352 zoekresultaten voor “super massive black holes” in de Publieke website
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Hydrodynamics and the quantum butterfly effect in Black Holes and large N quantum field theories
Why do black holes emit thermal radiation? And how does a closed quantum system thermalize?
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Applied String Theory: Explaining Quantum Matter with Black Holes
Hoe kunnen we de mysteries van quantummaterie verklaren?
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Lindsay Black
Faculteit der Geesteswetenschappen
l.black@hum.leidenuniv.nl | +31 71 527 2218
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Caitlin Black
Wiskunde en Natuurwetenschappen
c.e.black@cml.leidenuniv.nl | +31 71 527 2727
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The structure of the dusty cores of active galactic nuclei
Promotor: W. Jaffe, Co-promotor: K. Meisenheimer
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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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Quantitative Super-Resolution Microscopy
Promotor: T. Schmidt
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Matching, entropy, holes and expansions
In this dissertation, matching, entropy, holes and expansions come together. The first chapter is an introduction to ergodic theory and dynamical systems.
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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
- Nederlands 1 super intensief
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Karwan Fatah-Black
Faculteit der Geesteswetenschappen
k.j.fatah@hum.leidenuniv.nl | +31 71 527 2666
- Nederlands 2 super intensief
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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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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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Early death of massive galaxies in the distant universe
Promotor: M. Franx, Co-Promotor: I.F. Labbé
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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.
- Intensieve- en super intensieve cursussen Nederlands
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Dawn of the red and dead: stellar kinematics of massive quiescent galaxies out to z = 2
Promotores: Prof.dr. M. Franx, Prof.dr. M. Kriek (Univ. of California at Berkeley)
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Clues from stellar catastrophes
Promotores: S.F. Portegies Zwart, E. M. Rossi
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Podcast: Karwan Fatah-Black over de transatlantische slavenhandel
Twee podcastafleveringen van Africast over de Transatlantische Slavenhandel met Karwan Fatah-Black.
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Radio galaxies near the epoch of reionisation
This thesis explores the theoretical and observational properties of distant massive galaxies that harbour active black holes in their centres and shine brightly at radio wavelengths.
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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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The dust and molecular gas in the torus of NGC 1068
An Active Galactic Nucleus (AGN) is a highly luminous region at the center of a galaxy, powered by the accretion into a supermassive black hole and emitting energy from radio waves to gamma rays, often outshining the host galaxy.
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Stochastic and Deterministic Algorithms for Continuous Black-Box Optimization
Continuous optimization is never easy: the exact solution is always a luxury demand and the theory of it is not always analytical and elegant.
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The Great Collapse
Promotor: Prof.dr. S.F. Portegies Zwart
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Boekensalon ‘Ooggetuigen van de Nederlandse slavernij’ – met Karwan Fatah-Black en Camilla de Koning
Gruwelen van de overtocht, publieke veiling, brandmerken en dan werken op plantages in de koloniale wereld. Over het Nederlandse slavernijverleden bestaan honderden kilometers archief, maar zelden komen daarin de mannen, vrouwen en kinderen die gedwongen in slavernij leefden aan het woord.
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Surrogate-Assisted Optimization Techniques for Expensive Constrained Black Box ProblemsBagheri, S.
Optimization tasks in practice have multifaceted challenges as they are often black box, subject to multiple equality and inequality constraints and expensive to evaluate.
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Unveiling the nature of giant radio galaxies
The thesis deals with the study of giant radio galaxies (GRGs), which are radio galaxies of megaparsec sizes.
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Faint Quasars at Very Low Frequencies
In this thesis, we use low-frequency and high-frequency radio observations to address the following questions regarding quasars: is the radio loud/quiet quasar dichotomy real?
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Neutral outflows in high-redshift dusty galaxies
Outflows are crucially important for the gas budget and evolution of luminous star-forming galaxies and AGNs, with observed mass outflow rates of the same order as the star formation rate. Greater star formation and black hole growth lead to more intense feedback and outflows, resulting in self-regulated…
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Model-assisted robust optimization for continuous black-box problems
Uncertainty and noise are frequently-encountered obstacles in real-world applications of numerical optimization. The practice of optimization that deals with uncertainties and noise is commonly referred to as robust optimization.
