth with oceans of liquid lava. Mantas Zilinskas developed models to simulate possible atmospheres of these. Those simulations provide guidance for astronomers…
- qualitative research on effectiveness of supply chain managements by Jaap Baaij
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Where cultures meet
On Saturday 13 May, the 11th edition of the International Cultural Festival took place. This festival brings together international students, Dutch students and inhabitants of Leiden for a trip around the world in one day.
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Star formation and aging at cosmic noon: the spectral evolution of galaxies from z=2
Promotores: Prof.dr. M. Franx & Prof.dr. P.G. van Dokkum (Yale University)
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Star-Forming Galaxies at the Cosmic Dawn
Promotor: Prof.dr. M. Franx, Co-Promotor: Rychard Bouwens
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Dawn of the red and dead: stellar kinematics of massive quiescent galaxies out to z = 2
Promotores: Prof.dr. M. Franx, Prof.dr. M. Kriek (Univ. of California at Berkeley)
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Het gebruik van drones; een verkennend onderzoek naar onbemande luchtvaartuigen
Unmanned aerial vehicles (UAVs), often referred to as drones, have become easy and inexpensive to buy, and it is generally expected that the use of drones by private individuals, businesses and public authorities will increase tremendously in the coming years. This raises questions as to what is technologically…
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Litigating the Rights of the Child
This book examines the impact of the UN Convention on the Rights of the Child (CRC) on national and international jurisprudence, since its adoption in 1989.
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Sweetie 2.0
Sweetie 2.0 is a research project commissioned by Terre des Hommes on online child sex tourism and criminal law.
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Enriching official economic statistics using data-driven modelling techniques
Netherlands Statistics (CBS), Leiden University and the University of Amsterdam have started a collaboration in the form of a research project titled 'Enriching official economic statistics using data-driven modelling techniques'.
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Astronomers see star with dust disk that is still being fed
An international team of astronomers including Leiden scientists publishes the image of a young star with a surrounding dust disk that is still being fed from its surroundings. The phenomenon around the star SU Aur may explain why so many exoplanets are not neatly aligned with their star. The European…
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Leiden astronomers find building blocks for life in the darkest spots of star-forming cloud
An international team led by Leiden astronomers has discovered diverse ices in the darkest, coldest regions of a molecular cloud. To do so, they used the James Webb Space Telescope. This discovery allows astronomers to examine the simple icy molecules that will be incorporated into future exoplanets,…
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Leiden University College The Hague: 'Top rated Programme' since 2013
Leiden University College The Hague received the 'Top rated Programme' seal from the Keuzegids Universiteiten 2023 (Dutch University Guide). It is the tenth consecutive time the Liberal Arts & Sciences programme focusing on Global Challenges is awarded the honorary seal.
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Astronomers see disk around young super-Jupiter which may form moons
An international team of astronomers led by scientists from Leiden Observatory has for the first time characterised a dust disk surrounding a young super-Jupiter, which is either a giant planet or brown dwarf. They detected infrared emission from the disk which might indicate that moons may have formed.…
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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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Leiden PhD student discovers thin atmosphere on exoplanet TRAPPIST-1 c with JWST
A group of astronomers led by Leiden PhD student Sebastian Zieba has discovered using the James Webb Space Telescope (JWST) that the rocky exoplanet TRAPPIST-1 c has a thin atmosphere. Although the planet is nearly identical to Venus in size and temperature, and was expected to have a thick atmosphere,…
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A new step in the search for the origin of dark matter
A signal that is present both in the centre of our Milky Way and in distant places in the universe could reveal the origin of dark matter. This is what Leiden physicist Alexey Boyarsky concludes in an article in Physical Review Letters.
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Uncovering galaxy evolution and the nature of dark matter
Dark matter represents around eighty per cent of the total mass in the Universe. Yet, we still don't really know what it's made of. Astronomer Pavel Mancera Piña is looking for answers. With a Veni grant from NWO and the most advanced telescopes, such as the James Webb Space Telescope, he will investigate…
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The Gaia telescope: mapping 1 billion stars with 1 billion pixels
Lecture, Kaiser Lente Lezing
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Making Sense of Illustrated Handwritten Archives
Many handwritten and illustrated archives contain a wealth of information, but are largely underexplored because they are complex and difficult for computers to decipher. The aim of this project is to develop a digital environment that resolves this challenge and connects heterogeneous archival content…
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Beïnvloeden met emoties. Pathos en Retorica
A source of inspiration for readers who are curious to understand how people move and convince each other
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‘Visual art has been a form of communication since its inception’
Visual art played an important role in the development of cooperative human behaviour. This is the finding of Larissa Mendoza Straffon, a PhD candidate in archaeology, whose dissertation explores the biological and psychological foundations of visual art.
