297 search results for “sun and spelen versie” in the Public website
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Tracing the journey of the sun and the solar siblings through the Milky Way
Supervisor: S.F. Portegies Zwart Co-Supervisor: A.G.A. Brown
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Ming Sun
Science
m.sun@lacdr.leidenuniv.nl | +31 71 527 2727
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Jian Sun
Faculty of Humanities
j.sun@hum.leidenuniv.nl | +31 71 527 2125
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Shuang Sun
Science
s.sun@liacs.leidenuniv.nl | +31 71 527 2727
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Pengfei Sun
Science
p.sun@lic.leidenuniv.nl | +31 71 527 2727
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Liwan Sun
Faculty of Humanities
s.l.sun.liwan@hum.leidenuniv.nl | +31 71 527 2727
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Yichen Sun
Science
sun@strw.leidenuniv.nl | +31 71 527 2727
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Jiangnan Sun
Science
j.sun@biology.leidenuniv.nl | +31 71 527 2727
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Peng Sun
Science
p.sun@cml.leidenuniv.nl | +31 71 527 2727
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Jessie Sun
Faculty of Humanities
j.sun.14@hum.leidenuniv.nl | +31 71 527 2125
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Jing Sun
Science
s.jing@lic.leidenuniv.nl | +31 71 527 1107
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Young suns and infant planets: Probing the origins of solar systems
Even though more than 4000 extra-solar planets are known today, only a small fraction of these has been captured in an image. To better understand the planet formation mechanisms in solar-like environments we started the Young Suns Exoplanet Survey (YSES).
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Rubicon for ‘Artificial Sun’
Physicist Christopher Berg Smiet, who recently obtained his PhD in Leiden, has been awarded an NWO Rubicon. The grant allows him to conduct postdoctoral research for two years at the Princeton Plasma Physics Laboratory (PPPL) in the United States.
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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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Let the sun shine in Leiden!
The Leiden Observatory is starting a crowdfunding campaign to raise enough money to construct a new telescope.
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Giant planet at large distance from sun-like star puzzles astronomers
A team of astronomers led by Dutch scientists have directly imaged a giant planet orbiting at a large distance around a sun-like star. Why this planet is so massive, and how it got to be there, is still a mystery. The researchers will publish their findings in the journal Astronomy & Astrophysics.
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Cheering for the sun at the Leiden Observatory
Staring into the clouds hoping for a glimpse of the sun, cheering in encouragement, video recordings: there was no shortage of things to do at the Leiden Observatory. More than 600 visitors witnessed the last, almost complete solar eclipse of the decade..
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Far from home: the science exploitation of the fastest Milky Way stars
The Sun and all the stars in the night sky reside in the Milky Way galaxy. In the at-rest reference frame of the Galaxy, typical stars travel with velocities of about 100-200 kilometres per second.
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Exploring strange new worlds with high-dispersion spectroscopy
Until the 1990s, the only known planets were those in our Solar System. Three decades later, several thousand exoplanets have been discovered orbiting stars other than the Sun, and substantial efforts have been made to explore these strange new worlds through spectroscopic analyses of their atmosphe…
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Traces of building block of life found around infant suns
ALMA has observed stars like the Sun at a very early stage in their formation and found traces of methyl isocyanate - a chemical building block of life. This is the first ever detection of this prebiotic molecule towards solar-type protostars, the sort from which our Solar System evolved. The discovery…
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‘The sun never sets on our university'
Leiden University has partnerships in the local region, in the Netherlands, in Europe and with countries on almost all the world's continents. Students and researchers benefit from these partnerships, but society is also a beneficiary, says Rector Carel Stolker.
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Dynamics of the Oort Cloud and Formation of Interstellar Comets Santiago Torres Rodriguez
The solar system was formed approximately 4.56 billion years ago. Despite the numerous theories that have been developed over the years, the formation and evolution of the solar system still remain unclear.
