287 search results for “supermassive black horst” in the Staff website
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Supermassive Black Holes
Lecture, Studium Generale
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Caitlin Black
Science
c.e.black@cml.leidenuniv.nl | +31 71 527 2727
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Lindsay Black
Faculty of Humanities
l.black@hum.leidenuniv.nl | +31 71 527 2218
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Horst Fischer
Faculteit Rechtsgeleerdheid
h.fischer@law.leidenuniv.nl | +31 71 527 2727
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Marco Horsting
Science
m.c.m.horsting@cml.leidenuniv.nl | +31 71 527 2727
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Karin van der Horst
Administratief Shared Service Centre
k.van.der.horst@assc.leidenuniv.nl | +31 71 527 5555
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Danique ter Horst
Bestuursbureau
d.ter.horst@bb.leidenuniv.nl | +31 71 527 2727
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Geert van der Horst
Science
g.b.van.der.horst@lacdr.leidenuniv.nl | +31 71 527 2727
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Linda van der Horst
Faculty Governance and Global Affairs
l.p.j.van.der.horst@fgga.leidenuniv.nl | +31 70 800 9506
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Cas van der Horst
Science
c.van.der.horst@lacdr.leidenuniv.nl | +31 71 527 4607
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Eline van der Horst
Faculteit Rechtsgeleerdheid
e.j.van.der.horst@law.leidenuniv.nl | +31 71 527 2727
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Sander van der Horst
Faculty of Humanities
s.p.van.der.horst@hum.leidenuniv.nl | +31 71 527 2727
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Karwan Fatah-Black
Faculty of Humanities
k.j.fatah@hum.leidenuniv.nl | +31 71 527 2666
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Dutch researchers uncover hidden supermassive black hole
An international team of astronomers led by Violeta Gámez Rosas (Leiden University) has observed a supermassive black hole hidden in a ring of dust. This discovery fits the idea that the so-called active centers of galaxies are much more similar than observations show, because the viewing angle from…
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On a quest to discover where stellar-mass black holes merge
PhD defence
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Susan den Dulk-van der Horst
Science
s.j.c.den.dulk@hortus.leidenuniv.nl | +31 71 527 3117
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Introducing: Sander van der Horst
Sander van der Horst recently joined the Institute for History and the Royal Institute for Southeast Asian and Caribbean Studies (KITLV-KNAW). He is a PhD candidate in Cultural Histories & Decolonization in Southeast Asia. Below, he introduces himself.
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Astronomers Discover Ancient Solitary Quasars with Mysterious Origins
An international team of astronomers, including Leiden PhD student Elia Pizzati, has observed several ancient quasars that, surprisingly, appear to be floating alone in the early universe (less than a billion years after the Big Bang). Until now, astronomers, based on models, assumed that quasars are…
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Greedy Supermassive Black Holes
Lecture, Oort lecture
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Algorithm Design for Mixed-Integer Black-Box Optimization Problems with Uncertainty
PhD defence
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Black hole one year later: proof of a persistent shadow
The brightness peak of the ring around M87's supermassive black hole has shifted 30 degrees counterclockwise in a year. This is shown by new images released by the Event Horizon Telescope consortium.
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Supermassive Black Holes and Where to Find Them
Lecture, Oort lecture
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Victor van der Horst is Chair of the Faculty Council: 'Everyone can contact us'
Since September, Victor van der Horst is a member of the Faculty Council. Well, not just a member; he is the Chairman! In addition, this master's student in Mathematics also devotes himself to our Faculty in many other ways. 'I'm convinced we need input from all layers to keep improving our Faculty.'…
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First photo of black hole at the heart of our Galaxy
Finally we know for sure that there is a black hole at the centre of our own galaxy. Today, astronomers unveiled the first ever photo of Sagittarius A*, a super-massive object at the centre of the Milky Way. This picture could only be taken thanks to the cooperation of telescopes worldwide.
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Finding the origin of giant black holes
‘Space Antenna LISA will open an unprecedented window on the Universe,’ says astronomer Elena Maria Rossi. The mission will be the first one to detect Gravitational Waves from space. These can tell us more about the beginning of our Universe and the formation of black holes. With an NWO grant of twelve…
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Elena Maria Rossi continues her search for the origins of the largest black holes, but now as a professor
Elena Maria Rossi is fascinated by black holes. Her appointment as a professor was a long-held wish, partly because there are so few female professors in her field. ‘My appointment is also a milestone for the Leiden Observatory.’
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Black Hole Images as Artifacts of Human Choice | Rijksmuseum Boerhaave Exhibition
Delve into the depths of black hole imaging as anthropologist Rodrigo Ochigame unveils the human decisions shaping its portrayal. Explore four alternative color choices at the 'Towards the Black Hole' exhibit, now showing at Rijksmuseum Boerhaave, Leiden.
