708 zoekresultaten voor “very large telescope” in de Publieke website
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Leidse onderzoekers brengen vorming van sterrenstelsels in beeld
Een internationaal team van astronomen, met daarbij een hoofdrol voor onderzoekers van de Sterrewacht Leiden, heeft de brandstof voor het vormen van sterrenstelsels in kaart gebracht in het iconische Hubble Ultra Deep Field. De resultaten van het onderzoek zijn geaccepteerd voor publicatie in The Astrophysical…
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Turen in het diepe universum
Bernhard Brandl, de nieuwe Leidse hoogleraar Infraroodastronomie, bouwt mee aan instrumenten waarmee de grootste telescopen ter wereld worden uitgerust. Met die telescopen kan de mens in het heelal objecten observeren die soms meer dan dertien miljard jaar oud zijn. Op 26 september houdt Brandl zijn…
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De zoektocht door het heelal
Astronomen willen het heelal begrijpen, van de Oerknal tot nu, en hoe dit verder zal gaan. In Leiden concentreren ze zich daarbij op twee vragen: 'Hoe ontstaan sterren en planeten? en 'Hoe ontstonden in het jonge heelal sterrenstelsels en zwarte gaten?' Een nieuwe generatie telescopen – net klaar of…
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Galaxy alignments from multiple angles
Galaxies form and live inside dark matter haloes. As a consequence, they are exposed to the tidal fields generated by the surrounding matter distribution: this imprints a preferential direction to the galaxy shapes, which leads to a coherent alignment on physically close galaxies, called intrinsic a…
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Volatile compounds from Actinobacteria as mediators of microbial interactions
Streptomyces are bacteria abundant in soil that participate in diverse and complex interactions. These bacteria are the main producers of the antibiotics we currently use in the clinic.
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Enumeration and Simulation of Lattice Polymers as Models for Compact Biological Macromolecules
Promotores: H. Schiessel, G.T. Barkema
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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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Inferno Worlds
A remarkable population of short period transiting rocky exoplanets with equilibrium temperatures on the order of 2,000 K has recently been discovered.
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Pharmaceutical Aspects of Subvisible Particles in Protein Formulations
Promotor: W. Jiskoot, Co-promotor: A. Hawe
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Weighing the Dark: Cosmological Applications of Gravitational Lensing
Promotor: K. Kuijken, Co-Promotor: H. Hoekstra
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Applications of paramagnetic NMR spectroscopy for protein research
The aim of the research presented in this thesis was to develop new methods forchallenging systems in liquid-state NMR using paramagnetic effects generated by thetwo-armed probe CLaNP-5.
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Quantification in untargeted mass spectrometry-based metabolomics
Promotor: T. Hankemeier, Co-promotor: T.H. Reijmers
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Abstract delta modeling: software product lines and beyond
Promotor: Prof.dr. F.S. de Boer, Co-promotor: D. Clarke
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Granular Flows: Fluidization and Anisotropy
Promotor: Prof.dr. M.L. van Hecke
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The origins of friction and the growth of graphene, investigated at the atomic scale
Promotor: J.W.M. Frenken
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From supernovae to galaxy clusters: observing the chemical enrichment in the hot intra-cluster medium
Promotor: Jelle S. Kaastra Co-promotor: Jelle de Plaa
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Shining Light on Interstellar Matter
Promotor: H.V.J. Linnartz
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Surface Temperature and the Dynamics of H2 on Cu(111)
Heterogeneous catalysis is one of the fundamental processes of modern life, being common in industrial refinery and hydrogen vehicles, all the way to the living cell. The dissociation of H2 on Cu(111) is an important benchmark system for studying heterogeneous catalysis, with a large and varied amount…
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Towards automated identification of metabolites using mass spectral trees
Promotor: Prof.dr. T. Hankemeier, Co-promotor: Theo Reijmers
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Visual Relation extraction Based on Deep Cross-media Transfer Network
Building a Deep Cross-media Transfer Network to extract visual relations that relieve the problem of insufficient training data for visual tasks.
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Chemical reactivity of O2, CO and CO2 on Cu surfaces
Despite the history of studies on methanol formation from CO2, the dominant elementary reaction steps that constitute the chemical mechanism for this catalyzed process are not determined.