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Room for everyone at a sun-drenched EL CID
Thousands of first-year students and hundreds of mentors kicked off the EL CID on Monday morning. This year for the first time, the introduction week of Leiden University and Leiden University of Applied Sciences was also open for students of Regional Training Centre mboRijnland and the Leiden Instrument…
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named after Emeritus Professor Corrie Bakels: 'I revolve around the sun in 5.5 years'
Corrie Bakels is known as one of the founders of bio-archaeology in the Netherlands. One of her former students, Dr Marco Langbroek, active in astronomy, made a request to the International Astronomic Union to name a recently discovered asteroid after her. Hearing the news, Bakels was astounded. 'My…
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Live blog as genre in pursuit of credibility
On the 3rd of April, Sebastiaan van der Lubben successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Sebastiaan on this achievement!
- Sun Viewing Day
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City Deal Kennis Maken: Leren met de Stad Leiden
Hoe kan de City Deal Kennis Maken bijdragen aan het formuleren van maatschappelijk relevant onderzoek dat de stad in al haar diversiteit centraal stelt? In de stad Leiden zijn burgers momenteel maar in beperkte mate betrokken bij het bepalen van de agenda van de lokale City Deal Kennis Maken. Dit onderzoeksproject…
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Thunderstorm: A small cultural history (1752-1830) (in Dutch)
More on the Dutch webpage.
- National Sun Watching Day - Online
- Spanish 1+2 Intensive Summer Course
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Working at the Faculty of Science
Working for a top faculty? Discover the vacancies at the Faculty of Science and apply immediately.
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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.
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Two temperate Earth-mass planet candidates around Teegarden’s Star
Leiden University has participated in an international study carried out by the CARMENES consortium, which has discovered two small, terrestrial planets around Teegarden’s Star. The planets have masses similar to Earth and their temperatures could be mild enough to sustain liquid water on their surf…
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International Environmental Obligations and Liabilities in Deep Seabed Mining
On dinsdag 26 juni 2018, Linlin Sun defended her doctoral thesis ‘International Environmental Obligations and Liabilities in Deep Seabed Mining’. The doctoral research was supervised by Prof. dr. N.J. Schrijver en Prof. dr. E.C.P.D.C. De Brabandere.
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Holographic Duality in Condensed Matter Physics
The physics of black holes appears to be as far removed from the physics of electrons in metals as it can be.
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Science for Society
By carrying out fundamental research and providing excellent education, universities become a breeding ground for innovation and entrepreneurship.
- Poetry @ Middle Eastern Culture Market 2019
- Workshops @ Middle Eastern Culture Market 2019
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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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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.
- French 1
- French 1+2 Intensive Summer Course
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Re‐dating the seven early Chinese Christian manuscripts : Christians in Dunhuang before 1200
Mr. J. Sun defended his thesis on 21 March 2018.
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New model predicts ‘yoyo’ orbits around black holes
Stars orbit black holes while jumping up and down. This is the prediction of a theoretical model developed by Leiden physicist Satish Kumar Saravanan, based on Einstein’s theory of relativity. He defends his PhD thesis on July 7th.
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Telescopes
The Old Observatory houses four historical telescopes. On this page you can learn more about them.
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SciSTIP
SciSTIP was established on 1 April 2014 as part of the DSI-NRF Centres of Excellence Programme funded by the South Africa’s National Research Foundation (https://www.nrf.ac.za/). SciSTIP is hosted by the Centre for Research on Evaluation, Science and Technology (CREST) at Stellenbosch University and…
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The astrochemical factory: A solid base for interstellar reactions
In this thesis chemical and physical processes in the ice mantles on interstellar dust grains are studied.
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Massive Stars Are Factories for Ingredients to Life
NASA’s telescope SOFIA has provided a new glimpse of the chemistry in the inner region surrounding massive young stars where future planets could begin to form. Leiden PhD candidate Andrew Barr writes about it in the Astrophysical Journal. The scientists found massive quantities of water and organic…
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Planet formation: food for thought
Planet formation is a surprisingly homogeneous process that does not take place gradually from inside out, but that occurs everywhere at the same time in a proto-planetary disc, as Dave Lommen has discovered. He will obtain his doctorate this week based on his research into the dust around young stars…
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Astronomers see two planets vacuuming around young star
Astronomers led by Leiden astronomer Sebastiaan Haffert have directly imaged two planets that are gravitationally carving out a wide gap within a planet-forming disk surrounding a young star. While over a dozen exoplanets have been directly imaged, this is only the second multi-planet system to be p…