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‘Since coming to Leiden, I’ve never worried that something might be too difficult to do’
The Italian physicist Andrea Morello is one of the pioneers of the quantum revolution. He is currently doing research at the University of New South Wales in Sydney, but cherishes his time as a PhD candidate in Leiden.
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Galaxies and the structures in which they are embedded
Researchers at Leiden Observatory study the fundamental physics that creates structure in the Universe. These processes collect matter into galaxies and gas into stars. With the use of powerful telescopes and advanced calculations and computer simulations, Leiden astronomers seek to understand the origin,…
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Galaxies and the structures in which they are embedded
Researchers at Leiden Observatory study the fundamental physics that creates structure in the Universe. These processes collect matter into galaxies and gas into stars. With the use of powerful telescopes and advanced calculations and computer simulations, Leiden astronomers seek to understand the origin,…
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Galaxy in the early Universe contains carbon after all
In 2015, Jorryt Matthee thought he discovered an extremely distant galaxy called CR7, which lacked elements heavier than helium. Three years later, he shows with measurements using the ALMA telescope that the galaxy does have carbon after all, and even in normal concentrations. The American Astronomical…
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report: inadequate protection from violence for children in youth care since 1945
A significant percentage of children who have spent a period in youth care institutions or foster homes since 1945 received inadequate protection from physical, psychological and sexual violence. Interventions by supervisory authorities in cases involving violence were inadequate.
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Early Dutch Radio Astronomy (1940-1970)
Promotores: F.H. van Lunteren, F.P. Israel
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Protostellar jets and planet-forming disks: Witnessing the formation of Solar System analogues with interferometry
The focus of this thesis is how stars like our Sun and planets like Jupiter, Saturn, and Earth are formed.
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Radio galaxies near the epoch of reionisation
This thesis explores the theoretical and observational properties of distant massive galaxies that harbour active black holes in their centres and shine brightly at radio wavelengths.
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Untangling cosmic collisions: a study of particle acceleration and magnetic fields in merging galaxy clusters
On the largest scale, the Universe resembles a cosmic spiderweb. Most galaxies coexist in small groups within the threads of this web. At the nodes of the threads are enormous groups of galaxies forming the largest structures in the universe still held together by gravity: clusters of galaxies.
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The hunt for frozen organic molecules in space
Complex Organic Molecules (COMs) have been detected in objects across different stages of stellar evolution.
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Alexey Boiarskyi Group - Particle and Astroparticle Physics
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
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Tuning in to star-planet interactions at radio wavelengths
Low-mass main-sequence stars like our Sun are continuous sources of outflowing hot magnetised plasma. In the case of the Sun, this is known as the solar wind, whereas for other stars they are called stellar winds.
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JWG Leiden
The Jeugdwerkgroep is a national astronomy association for young people who are interested in astronomy. The Leiden section organizes a monthly meeting in the Old Observatory Leiden.
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Cosmic particle acceleration by shocks and turbulence in merging galaxy clusters
In this thesis, I study the formation of large-scale structure and the physics of particle acceleration at large scales (~Mpc).
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High-contrast imaging polarimetry of exoplanets and circumstellar disks
Understanding the formation and evolution of planetary systems is one of the most fundamental challenges in astronomy. To directly image and study young exoplanets and the circumstellar disks they form from, dedicated high-contrast imaging instruments are built.
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Extremely loud & incredibly far: observing radio bright AGN into the cosmic dawn
In this thesis new methodologies are developed for the detection and systematic study of radio sources in the early universe. This allows us to gain a deeper understanding of the formation and evolution of galaxies, the activity of supermassive black holes, and the final phase transition of our universe:…
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Linking simple molecules to grain evolution across planet-forming disks
Planets are formed in disks of gas and dust around young stars.