246 search results for “protoplanetary dijk” in the Public website
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Freezing conditions in warm disks: snowlines and their effect on the chemical structure of planet-forming disks
This thesis focusses on the temperature structure in protoplanetary disks. The relation between structures seen in the dust and gas-phase molecules is investigated.
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In Memoriam Emeritus Professor G. van Dijk
Gerrit van Dijk was born on 14th August 1939 in Kampen. He studied Mathematics in Utrecht where he also received his PhD in 1969 on the thesis ‘Spherical functions on the p-adic group PGL(2)’. His supervisor was prof. dr. T.A. Springer. The academic year 1969-1970 he spent in Princeton, at the Institute…
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NWO grant Yra van Dijk for international Holocaust research
Yra van Dijk obtained a NWO 'Internationalisation in the Humanities' grant. Together with Ernst van Alphen she will collaborate with 8 European and Israelian partners in researching 'Digital Memory of the Holocaust'.
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Ice and Gas in Protostellar Clouds and Planet-forming Disks
This thesis takes steps toward understanding the interaction between gas-phase and solid-state molecules in star- and planet-forming regions.
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Ingredients of the planet-formation puzzle
High-angular-resolution observations of the circumstellar material have uncovered numerous and very diverse substructures in protoplanetary discs, raising the question of whether they are caused by forming planets or other mechanisms.
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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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Sandra van Dijk in Dutch media about a multidisciplinary approach of covid-19
Health psychologist Sandra van Dijk speaks for several Dutch newspapers about an especially vulnerable group of people in times of Covid-19. This page collects the media appearances of Van Dijk.
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Lukasz Tychoniec
Science
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The Infrared Spectrum of Massive Protostars
We have conducted a full spectral line survey of the 3-13 micron region of two massive protostars, AFGL 2591 and AFGL 2136, for the first time at high spectral resolution.
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GTGC lunch seminar: Chris Wensink & Midas van Dijk on Regionalizing Eurasia
As part of the GTGC Lunch Seminars, Chris Wensink and Midas van Dijk presented their book 'Regionalizing Eurasia'. The COVID-19 pandemic restricted travel and placed free trade under scrutiny. Then, the war in Ukraine triggered unprecedented economic sanctions and severing of trade ties. By contrast,…
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Simulating the birth environment of circumstellar discs
Circumstellar discs are the reservoirs of gas and dust that surround young stars and have the potential to become planetary systems.
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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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From molecules to planets: Exploring the chemical heritage of solar systems
Walsh
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All comets in our solar system might come from the same place
All comets might share their place of birth, new research says. For the first time ever, astronomer Christian Eistrup applied chemical models to fourteen well-known comets, surprisingly finding a clear pattern. His publication has been accepted in the journal Astronomy & Astrophysics.
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Afgrond zonder vangnet
Onlangs verscheen het boek ‘Afgrond zonder vangnet’ van Yra van Dijk, hoogleraar Moderne Nederlandse Literatuur. In haar boek analyseert ze verschillende thema's in het werk van Arnon Grunberg.
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Astronomer Jos de Boer receives Chesneau Prize for best dissertation
Astronomer Jos de Boer has received the Chesneau Prize in Nice for his research into so-called protoplanetary disks. The prize is awarded to the best astronomical dissertation in the field of high angular resolution. 'I consider it a good opportunity to talk about my research.'
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Surprising molecule helps detect protoplanets
A team of scientists, including Leiden Astronomer Alice Booth, has discovered silicon monosulfide molecules in the dust disk around a young star. Such molecules indicate planet formation. The team made the discovery using the ALMA telescopes. This method provides an alternative when direct observation…
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Research Projects, Categories and Supervisors
These are the proposed research projects for LEAPS 2019. Please note that not all projects will go ahead and some may still be added in the near future. Final funding decisions lie with the Faculty sponsors. And please make a note that if you are interested in an ESA project, to check if your state…
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Schadenfreude: Understanding Pleasure at the Misfortune of Others
Leiden psychologist Wilco van Dijk and communication scientist Jaap Ouwerkerk of VU University Amsterdam published a book about the emotion Schadenfreude. The authors describe what the emotion Schadenfreude really is, when people experience the emotion, and what role it plays in social relations.
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Financial stress by design
PhD defence
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Invariant Hilbert subspaces of the oscillator representation
Promotor: G. van Dijk
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Small scale kinematics of massive star-forming cores
Promotor: Prof.dr. E.F. van Dishoeck, Co-Promotor: M.R. Hogerheijde
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Synthesis of mycobacterial phenolic glycolipids
Het proefschrift omschrijft de chemische synthese van fenolische glycolipiden van verschillende mycobacteriën met het doel om deze te kunnen gebruiken voor immunologisch onderzoek.