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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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Hunting for the fastest stars in the Milky Way
The high velocity tail of the total velocity distribution of stars provides essential insight into fundamental properties of the Galaxy.
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Magneetvelden niet doorslaggevend voor leefbaarheid op superaardes
De Volkskrant beschrijft een laboratoriumstudie die aantoont dat magneetvelden essentieel zijn voor de leefbaarheid van zogenaamde superaardes. Leids astronoom Ignas Snellen prijst het als een ‘knap staaltje funamenteel onderzoek’, maar vindt dat het belang van de magneetvelden overschat wordt.
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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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Dynamics and radiation from tidal disruption events
When a star gets too close to a supermassive black hole, it is torn apart by strong tidal forces in a tidal disruption event (TDE).
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Tales of Orion: the interplay of gas, dust, and stars in the interstellar medium
Promotores: Prof.dr. A.G.G.M. Tielens, Prof.dr. L. Kaper (UvA)
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A well-established harmony in chaos: from isolated galaxies to galaxy clusters
The origin and evolution of galaxies are closely linked to many different physical phenomena.
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Black Theatre springlevend in Zuid-Afrika
Black Theatre, activistisch theater van en voor zwarte Zuid-Afrikanen, bloeide op onder de apartheid. Maar met de democratisering van Zuid-Afrika heeft deze kunstvorm allerminst aan belang ingeboet, meent Francis Rangoajane. Promotie op 16 november.
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Extremely loud & incredibly far: observing radio bright AGN into the cosmic dawn
In this thesis new methodologies are developed for the detection and systematic study of radio sources in the early universe. This allows us to gain a deeper understanding of the formation and evolution of galaxies, the activity of supermassive black holes, and the final phase transition of our universe:…
- Kaiser Lente Lezing: Zooming in on Black Holes
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UEFA had de Super League niet zomaar mogen verbieden
Het Europese Hof van Justitie heeft de Europese verhoudingen binnen de sportwereld flink op zijn kop gezet. In haar langverwachte uitspraak stelt het Hof dat de UEFA ‘misbruik van een dominante positie’ heeft gemaakt door sancties op te leggen aan de 12 clubs die in 2021 de Super League oprichtten,…
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Veni voor dr. Karwan Fatah-Black
Dr. Karwan Fatah-Black heeft een Veni binnengehaald voor zijn onderzoek 'Paths through slavery: urban slave agency and empowerment in Suriname, 1700-1863'.
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Heeft deelname aan Super League consequenties voor voetballers?
De voetbalbonden dreigen Europese topvoetbalclubs die een Super League willen vormen uit de nationale competities te gooien. Hun spelers zouden niet meer mee mogen doen in de nationale elftallen. Maar kan dat überhaupt? Als het zo ver komt, zouden Nederlandse spelers van de clubs die het betreft ook…
- Oortlezing
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Aspects of cosmic acceleration
The focus of the dissertation
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Karwan Fatah-Black over koloniale zeehelden en straatnamen
Te midden van de ophef rondom het Nederlandse koloniale verleden, klonken er stemmen vanuit de gemeente Urk straten in een nieuwbouwwijk te vernoemen naar zeehelden van vroeger.
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Black lives matter: waarom het Amerikaanse protest in Nederland resoneert
De directe aanleiding was de dood van George Floyd door politiegeweld, maar de Black Lives Matter-betogingen in de Verenigde Staten en hier in Nederland gaan over veel meer dan dat. We vroegen Karwan Fatah-Black, historicus op het gebied van de Nederlandse slavernijgeschiedenis, naar zijn analyse. ‘We…
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Translational Symmetry Breaking in Holographic Strange Metals
In this thesis, we have used numerical approaches to study the effects of translational symmetry breaking on strange metallic systems as realised by the holographic duality.
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Huib Jan van Langevelde nieuwe directeur Event Horizon Telescope
De Leidse astronoom Huib Jan van Langevelde is benoemd tot directeur van het Event Horizon Telescope (EHT)- consortium. De EHT is een project waarbinnen zo’n 350 wetenschappers uit 18 landen samenwerken. De EHT bundelt de grote ALMA-telescoop in Chili met andere (sub)millimetertelescopen en publiceerde…