Clustering velocities in the adiabatic picture of galaxy formation

Details Clustering velocities in the adiabatic picture of galaxy formation Clustering velocities in the adiabatic picture of galaxy formation

Nov 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.205..637m&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 205, Nov. 1983, p. 637-641.

Mathematics

Logic

12

Astronomical Models, Galactic Clusters, Galactic Evolution, Gravitational Collapse, Adiabatic Conditions, Computerized Simulation, Density Distribution, Hubble Constant, Mass Distribution, Velocity Distribution, Voids

Scientific paper

An analysis of the velocity field in a numerical simulation of gravitational clustering of matter under adiabatic perturbations is presented. The peculiar velocities at the boundaries of voids are much less than the diameter of the void multiplied by the Hubble constant. Infall velocities into mass concentrations are much lower than in spherically symmetric models, so that these may severely underestimate Ω, the cosmological density parameter.

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