33 search results for “protoplanetary discuss” in the Staff website
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Protoplanetary discs are much smaller than previously thought
Many protoplanetary discs in which new planets are formed are much smaller than thought. Using the Atacama Large Millimeter/submillimeter Array (ALMA) scientists of the Leiden Observatory looked at 73 protoplanetary discs in the Lupus region.
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Lukasz TychoniecFaculty of Science
tychoniec@strw.leidenuniv.nl | 071 5272727
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How to discuss work balance
Talking about work balance is important both for your own well-being and for your performance at work. It is an inherent aspect of a modern-day healthy work culture to openly communicate about your needs and challenges. You can talk about this with your supervisor, for example during bilateral consultations,…
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First ring-forming embedded planet discovered around a young sun-like star
Astronomers led by Leiden PhD candidate Richelle van Capelleveen have, for the first time, discovered an exoplanet that has carved a bright gap in the protoplanetary disc around its star. This rare observation provides new insights into how young planets shape their surroundings.
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Breaking the Ice: Constraining the volatile distribution in protoplanetary disks
PhD defence
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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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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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Student cleans up archival data and uncovers two stellar cocoons
While investigating 16 years of images of young stars from a retired astronomical camera, Leiden master's student Sam de Regt discovered that two of those stars were still enveloped in birth clouds. Never before has anyone captured these two stars in so much detail. He publishes his data-cleaning method…
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Executive Board and University Council discuss security measures
In a confidential meeting, the University Council (UR) and the Executive Board (CvB) have discussed security within our buildings, partly as a result of media reports on this topic that appeared during the summer. The University Council has shared concerns expressed by staff and students concerning…
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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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Join the discussion during the second Social Safety Dialogue Session
Security
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Join the discussion on the university's future direction
What should our education and research look like in 2027? How can we make the university more sustainable and achieve greater impact? The new Strategic Plan will set the direction for the coming years, and the Executive Board wants students and staff to provide as much input as possible. Would you…
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Tracking the origin and evolution of molecules in space
How do molecules originate and evolve in space? And how does that ultimately determine the chemical composition of planets and their atmospheres? The Dutch Astrochemistry Network (DANIII) receives 1.6 million euros from NWO to find out. A large group of Leiden astronomers and chemists is contributing:…
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For the first time, astronomers witness the dawn of a new solar system
International researchers have, for the first time, pinpointed the moment when planets began to form around a star beyond the Sun. Using the ALMA telescope, in which the European Southern Observatory (ESO) is a partner, and the James Webb Space Telescope, they have observed the creation of the first…
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Claim that Executive Board agreed to join 11 April discussion is incorrect
End Fossil, Open Leiden and Students for Palestine incorrectly claim that a meeting will be held with the Executive Board on Friday 11 April. This statement is to correct these claims and clarify the situation.
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Discussing the Personnel Monitor with your team: ‘Grab some post-its and go for it!’
It will be on the agenda of many a team meeting these coming weeks: how can we act on the results of the Personnel Monitor? We asked two managers how they have gone about this, what the results of their meetings have been and whether they have any tips for their colleagues.
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Students for Palestine panel discussion in The Hague on 24 May
Students for Palestine – a group of students from Leiden and The Hague – are holding a panel discussion in the Leiden University in The Hague Wijnhaven building on Tuesday 24 May entitled ‘Silencing Palestine’.
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Video message Annetje Ottow: Discuss the Strategic Plan on 13 September
Annetje Ottow tells you in this video message why the Executive Board hopes for your active contribution.
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State Secretary Gräper visits to discuss cultural heritage and opening up collections
How should we address our colonial heritage? And how digital and accessible are our collections? Outgoing State Secretary Fleur Gräper spoke with researchers and heritage specialists about this on 25 January.
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Academics in the public debate: come discuss academic freedom at our dialogue session
Research
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Cleveringa Professor Frank van Vree: ‘It’s high time to discuss the ritualisation of the past’
The annual commemoration of the nation’s war dead on Dam Square and at Waalsdorpervlakte, the Dutch apologies for historical slavery and the Cleveringa Lecture itself: our relationship with history is often ritualistic, Cleveringa Professor Frank van Vree will say in his inaugural lecture on 27 Nove…
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Binary star reveals: planet formation doesn’t always happen in sync
A team of international researchers led by Tomas Stolker in the Netherlands has imaged a young gas giant exoplanet near a 12-million-year-old star. The planet is orbiting a star at which planet formation has finished, while the same-aged companion star still has a planet-forming disk. The researchers…
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Ewine van Dishoeck receives Fritz Zwicky prize for astrophysics & cosmology
The Fritz Zwicky Prize 2022 for Astrophysics & Cosmology has been awarded to Prof. Ewine F. van Dishoeck for her pioneering, decades-long work in astrochemistry and molecular spectroscopy, as well as for her leadership within the astronomical community. The award was announced today by the European…
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Fast-Tracking Climate Resilience with AI: a Stakeholder Discussion
Panel discussion
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Is our water older than the sun? Astronomers find clue in ice around young star
A team led by Leiden University in the Netherlands and the National Radio Astronomy Observatory have, for the first time, robustly detected semi-heavy water ice around a young sunlike star. In this ice, some of the ordinary hydrogen atoms have been replaced by deuterium, a heavier variant of hydroge…
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First detailed picture of ice in planet-forming disk
An international team of astronomers led by Ardjan Sturm of the Observatory has made the first two-dimensional inventory of ice in a planet-forming disk of dust and gas surrounding a young star. The researches, including Melissa McClure, used the James Webb Space Telescope and publish their findings…
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Mining the kinematics of discs to hunt for planets in formation
PhD defence
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Eric StormFaculty of Humanities
h.j.storm@hum.leidenuniv.nl | +31 71 527 2721
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André GerritsFaculty of Humanities
a.w.m.gerrits@hum.leidenuniv.nl | 071 5271646
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Panel discussion Bias in AI, algorithms, and the tech sector - Young Alumni Network
Alumni event
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From Atoms to Asteroids: How Chemistry Governs the Birth of Planets
Lecture, Harold Linnartz Astrochemistry Prize lecture
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Kiefte-De Jong (LUMC) and Paul Behrens (FWN) on Food & Sustainability - Discussion Meeting + Network Drinks
Lecture
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Annemarie SamuelsSocial & Behavioural Sciences
a.samuels@fsw.leidenuniv.nl | +31 71 527 1724