Search Results - "Zwart, F."

Stellar disc destruction by dynamical interactions in the Orion Trapezium star cluster by Zwart, Simon F Portegies

“…We compare the observed size distribution of circumstellar discs in the Orion Trapezium cluster with the results of N-body simulations in which we incorporated…”
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Secular dynamics of hierarchical multiple systems composed of nested binaries, with an arbitrary number of bodies and arbitrary hierarchical structure. First applications to multiplanet and multistar systems by Hamers, Adrian S, Zwart, Simon F Portegies

“…We present a method for studying the secular gravitational dynamics of hierarchical multiple systems consisting of nested binaries, which is valid for an…”
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Young Massive Star Clusters by Portegies Zwart, Simon F., McMillan, Stephen L.W., Gieles, Mark

“…Young massive clusters (YMCs) are dense aggregates of young stars that form the fundamental building blocks of galaxies. Several examples exist in the Milky…”
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White dwarf pollution by planets in stellar binaries by Hamers, Adrian S., Portegies Zwart, Simon F.

“…Approximately 0.2 ± 0.2 of white dwarfs (WDs) show signs of pollution by metals, which is likely due to the accretion of tidally disrupted planetary material…”
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Was the nineteenth century giant eruption of Eta Carinae a merger event in a triple system? by Portegies Zwart, S. F., van den Heuvel, E. P. J.

“…We discuss the events that led to the giant eruption of Eta Carinae, and find that the mid-nineteenth century (in 1838–1843) giant mass-loss outburst has the…”
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Secular dynamics of multiplanet systems: implications for the formation of hot and warm Jupiters via high-eccentricity migration by Hamers, Adrian S, Antonini, Fabio, Lithwick, Yoram, Perets, Hagai B, Zwart, Simon F Portegies

“…Hot Jupiters (HJs) are Jupiter-like planets that reside very closely to their host star, within ~0.1 au. Their formation is not well understood. It is…”
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Multi-physics simulations using a hierarchical interchangeable software interface by Portegies Zwart, Simon F., McMillan, Stephen L.W., van Elteren, Arjen, Pelupessy, F. Inti, de Vries, Nathan

“…We introduce a general-purpose framework for interconnecting scientific simulation programs using a homogeneous, unified interface. Our framework is…”
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The fragility of planetary systems by Portegies Zwart, S. F., Jílková, Lucie

“…We specify the range to which perturbations penetrate a planetesimal system. Such perturbations can originate from massive planets or from encounters with…”
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The Serotonergic System Tracks the Outcomes of Actions to Mediate Short-Term Motor Learning by Kawashima, Takashi, Zwart, Maarten F., Yang, Chao-Tsung, Mensh, Brett D., Ahrens, Misha B.

“…To execute accurate movements, animals must continuously adapt their behavior to changes in their bodies and environments. Animals can learn changes in the…”
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A triple origin for the lack of tight coplanar circumbinary planets around short-period binaries by Hamers, Adrian S, Perets, Hagai B, Zwart, Simon F Portegies

“…Transiting circumbinary planets are more easily detected around short-period than long-period binaries, but none have yet been observed by Kepler orbiting…”
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Secular dynamics of hierarchical quadruple systems: the case of a triple system orbited by a fourth body by Hamers, Adrian S., Perets, Hagai B., Antonini, Fabio, Portegies Zwart, Simon F.

“…We study the secular gravitational dynamics of quadruple systems consisting of a hierarchical triple system orbited by a fourth body. These systems can be…”
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Formation of massive black holes through runaway collisions in dense young star clusters by Portegies Zwart, Simon F, Baumgardt, Holger, Hut, Piet, Makino, Junichiro, McMillan, Stephen L. W

“…A luminous X-ray source is associated with MGG 11-a cluster of young stars ∼200 pc from the centre of the starburst galaxy M 82 (refs 1, 2). The properties of…”
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Mergers of equal-mass binaries with compact object companions from mass transfer in triple star systems by Leigh, Nathan W C, Toonen, Silvia, Portegies Zwart, Simon F, Perna, Rosalba

“…ABSTRACT In this paper, we consider triple systems composed of main-sequence (MS) stars, and their internal evolution due to stellar and binary evolution. Our…”
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Selective Inhibition Mediates the Sequential Recruitment of Motor Pools by Zwart, Maarten F., Pulver, Stefan R., Truman, James W., Fushiki, Akira, Fetter, Richard D., Cardona, Albert, Landgraf, Matthias

“…Locomotor systems generate diverse motor patterns to produce the movements underlying behavior, requiring that motor neurons be recruited at various phases of…”
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Quantitative neuroanatomy for connectomics in Drosophila by Schneider-Mizell, Casey M, Gerhard, Stephan, Longair, Mark, Kazimiers, Tom, Li, Feng, Zwart, Maarten F, Champion, Andrew, Midgley, Frank M, Fetter, Richard D, Saalfeld, Stephan, Cardona, Albert

“…Neuronal circuit mapping using electron microscopy demands laborious proofreading or reconciliation of multiple independent reconstructions. Here, we describe…”
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A circuit mechanism for the propagation of waves of muscle contraction in Drosophila by Fushiki, Akira, Zwart, Maarten F, Kohsaka, Hiroshi, Fetter, Richard D, Cardona, Albert, Nose, Akinao

“…Animals move by adaptively coordinating the sequential activation of muscles. The circuit mechanisms underlying coordinated locomotion are poorly understood…”
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Capture of exocomets and the erosion of the Oort cloud due to stellar encounters in the Galaxy by Hanse, J., Jílková, L., Portegies Zwart, S. F., Pelupessy, F. I.

“…Abstract The Oort cloud (OC) probably formed more than 4 Gyr ago and has been moving with the Sun in the Galaxy since, exposed to external influences, most…”
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Numerical verification of the microscopic time reversibility of Newton’s equations of motion: Fighting exponential divergence by Portegies Zwart, Simon F., Boekholt, Tjarda C.N.

“…Numerical solutions to Newtons equations of motion for chaotic self gravitating systems of more than 2 bodies are often regarded to be irreversible. This is…”
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Rethinking sensorimotor circuits by Zwart, Maarten F

“…New research shows that the neural circuit responsible for stabilising gaze can develop in the absence of motor neurons, contrary to a long-standing model in…”
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Punctuated chaos and the unpredictability of the Galactic Centre S-star orbital evolution by Portegies Zwart, Simon F, Boekholt, Tjarda C N, Heggie, Douglas C

“…ABSTRACT We investigate the chaotic behaviour of the S-star cluster in the Galactic Centre using precise N-body calculations, free from round-off or…”
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