437 zoekresultaten voor “galaxy evolution” in de Publieke website
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When galaxy clusters collide: the impact of merger shocks on cluster gas and galaxy evolution
Promotor: Prof.dr. H.J.A. Rottgering
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Shaping Massive Galaxies: the structural evolution of galaxies across
Galaxies in the local Universe fall into two main categories of spirals and ellipticals. In this Thesis, we explore the structural evolution of galaxies into this bimodal distribution.
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Galaxy formation traced by heavy element pollution
Galaxies form and evolve through close interaction with their surroundings. As a result, the heavy elements ('metals') that are synthesized in stars, are found both inside and outside galaxies.
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Star formation and aging at cosmic noon: the spectral evolution of galaxies from z=2
Promotores: Prof.dr. M. Franx, Prof.dr. P.G. van Dokkum (Yale University)
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The connection between mass and light in galaxy clusters
Promotor: Koen Kuijken Co-promotor: Henk Hoekstra
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The distribution of stellar mass in galaxy clusters over cosmic time
Promotor: Prof.dr. K.H. Kuijken, Co-Promotor: H.Hoekstra
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Identifying the origins of galaxy formation
This thesis investigates how galaxies form and what diversifies the evolutionary histories of galaxies.
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X-ray spectroscopy of merging galaxy clusters
This thesis focuses on the X-ray spectral analysis of merging galaxy clusters and the plasma code development for future high-resolution X-ray spectroscopy observations.
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Resolving gas-phase metallicity in galaxies
Galaxies are environments where gas coalesces, cools, and is converted into stars. However, it remains unclear the exact mechanisms through which galaxies acquire, redistribute and lose their gas.
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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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Metals in the diffuse gas around high-redshift galaxies
Promotores: Prof.dr. J. Schaye & Prof.dr. C. Steidel (California Institute of Technology)
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Early death of massive galaxies in the distant universe
Promotor: M. Franx, Co-Promotor: I.F. Labbé
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Non-equilibrium chemistry and cooling in simulations of galaxy formation
Promotor: J. Schaye
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Star-Forming Galaxies at the Cosmic Dawn
Promotor: Prof.dr. M. Franx, Co-Promotor: Rychard Bouwens
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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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The galaxy–dark matter connection: a KiDS study
In this thesis, the research focuses on the properties of dark matter and dark matter haloes and how they connect with the galaxies we can observe in the Universe.
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The colours of the extreme universe
This thesis presents pioneering work on the panchromatic emission of some of the most luminous galaxies in the early Universe: star forming galaxies and active galactic nuclei.
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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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Galactic substructures as tracers of dark matter and stellar evolution
One of the most important puzzles in modern astrophysics is the nature of dark matter.
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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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Cold gas in distant galaxies
The formation and evolution of galaxies is fundamentally driven by the formation of new stars out of cold gas.
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Cosmic particle acceleration by shocks and turbulence in merging galaxy clusters
In this thesis, I study the formation of large-scale structure and the physics of particle acceleration at large scales (~Mpc).
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Postdoc Physarum nuclear social evolution
Wiskunde en Natuurwetenschappen, Instituut Biologie Leiden (IBL)
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Tracing the evolution of protoplanetary disks
Promotores: Prof.dr. A.G.G.M. Tielens, Prof.dr. L.B.F.M. Waters (UvA), Prof.dr. C. Dominik (UvA)
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Balsaminaceae in Southeast Asia: systematics, evolution, and pollination biology
Balsaminaceae is a diverse plant family characterized by a huge floral morphological diversity.
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The Ecology and Evolution of Microbial Warfare in Streptomyces
The soil-dwelling, filamentous bacteria of the genus Streptomyces are renowned for their production of useful secondary metabolites including antibiotics. The work described in this thesis provides new insights on the role and regulation of antibiotic production and resistance in these bacteria.
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Long term dynamics of stochastic evolution equations
Promotor: S.M. Verduyn Lunel, Co-promotor: O. van Gaans
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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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Selectivity and competition between the anodic evolution of oxygen and chlorine
Sustainable energy from wind and solar is most readily available near the sea.
