644 search results for “binary star” in the Public website
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solar systems: examining the formation of proto-planetary disks and binary stars
What is the origin of solar systems?
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Strange spinning binary star explains 30-year enigma
An international team led by Leiden astronomers has discovered why the two stars of binary star DI Herculis rotate so strangely around one another, which once even proved problematic for Einstein's theory of relativity. Their findings were published in Nature.
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Multiple star formation: chemistry, physics and coevality
Multiple stars, that is two or more stars composing a gravitationally bound system, are common in the universe.
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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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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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Willem Star
Science
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Lijsbertus Star
Universitair Facilitair Bedrijf
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UBH 2022 - Upsetting Binaries & Hierarchies
Conference
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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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Young Star Award
In 2018, Leiden astrophysicist Ewine van Dishoeck won the Kavli Prize in Astrophysics. At the Faculty's New Year's Reception 2019, she announced that she would start a new award for young science talents, financed by her prize money: the Young Star Award.
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Amphiphilic miktoarm star copolymers
Within this project, PeptoMiktoStars were realized through an orthogonal protecting group strategy and should be investigated further regarding their potential as drug delivery systems in the field of drug delivery to inflamed areas in cancer, bacterial infections or autoimmune diseases.
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Surveying young stars with Gaia: Orion and the Solar neighbourhood
OB associations are loose groups of young, massive stars. They constitute the last stage of the massive starformation process, and the context in which new stars are formed.
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Dancing with the Stars
This thesis develops a method for direction dependent calibration of the ionosphere in radio interferometric data.
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Mathematics cluster STAR tenure track
Perform cutting-edge research in the area of the STAR mathematics cluster.
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Chemistry between stars and planets
In the large gas clouds between the stars, chemical reactions take place under extreme conditions, giving rise to both small molecules, such as water and common salt, as well as large complex molecules that can serve as the building blocks of life. This is known as astrochemistry and it is something…
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The interplay between stars, gas and dust in faint star-forming galaxies
When observing star-forming galaxies, we are not only seeing stellar light, but we also see how this interacts with galactic gas and dust. This thesis contains studies of the stellar, nebular and dust properties of low mass star-forming galaxies.
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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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Exo-planets, star and planet formation
At Leiden Observatory, researchers investigate the origin of stars and their planetary systems. They detect and characterize planets around other stars, which are called exo-planets. They study how stars and planets form. And they follow molecules from interstellar clouds to nascent planet systems.…
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Diagnostics for mechanical heating in star-forming galaxies
Promotor: F.P. Israel, Co-Promoter: R. Meijerink
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The assembly history of the milky way nuclear star cluster
Promotor: P. T. de Zeeuw, Co-promotor: N. Neumayer; G. van de Ven
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Exo-planets, star and planet formation
At Leiden Observatory, researchers investigate the origin of stars and their planetary systems. They detect and characterize planets around other stars (exoplanets). They study how stars and planets form. And they follow molecules from interstellar clouds to nascent planet systems. This way they address…
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Staring at stardust
Dust particles in space form the basis for new stars and planets. But what do these particles consist of and how do they behave? Sascha Zeegers studied this. PhD defence 1 November.
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Disintegration Stars | Publication by Andrew Littlejohn
It is well known that photography means writing with light. However, the meaning of “with” can be ambiguous. Film can be exposed outside of the camera. Historically, people have done so to render visible other forms of radiation than what we call light. In mid-2013, Andrew Littlejohn took several rolls…
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Unveiling protostellar disk formation around low-mass stars
Promotor: Prof.dr. E.F. van Dishoeck, Co-promotor: S. Bruderer
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Casting light on the ƞ Carinae puzzle
Promotor: Prof.dr. V. Icke, Co-Promotor: T.I. Madura
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Telescopes
The Old Observatory houses four historical telescopes. On this page you can learn more about them.
