Results 21 to 30 of about 17,955,789 (263)
The complexity of N-body simulation [PDF]
, 1993 The n-body simulation problem is stated as follows: Given initial positions and velocities of n particles that have pair-wise force interactions, simulate the movement of these particles so as to determine the positions of the particles at a future time.
John H. Reif, Stephen R. Tate
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Investigating rotation in young massive clusters by means of hydrodynamical and direct N-body simulations [PDF]
, 2022 One of the main open questions of star formation is the process of star clusters aggregation. In my thesis I investigate the kinematical features of embedded star clusters through hydrodynamical and N-body simulations.
Di Carlo, Ugo Niccolò
core
The Astrophysical Journal, 2023 We investigate the influence of Toomre’s Q parameter on the bar-forming dynamics of the Maclaurin disk using N -body simulations. According to Toomre’s criterion, the local velocity dispersion parametrized by Q ≥ 1 is required to suppress the local ...
T. Worrakitpoonpon
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On Distributed Gravitational N-Body Simulations
CoRR, 2022 The 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. This scaling as N^2 leads to computational difficulties where simulations range from tens of thousands of bodies to many millions.
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Collisional Growth and Fragmentation of Dust Aggregates. II. Mass Distribution of Icy Fragments
The Astrophysical Journal, 2023 By performing N -body simulations, we investigated the fundamental processes of collisions between dust aggregates composed of submicron-sized icy dust monomers.
Yukihiko Hasegawa +4 more
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Halo modelling in chameleon theories [PDF]
, 2014 We analyse modelling techniques for the large-scale structure formed in scalar-tensor theories of constant Brans-Dicke parameter which match the concordance model background expansion history and produce a chameleon suppression of the gravitational ...
Lombriser, Lucas +5 more
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Self-consistent Spin, Tidal, and Dynamical Equations of Motion in the REBOUNDx Framework
The Astrophysical Journal, 2023 We introduce self-consistent spin, tidal, and dynamical equations of motion into REBOUNDx , a library of additional effects for the popular N -body integrator REBOUND .
Tiger Lu +6 more
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A hybrid SPH/N-body method for star cluster simulations [PDF]
, 2013 We present a new hybrid smoothed particle hydrodynamics (SPH)/N-body method for modelling the collisional stellar dynamics of young clusters in a live gas background.
Goodwin, S.P. +3 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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An optimum time-stepping scheme for N-body simulations [PDF]
, 2007 We present a new time-stepping criterion for N-body simulations that is based on the true dynamical time of a particle. This allows us to follow the orbits of particles correctly in all environments since it has better adaptivity than previous time ...
Moore, Ben +4 more
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