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The shell evolution of the Hydrocenidae of Malaysian Borneo
The thesis is about the study of shell evolution of the Hydrocenidae of the genus Georissa. This thesis started with a general overview on the evolutionary process of animals due to ecological changes.
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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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Simon Portegies Zwart
Wiskunde en Natuurwetenschappen
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The evolution of shell form in tropical terrestrial microsnails
Promotor: Prof.dr. M. Schilthuizen
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The electrode-electrolyte interface in CO2 reduction and H2 evolution: a multiscale approach
Electrocatalysis allows for storing electricity or converting it into chemical bonds, producing chemical building blocks and fuels using renewable resources.
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Biomimetic models of [NiFe] hydrogenase for electrocatalytic hydrogen evolution
The growing demand of energy indicates that global energy resources in the form of fossil fuels will not be sufficient in the future. In order to solve potential future energy problems development of a sustainable hydrogen economy is highly desirable.
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Evolution of Molecular Resistance to Snake Venom α-Neurotoxins in Vertebrates
We have examined sequences from the ligand-binding domain of the nicotinic acetyl choline receptor (nAChR) in 148 vertebrate species. We are in interested in this receptor because the α-neurotoxins of many venomous snakes binds to this receptor in its location at the neuromuscular junction in all ve…
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Electrocatalysis of CO2/CO interconversion and Hydrogen Evolution in Bicarbonate Buffers
Bicarbonate buffer is largely found in nature due to its ability to regulate pH variations around neutral values. As the pH changes, so does the speciation of the buffer.
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Geometric approach to evolution problems in metric spaces
Promotor: S.M. Verduyn Lunel, Co-promotor: O.W. van Gaans
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Monsters in the Deep: Using simulations to understand the excess baryonic mass in the centres of high-mass, early-type galaxies
This thesis aims to enhance our understanding of galaxies by testing theoretical models of galaxy formation against observations, particularly in the cases of extreme systems which have been found to have an excess of baryonic mass in their central regions, in the form of either supermassive black holes…
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Evolution and development of orchid flowers and fruits
To gain more insight into the evolutionary development of orchid flowers and fruits, the orchid species Erycina pusilla was studied. The evolutionary origin of the median petaloid sepal, the callus on the labellum, and the stelidia was studied.
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X-ray spectroscopy of interstellar dust: from the laboratory to the Galaxy
In this thesis, we present new laboratory data of interstellar dust analogues.
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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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environment in tuning electrochemical CO2 reduction reaction and H2 evolution reaction
This thesis has shed light on some of the ways in which the local electrolyte composition can differ from the bulk and how these changes in the local reaction environment can determine the activity and/or selectivity of two important electrocatalytic reactions, namely, electrochemical CO2 reduction…
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Linking simple molecules to grain evolution across planet-forming disks
Planets are formed in disks of gas and dust around young stars.
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Some Assembly Required: The Structural Evolution and Mass Assembly of Galaxies at z
This thesis investigates the structural evolution and assembly of galaxies since the first few billions years after the big bang.
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Subsidies voor hoogwaardige onderzoeksfaciliteiten
Drie projecten met Leidse onderzoekers ontvangen van NWO een subsidie voor de bouw of vernieuwing van grootschalige onderzoeksfaciliteiten. Zij gaan werken aan elektronenmicroscopie, een X-omics initiatief en een röntgentelescoop. De projecten maken deel uit van de Nationale Roadmap voor Grootschalige…
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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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The evolution of chemical diversity in plants : pyrrolizidine alkaloids and cytochrome P450s in Jacobaea
Plants produce an astonishing variety of secondary metabolites (SMs) which are thought to play vital roles in the fitness of plants through ecological interactions.
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Convergent molecular evolution of toxins in the venom of advanced snakes (Colubroidea)
The explosive radiation and diversification of the advanced snakes (superfamily Colubroidea) was associated with changes in all aspects of the shared venom system. Morphological changes included the partitioning of the mixed ancestral glands into two discrete glands devoted for production of venom ormucous…
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The evolution and plasticity of life histories upon variation in nutrition: on aging focused integrative approach
Promotores: Prof.dr. P.M. Brakefield, Prof.dr. B.J. Zwaan (Wageningen Universiteit)