Results 31 to 40 of about 288,498 (316)
A Schwarzschild model of the Galactic bar with initial density from N-body simulations [PDF]
, 2013 Using the potential from N-body simulations, we construct the Galactic bar models with the Schwarzschild method. By varying the pattern speed and the position angle of the bar, we find that the best-fitting bar model has pattern speed (p) = 40 km s(-1 ...
Long, R J +7 more
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N-Body Simulations of Elliptical Galaxies [PDF]
Symposium - International Astronomical Union, 1987 N-body simulations are a useful tool for constructing equilibrium models of elliptical galaxies and for the exploration of their kinematical properties, in particular the tumbling rate of the figure about some axis and the internal streaming. As yet little is known about these, except that there is a large variety of possible equilibrium models.
openaire +2 more sources
Transferability of data-driven, many-body models for CO2 simulations in the vapor and liquid phases [PDF]
, 2021 Extending on previous work by Riera et al. [J. Chem. Theory Comput. 16, 2246 (2020)], we introduce a second generation family of data-driven many-body MB-nrg models for CO2 and systematically assess how the strength and anisotropy of the CO2-CO2 ...
Shuwen, Yue +4 more
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On Parallel and Distributed N-Body Simulations
MathematicsThe N-body problem is a classic problem involving a system of N discrete bodies mutually interacting in a dynamical system. At any moment in time there are N(N−1)/2 such interactions occurring.
Alexander Brandt
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The generation of vorticity in cosmological N-body simulations [PDF]
Journal of Cosmology and Astroparticle Physics, 2018 Clustering of a perfect fluid does not lead to the generation of vorticity. It is the collisionless nature of dark matter, inducing velocity dispersion and shell crossing, which is at the origin of cosmological vorticity generation. In this paper we investigate the generation of vorticity during the formation of cosmological large scale structure using
Jelic-Cizmek, Goran +3 more
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Frontiers in Astronomy and Space Sciences, 2023 Introduction: Methods based on deep learning have recently been applied to recover astrophysical parameters, thanks to the ability of these techniques to capture information from complex data.
Héctor J. Hortúa +3 more
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N-Body Simulations and the Value of Ω [PDF]
Symposium - International Astronomical Union, 1978 We have recently completed a series of N-body simulations of galaxy clustering in an expanding universe (Aarseth, Gott and Turner 1977). the initial conditions and our results concerning galaxy clustering will be summarized by Sverre Aarseth at this meeting.
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Are long-term N-body simulations reliable? [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT N-body integrations are used to model a wide range of astrophysical dynamics, but they suffer from errors which make their orbits diverge exponentially in time from the correct orbits. Over long time-scales, their reliability needs to be established. We address this reliability by running a three-body planetary system over about
Junichiro Makino +2 more
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Cosmological N-body simulations [PDF]
, 1997 In this review we discuss cosmological N-body codes with a special emphasis on particle mesh codes. We present the mathematical model for each component of N-body codes. We compare alternative methods for computing each quantity by calculating errors for
Bagla, J. S., Padmanabhan, T.
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei +17 more
wiley +1 more source