1,259 search results for “radio astronomy” in the Public website
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Early Dutch Radio Astronomy (1940-1970)
Promotores: F.H. van Lunteren, F.P. Israel
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Time Domain Imaging of Transient and Variable Radio Sources
This thesis focuses on the study of transient and variable radio sources in the universe.
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Unveiling the nature of giant radio galaxies
The thesis deals with the study of giant radio galaxies (GRGs), which are radio galaxies of megaparsec sizes.
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Jan Hendrik Oort: star of Dutch radio astronomy
The success of Dutch radio astronomy in the last century was largely due to Leiden astronomer Jan Hendrik Oort. He made astute use of circumstances in the post-war period. Historian Astrid Elbers' research focuses on this golden period.
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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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A radio view of dust-obscured star formation
Within the field of astronomy, understanding how galaxies grow and evolve from the Big Bang to the present day is a challenging and complex question.
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Distant star formation in the faint radio sky
One of the key quests in astronomy is to study the growth and evolution of galaxies across cosmic time. Radio observations provide a powerful means of studying the formation of stars and subsequent buildup of distant galaxies, in a way that is unbiased by the presence of dust.
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Orchestration of Distributed LOFAR Workflows
The LOFAR radio telescope produces petabytes of data every year. Radio Astronomers use complex multi-step pipelines to process this data and produce scientific images.
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Astronomers discover furthest radio galaxy ever
After almost twenty years the record for the most distant radio galaxy has been broken. A team of astronomers led by Leiden PhD candidate Aayush Saxena has discovered a radio galaxy from the time when the universe was just one billion years old. The galaxy is at a distance of 12 billion light years…
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Revealing the nature of new low-frequency radio source populations
It has now been well established that shocks and turbulent motions in the intra-cluster medium (ICM) generated through cluster mergers can produce large-scale synchrotron emission.
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No exams or lectures, but building a radio telescope with empty paint cans
No more lectures and exams for the Radio Astronomy course taught by Michiel Brentjens. The corona crisis is a moment of reflection that has changed his whole way of teaching. Instead of being in front of the class, he lets his students build a radio telescope with paint cans.
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The characteristics of galaxies with powerful radio jets
Radio jets are important to the evoultion of galaxies. However, it is still not fully understood how a radio jet can be triggered.
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Astronomy
Are you thinking about studying Astronomy? Learn more and watch the videos.
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Astronomy
PhD candidates carry out a programme of independent research and additional (limited) course work, culminating in production of a PhD thesis in typically 4 years.
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Machine learning for radio galaxy morphology analysis
We explored how to morphologically classify well-resolved jetted radio-loud active galactic nuclei (RLAGN) in the LOw Frequency Array (LOFAR) Two-metre Sky Survey (LoTSS) using machine learning.
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Reconstructing Magnetic Fields of Spiral Galaxies from Radiopolarimetric Observations
Promotor: H.J.A. Röttgering, Co-promotor: M. Haverkorn
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Astronomy and Science Communication and Society (MSc)
The master’s specialisation Astronomy and Science Communication and Society at Leiden University bridges the gap between experts and the public by combining high quality research in biology with extensive training in science communication.
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Radio galaxies at low frequencies: high spatial and spectral resolution studies with LOFAR
Promotor: H.J.A. Röttgering, Co-promotor: G.K. Miley
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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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Astronomy (MSc)
Students in our Astronomy programme are trained by leading experts in cutting-edge astronomical research. We incorporate in our educational programme observations and data from the world’s foremost ground- and space-based telescopes as well as theoretical, computational and astrochemical modelling,…
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A fresh view on carbon radio recombination lines powered by LOFAR
The Low Frequency Array enables studies of low-frequency carbon radio recombination lines with unprecedented sensitivity, spectral and spatial resolution.
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Teaching
This page contains all relevant information for lecturers teaching in the Astronomy bachelor's and/or master's curriculum at Leiden University.
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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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Astronomy Research (MSc)
The master's specialisation Astronomy Research at Leiden University students focus on astronomical data analysis using models and large-scale simulation, combining the fields of Astronomy, Physics, Mathematics and Computer Science.
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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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Astronomy and Education (MSc)
The master’s specialisation Astronomy and Education at Leiden University prepares you to teach the subject of biology to secondary school students. The programme comprises a one-year Astronomy component, followed by an education component in the second year.