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Daglengte van een exoplaneet voor het eerst gemeten
Waarnemingen met ESO’s Very Large Telescope (VLT) onder leiding van Ignas Snellen hebben, voor het eerst, de rotatiesnelheid van een exoplaneet opgeleverd. Gebleken is dat een dag op Bèta Pictoris b slechts acht uur duurt – veel korter dan de dagen op de planeten van ons zonnestelsel. Het onderzoek…
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Galaxy formation and the structure of the Universe
Promotores: Prof.dr. J. Schaye, Prof.dr. S.D.M. White (MPA Garching)
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The impact of climate variability on the ecology of a lion (Panthera leo Linnaeus 1758) population and lion livestock conflicts in the Amboseli
Promotor: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon, Co-promotor: H.H. de Iongh
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Focal-plane wavefront sensors for direct exoplanet imaging: Theory, simulations and on-sky demonstrations
One of the key limitations of the direct imaging of exoplanets at small angular separations are quasi-static speckles that originate from evolving non-common path aberrations (NCPA) to which the primary adaptive optics system is inherently blind. The main focus of this thesis is the development and…
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Op zoek naar een zusje van de aarde
Snellen
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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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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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Merging galaxy clusters: probing magnetism and particle acceleration over cosmic time
In this thesis, I studied the origin and evolution of the non-thermal radiation in merging galaxy clusters.
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Shape Analysis for Phenotype Characterisation from High-throughput Imaging
We have studied shape with a particular focus on the zebrafish model system. The shape is an essential appearance of the phenotype of a biological specimen and it can be used to read out a current state or response or to study gene expression.
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Towards a single-molecule FRET study of Frauenfelder's nonexponential rebinding of CO in myoglobin
Early time-resolved experiments by Frauenfelder on the ensemble of the kinetic rebinding of CO to myoglobin molecules resulted in a stretched exponential relaxa-tion due to a very large spread of the reaction rates of individual molecules.
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Structure dependence of molecular reactions on surfaces
The research presented in this thesis makes use of small molecules (as H2 , D2 and O2 ) on well-defined single crystal surfaces (flat Pt(111), flat Cu(211) and curved Pt(111)) to elucidate the role of surface structure and degrees of freedom in the reactant in specific surface reactions.
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Cholesterol metabolism in mouse models of atherosclerosis and adrenal steroidogenesis
Cholesterol influences many pathways, including serving as precursor for adrenal steroidogenesis. Imbalance of cholesterol levels has been implicated in several diseases including cardiovascular diseases and its underlying pathology, atherosclerosis.
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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.
- Lezing: Bouw van de meest geavanceerde telescopen ter wereld bij ESO
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Gravitational waves through the cosmic web
The first direct detection of gravitational waves opened the possibility of mapping the Universe via this new and independent messenger.
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NanoFeed
Do selenium nanoparticles in fish food cause subtle alterations in behavior of fish: effect of particles size and concentration?
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Postdoc: Reactive scattering with electronic friction
Wiskunde en Natuurwetenschappen, Leids Instituut voor Chemisch Onderzoek (LIC)
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Nanowire based Tandem Solar Cells
In this project innovative technology for photovoltaics cells is developed and analysis of ecological and health related risks are explicitly accounted for.
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Zo worden zonnestelsels gemaakt
Scherpe nieuwe opnamen laten opvallende structuren zien in de planeetvormende schijven rond jonge sterren. Daarover publiceren verschillende teams astronomen, onder wie Leidse sterrenkundigen Jos de Boer en Christian Ginski.
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NWO subsidieert onderzoeksvoorzieningen
NWO heeft in het programma ‘Investeringen NWO-middelgroot’ subsidies toegekend voor de aanschaf van apparatuur, het opzetten van dataverzamelingen en het maken van software en bibliografieën. Van de 31 subsidies gaan er vijf naar voorstellen van de Universiteit Leiden.
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Life Cycle Assessment of Nanomaterials and Risk Assessment.
What is the environmental impact, the human health impact and the life cycle and production costs of the lab, pilot and commercial diffusion of nanowires and nanowire-based photovoltaic technologies?
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Dynamical Gibbs-non-Gibbs transitions and Brownian percolation
Promotor: Prof.dr. W.Th.F. den Hollander, Co-promotor: R. Fernandez.
- Kaiser Lente Lezing: The Gaia telescope
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Prying eyes on radio skies: pushing the high-resolution low-frequency frontier with LOFAR
In this thesis we push the boundaries of high-resolution imaging at radio frequencies between 100 and 200 MHz. Using the International LOFAR Telescope that spans across Europe we achieve sub-arcsecond angular resolution.
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Neutrinos From the Milky Way
Promotor: Prof.dr. M. de Jong
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Duurzaam bouwen
Fase 2A van het Gorlaeus Gebouw wordt, net als fase 1, duurzaam gebouwd.
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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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Stochastic resetting and hierarchical synchronisation
Stochastic resetting is simple enough to be approached analytically, yet modifies stochastic processes in a non-trivial way.
- LWSK presenteert: Zwaartekrachtlenzen en Donkere Materie in het Heelal