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Planet formation starts before a star is fully grown
A team of European astronomers under Leiden leadership has discovered that dust particles around a star already coagulate before the star is fully grown. These agglomerated dust particles are the first step in the formation of planets. The research publish their discovery in the journal of Nature As…
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Studi sosiolinguistik bahasa Fataluku di Lautem
Edegar da Conceição Savio defended his thesis on 28 January 2016
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Portrait/Figure drawing
Arts and leisure, Arts and leisure
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Awards
These honors and distinctions were given to work that was done within the Media Technology program by both students and staff.
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Painting with starlight : optical techniques for the high-contrast imaging of exoplanets
This thesis describes the development and validation of new high-contrast imaging techniques, with the ultimate goal of enabling the next generation of instruments for ELT-class telescopes to directly image Earth-like extra-solar planets orbiting around nearby stars.
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Core team of the LHSC
Within the FSW, we have put together a core team with contacts in the individual Institutes and at the Faculty level.
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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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Memory and Identity
Research conducted in this group aims at furthering our understanding of how communities and individuals deal with social change, conflict and trauma through remembrance and commemoration as well as forgetting in the arts.
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The Social Life of Connectivity in Africa
The studies outlined in this volume explore how connectedness continues to change Africa and how Africa continues to shape the social life of connections.
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BUSS series
The Business Studies Seminar (BUSS) Series features invited scholars’ seminars on organizational, legal, and technological research. In 2024, the Organizational and Entrepreneurial Behavior, Technology and Innovation, and Corporate Governance and Strategy research groups will invite diverse speakers…
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The role and analysis of molecular systems in electrocatalysis
Molecular complexes can be used as electrocatalysts for oxygen reduction, water oxidation, and/or hydrogen peroxide production.
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Book: Sonic Modernities in the Malay World, A History of Popular Music, Social Distinction and Novel Lifestyles (1930s – 2000s)
Sonic Modernities situates Southeast Asian popular music in specific socio-historical settings, hoping that a focus on popular culture and history may shed light on how some people in a particular part of the world have been witnessing the emergence of all things modern.
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Early clinical and imaging features of rheumatoid arthritis: Towards a more complete picture
PhD defence
- GTGC lunch seminar: Chris Wensink & Midas van Dijk on Regionalizing Eurasia
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Does knowledge of environmental performance change farmer's behaviour?
Does knowledge of environmental performance change farmer's behaviour?
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Cancer cells: A closer look
What distinguishes a tumour cell from a healthy cell? Researchers are trying to answer this question as precisely as possible. Certain differences could eventually lead to new therapies.
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Key publications
Key publications of the Quantitative Clinical Pharmacology group
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China Region Group
The China Region Group develops and monitors Leiden University's cooperation with China. It is chaired by the Dean of the Faculty of Science, Prof. Jasper Knoester, and consists of representatives of Leiden University's faculties and various policy departments.
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Persatuan pemuda muslim se-eropa: identity,encouragement for giving, and network,1971-2009
Mr. Sujadi defended his thesis on 29 June 2017
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Collaboration and contestation in words: Dialogues and disputes in African social realities
In African societies today, growing inequality and continued exclusion due to ethnicity, gender, religion, disability or sexual orientation give rise to both contestation and cooperation for social change. How does the written or spoken word lead to collaboration and contestation in areas of social…
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Islam, Politics and Change
The Indonesian Experience after the Fall of Suharto
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Self-reliance crowds out group cooperation and increases wealth inequality
How does self-reliance lead to a decrease in collaboration for public goods?
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Merenungkan Gema, Pemjumpaan Musikal Indonesia-Belanda
Indonesian translation of the book Recollecting Resonances from authors Bart Barendregt and Els Bogaerts.
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Using commitment to improve environmental quality
Promotores: E. van Dijk, G.R. de Snoo. Co-promotor: H. Staats
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Sonic Recollecting Resonances: Indonesian-Dutch Musical Encounters
Over time Dutch and Indonesian composers, performers and music scholars have inspired each other and they continue to do so. The presence of the Dutch in the Netherlands East-Indies and Indonesia, but also the existence of large diasporic communities in the Netherlands have contributed to a mutual exchange…
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Key publications
Key publications of the Computational Drug Discovery group
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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…