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Astronomy on Tap
Explore our amazing universe from your local bar!
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Astronomy and Cosmology (MSc)
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…
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Education Office Astronomy
The Education Office Astronomy supports all aspects of the Astronomy bachelor and master education programmes. Its main focus is on education quality assurance, student monitoring, education-related PR, student recruitment, job market orientation and alumni policy.
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Stellar radio beacons for Galactic astrometry
A century ago, it was unclear whether the stars in the sky were clustered in groups, or widely spread in the universe.
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Astronomy and Business Studies (MSc)
The master’s specialisation Astronomy and Science Based Business at Leiden University bridges science and business development by focusing on areas such as technology management, innovation, entrepeneurship, operations, and decision making.
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Astronomy and Data Science (MSc)
The Astronomy and Data Science master’s specialisation at Leiden University combines advanced Astronomy courses with relevant courses from the Computer Science programme at Leiden University.
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implementation and evaluation of transnational collaborative programmes in astronomy education and public outreach
Promotores: Prof.dr. G. Miley & Prof.dr. J.M. van den Broek
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Astronomy Council statement on racism
On behalf of the Dutch astronomical community, we unequivocally condemn the brutal killings of Ahmaud Arbery, George Floyd, and Breonna Taylor and countless others and instances of racism.
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Auroras on nineteen stars hint at hidden exoplanets
An international team of scientists including Leiden's Joe Callingham has discovered nineteen red dwarf stars that unexpectedly emit radio waves. The outbursts possibly originate from interaction with exoplanets. The results of the research appear in two scientific publications.
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Ferial Chummun Scholarship in Astronomy
Master
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The spin evolution of accreting and radio pulsars in binary systems
Pulsars were first discovered in 1967 and since then the population has grown and expanded over several wavelengths.
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Exploring the magnetic, turbulent Milky Way through radio waves
Promotor: Prof.dr. H. J. A. Röttgering, Co-Promotor: Dr. M. Haverkorn
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Exploring future multi-messenger Galactic astronomy
For centuries astronomers studied the Universe by collecting light. Nowadays, we are living in times of great technological advancements, which allow us to explore our Universe in a new way - though gravitational wave radiation.
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LOFAR antennas unveil giant glow of radio emission surrounding cluster of galaxies
A Dutch-Italian-German team of astronomers has observed a huge glow of radio emission around a cluster of thousands of galaxies. They combined data from thousands of LOFAR antennas that were focused for 18 nights on an area the size of four full moons. This is the first time astronomers have been able…
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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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Facets of radio-loud AGN evolution: a LOFAR surveys perspective
Promotor: H.J.A. Rottgering, Co-Promotor: R.J. van Weeren
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revealing the operation of AGNs in galaxy clusters with high-resolution radio observations
Following the Big Bang, structure in the Universe started collapsing under the force of gravity. This resulted in the formation of the first stars, galaxies and clusters of galaxies.
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Prestigious Breakthrough Prize for first picture of black hole
They are often referred to as ‘The Oscars of the Natural Sciences’: the Breakthrough Prizes in Life Sciences, Fundamental Physics and Mathematics. This year, the prize for physics went to the Event Horizon Telescope team, which took the first-ever picture of a black hole. Four Leiden astronomers were…
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For high school students
We organise various activities for high school students and their physics teachers to learn about Astronomy at Leiden University.
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Huub Rottgering
Science
rottgering@strw.leidenuniv.nl | +31 71 527 5851
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Staring at the heavens: Astronomy in medieval Islam
University Lecturer Ahab Bdaiwi:
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LOFAR e-Infrastructure Group
The LOFAR e-infrastructure group is responsible for deploying and maintaining LOFAR processing on distributed e-infrastructure. A co-operation between SURFsara, Leiden University and ASTRON, the group develops software to integrate the LOFAR stack with processing pipelines. Our software can schedule…
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Astronomers publish map showing 25,000 supermassive black holes
An international team of astronomers has published a map of the sky showing over 25,000 supermassive black holes. The map, to be published in the journal Astronomy & Astrophysics, is the most detailed celestial map in the field of so-called low radio frequencies. The astronomers, including Leiden astronomers,…
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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…