Velocity dispersion profiles of N-body simulations

Details Velocity dispersion profiles of N-body simulations Velocity dispersion profiles of N-body simulations

Aug 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ap%26ss..64..319s&link_type=abstract

Astrophysics and Space Science, vol. 64, no. 2, Aug. 1979, p. 319-337.

Astronomy and Astrophysics

Astrophysics

1

Astronomical Models, Celestial Mechanics, Many Body Problem, Velocity Distribution, Computerized Simulation, Galactic Clusters, Gravitational Effects, Kinetic Energy, Kolmogoroff-Smirnoff Test, Mass Distribution

Scientific paper

The time evolution of the velocity dispersion as a function of radius, called sigma-v profiles, of the three N-body simulations of Wielen (1974), expressed in units of r/R(G) (where R(G) is the gravitational or virial radius), are discussed as a function of mass sample. The evolution of the radial and tangential components of the velocity dispersion is examined, and each of the sigma-v profiles is fitted to a simple power law in the halo (r/R(G) values between 0.15 and 2.0). Several structural features which appear at late time intervals are described.

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