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Dutch astronomers observe giant jets emanating from black hole
An international team of astronomers led by Dutch scientist Martijn Oei has discovered the largest pair of jets from a black hole ever seen. The 'jumbojets' extend a combined length of 140 Milky Ways. The Leiden Observatory played a prominent role in this research. The publication will feature on the…
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Scientists discover the largest stellar black hole in the Milky Way
A European team of astronomers has discovered the largest stellar black hole in the Milky Way. It is more than thirty times as massive as our sun and is located in the constellation of Aquila, about two thousand light-years from Earth. The astronomers stumbled upon the black hole by chance while preparing…
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‘American’ Black Power movement was also active in the Kingdom of the Netherlands
In the 60s and 70s, Black Power groups were also active in the Kingdom of the Netherlands. This is what PhD candidate Debby Esmeé de Vlugt has discovered.
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Karwan Fatah-Black launches book series on slavery and emancipation
How do we account for historical power dynamics when writing new histories of slavery and emancipation? What critical methods can we employ when studying preserved archives and collections? A new book series aims to address these questions. The initiators Karwan Fatah-Black and Ilse Josepha Lazaroms…
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First on-campus event for prospective students: ‘Dr. Black’s seminar was so interactive!’
Touring the campus, meeting current students and taking part in an interactive seminar in the Lipsius building. After 1,5 years of online events due to the corona pandemic, a live Student for a Day took place again on Friday 24 September.
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Black holes are sometimes gigantic volcanoes. Martijn Oei earned his PhD on the subject, with honours
Not everything that comes close to a black hole is swallowed by it. Black holes can also hurl material away, and that chance turns out to be considerably bigger than previously thought. Martijn Oei's accidental discovery and his subsequent research on it earned him a cum laude promotion on 12 Decemb…
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Symposium in Honour of Prof. Dr. Horst Fischer
symposium
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How the speed demons of the universe tell us something about the Milky Way
They hurtle along at over a thousand kilometres per second: the fastest stars in the Milky Way. PhD candidate Fraser Evans conducted research into these elusive hypervelocity stars and discovered that they have a lot to teach us, about black holes and supernovae, for example.
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Motion of stars near Milky Way's central black hole is only predictable for few hundred years
The orbits of 27 stars orbiting closely around the black hole at the center of our Milky Way are very chaotic. As a result, researchers cannot predict with confidence where they will be in about 462 years. ‘That is astonishingly short,’ says astronomer Simon Portegies Zwart who collaborated on the r…
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Dovetailed Protest: Indonesian activists and the global communist peace movement, 1949-1965
Lecture, Histories Connected: Work-in-Progress
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Max van der Horst: “Ethical Vulnerability Mass-Exploitation 101: Theory and Practice”
Lecture, Tech Trends Workshop
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Willem van der Does sheds new light on the at times pitch-black history of psychiatry
Piercing through the skull with an ice pick, administering electric shocks without an anaesthetic, or applying leeches to the uterus: these may seem like medieval methods of torture, but they are in fact therapies used in medicine. Willem van der Does writes about all of them in his new book. ‘Physicians…
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Sjoert van Velzen receives Vidi grant to solve 'riddles from the universe'
Minuscule elementary particles from space colliding with Earth can give us an insight into the distant objects they come from. But first, you need to know how to catch them. With a Vidi grant from NWO, researcher Sjoert van Velzen will 'hunt' for neutrinos coming from exploding black holes.
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Emergent Space-Time, Black Holes and Quantum Information
PhD defence
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Yemen’s history of slavery and its lasting impact on social and racial hierarchies
Lecture, Leiden Yemeni Studies Lecture Series
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Moroccan Register of “Slaves” in the Early 18th Century: Enslavement, Blackness and Racial Binary
Lecture
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Research by Leiden archaeologists in The Jordan Times
Recent fieldwork at the vast desert region in north-eastern Jordan has revealed an immensely rich heritage of an area that is difficult to access and archaeologically less known. Professor Peter Akkermans was interviewed about his groundbreaking research in this area, known as the Black Desert.
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Zooming in on Black Holes with a telescope the size of planet Earth
Lecture, Kaiser Spring Lecture
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Galaxies have bipolar gas outflows far into intergalactic space
For the first time, astronomers have observed in three dimensions that gas from spiral galaxies is blown upwards and downwards at high speed, far out of the galaxy. They thereby confirm the theory of galaxy evolution: that star-forming galaxies create intergalactic gas flows by discharging gas along…
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Design METIS instrument for the Extremely Large Telescope finalised
The design for the METIS instrument for the Extremely Large Telescope (ELT) is final. The European Southern Observatory (ESO) has given the green light for production of all parts of the instrument. It is the first ELT instrument, designed and to be built under Dutch leadership, to formally pass the…
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More pubs on campus? Here's why students and staff care
There should be more social meeting places on our campus. That's one of the outcomes of to the second brainstorming session on the strategic plan. On Tuesday, education and the campus took centre stage during the meeting in Corpus. Professor and programme director Miranda van Eck and student assessor…
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From Baghdād to Baghpūr: Global Blackness in Medieval Arabo-Asia
Lecture, Research Seminar Europe 1000-1800
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Model-Assisted Robust Optimization for Continuous Black-Box Problems
PhD defence