Results 11 to 20 of about 783,982 (246)
Velocity dispersion in N-body simulations of CDM models [PDF]
, 2001 This work reports on a study of the spatially coarse-grained velocity dispersion in cosmological N-body simulations (OCDM and Lambda-CDM models) as a function of time (redshifts z=0-4) and of the coarsening length (0.6-20 Mpc/h).
Dominguez, Alvaro
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N-body simulations of star clusters
, 2007 Two aspects of our recent N-body studies of star clusters are presented: (1) What impact does mass segregation and selective mass loss have on integrated photometry?
Anders +4 more
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Journal of Computational and Applied Mathematics, 1999 32 pages, 13 figures, in press in Riffert, H., Werner K. (eds), Computational Astrophysics, The Journal of Computational and Applied Mathematics (JCAM), Elsevier Press, Amsterdam ...
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Gravitational clustering in N-body simulations
, 2001 In this talk we discuss some of the main theoretical problems in the understanding of the statistical properties of gravity. By means of N-body simulations we approach the problem of understanding the r\^ole of gravity in the clustering of a finite set ...
Amici, A. +5 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.
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Dark energy perturbations in $N$-body simulations
, 2019 We present $N$-body simulations which are fully compatible with general relativity, with dark energy consistently included at both the background and perturbation level.
Dakin, Jeppe +4 more
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Accurate estimators of power spectra in N-body simulations [PDF]
, 2008 abridged] A method to rapidly estimate the Fourier power spectrum of a point distribution is presented. This method relies on a Taylor expansion of the trigonometric functions. It yields the Fourier modes from a number of FFTs, which is controlled by the
Abazajian +43 more
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Relativistic N-body simulations with massive neutrinos [PDF]
Journal of Cosmology and Astroparticle Physics, 2017 26 pages + appendix, 17 figures; v2: minor revision, published version; code available at https://github.com/gevolution-code/gevolution-1 ...
Adamek, Julian +2 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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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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