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Eternity by the Stars: An Astronomical Hypothesis
In a century replete with radical politics, final liberations, historical codas, and dreams of eternity, the shadowy figure of Louis-Auguste Blanqui, the constant revolutionary, wrote Eternity by the Stars in the last months of 1871 while incarcerated in Fort du Taureau, a marine cell of the English…
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Clues from stellar catastrophes
Promotores: S.F. Portegies Zwart, E. M. Rossi
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From Star-formation to Recombination: Expanding our View of the Radio-Recombination-Line Universe
The origin and evolution of galaxies are closely tied to the cyclic feedback processes between stars and the interstellar medium (ISM).
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STARS: Shyness and Confidence in Social Situations
Why do some children confront social challenges with confidence, whereas others experience difficulties? What is the role of child temperament and child emotional dispositions? What is the role of parenting? This project aims to shed light on the mechanisms explaining shyness and confidence in response…
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Discover More HyperVelocity Stars to shed light on the Galaxy
Rossi
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Show people, A history of the film star
Show People offers a comprehensive history of the film star from Mary Pickford to Andy Serkis, traversing more than one hundred years and drawing on examples from America, Britain, Europe, Asia and elsewhere.
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Star-Forming Galaxies at the Cosmic Dawn
Promotor: Prof.dr. M. Franx, Co-Promotor: Rychard Bouwens
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From the First Galaxies to the Peak of the Star Formation History
How did galaxies form? How did galaxies evolve?
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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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Two temperate Earth-mass planet candidates around Teegarden’s Star
Leiden University has participated in an international study carried out by the CARMENES consortium, which has discovered two small, terrestrial planets around Teegarden’s Star. The planets have masses similar to Earth and their temperatures could be mild enough to sustain liquid water on their surf…
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Paving the path between low- and high-mass star formation: dynamics probed by Herschel far-infrared spectroscopy
Promotor: Prof.dr. E.F. van Dishoeck, Prof.dr. F.F.S. van der Tak (RUG)
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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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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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Stellar radio beacons for Galactic astrometry
A century ago, it was unclear whether the stars in the sky were clustered in groups, or widely spread in the universe.
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New release: binary systems | Richard Barrett
Binary systems, consists of five electronic compositions, in each of which Richard Barrett worked with a specially made recording from an improvising instrumentalist to produce a new kind of compositional collaboration: Daryl Buckley (electric lap steel guitar), Ivana Grahovac (cello), Lori Freedman…
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Star Authors in the Age of Romanticism. Literary Celebrity in the Netherlands
The development of literary celebrity by focusing on five famous Dutch authors from the nineteenth century
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The poet as pop star. Literary celebrity in the Netherlands 1780-1900
In which way was literary celebrity constructed in the nineteenth century and what forms of fandom were there?
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Not so smooth after all: resolving dust and gas structures in protoplanetary disks
A large diversity of exoplanetary systems has been found, but it is still unclear what drives this diversity.
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The densest matter in nature
What is neutron star matter?
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Multiple star systems: how they got here and why it matters
Disk formation around stars is an important factor in determining whether one or multiple stars evolve. But the big picture of star formation is still far from complete, says PhD researcher Nadia Murillo.
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Gaia spots stars flying between galaxies
A team of Leiden astronomers used the latest set of data from ESA’s Gaia mission to look for high-velocity stars being kicked out of the Milky Way, but were surprised to find stars instead sprinting inwards – perhaps from another galaxy.
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Complex Organic Molecules Discovered in Infant Star System
For the first time, astronomers have detected the presence of complex organic molecules, the building blocks of life, in a protoplanetary disc surrounding a young star. The discovery reaffirms that the conditions that spawned the Earth and Sun are not unique in the Universe. The results are published…
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Discovering new physics in extremely bright neutron stars
Astronomer Alexander Mushtukov, currently working at the University of Amsterdam, received a Veni grant of 250,000 euro’s which he will execute in Leiden. Supervised by Simon Portegies Zwart, Mushtukov will use advanced simulations to understand the unknown physics in extremely bright neutron stars.
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Discrete tomography with two directions
Promotores: R. Tijdeman, K.J. Batenburg