136 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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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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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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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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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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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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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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Model-Assisted Robust Optimization for Continuous Black-Box Problems
PhD defence
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ReaderOnline
Looking for an easy way to compile, order or view readers online? Then meet ReaderOnline. The instructions below will help you on your way.
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Sumi-e (Japanese Ink Brush Painting)
Arts and leisure, Arts and leisure
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FWN-candidates for elections announced
Organisation
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Grants to build large-scale research facilities
Five projects with researchers from Leiden University have received a grant from the Dutch Research Council (NWO) to build or upgrade existing research facilities.
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Four Leiden consortia awarded large NWO grants
No less than four Leiden research teams have been awarded a grant by NWO. On 27 July NWO honoured 21 applications in the Open Competition ENW-XL. NWO awards the grants to consortia in the exact and natural sciences who are doing unconnected fundamental research that is 'driven by curiosity'.
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Candidates Faculty Council (FR) and University Council (UR) elections announced
Organisation
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First Tuesday Talks is a fact: 'It's nice to learn something from another field'
He had been back from Australia for less than 48 hours, but there was no sign of that. Michel Mandjes of MI had the honor of kicking off the very first Tuesday Talks: Science Insights on Tuesday. He did so with a presentation on complex networks.
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How to record with a video crew/in the studio
What do you need to record a knowledge clip in the studio? You can find below a checklist of the materials you need to bring to a studio recording. Keep in mind that this checklist depends on the kind of video you want to record. Always discuss the specifics for producing such a video with your video…
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Practical matters concerning the PhD ceremony
If you are granted permission to defend your thesis at Leiden University, please take into account the rules concerning the PhD ceremony. Below you find an overview of the practical matters.
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Candidates Faculty Council (FR) and University Council (UR) elections announced
Organisation
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Selective cannabinoid CB2 receptor activation in Nature Communications
This March, Jara Bouma, Cas van der Horst and Laura Heitman from the Division of Drug Discovery and Safety and Laura de Paus, Richard van den Berg, Anthe Janssen and Mario van der Stelt from the LIC joined forces to determine how some drugs can specifically target the cannabinoid CB2 receptor (CB2R)…
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Far From Home: The science exploitation of the fastest milky way stars
PhD defence
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‘Scientists should be careful when interpreting results of AI models’
Anthropologist Rodrigo Ochigame studies how AI is changing the practice of scientific research. From astrophysics to mathematics to climate science, they find that the adoption of new AI models is raising questions about what counts as reliable scientific evidence.