The Fluid Mechanics of Gravitational Structure Formation in the Early Universe:
What is the Dark Matter?

Carl H. Gibson, Professor

Department of Mechanical and Aerospace Engineering
Scripps Institute of Oceanography
University of California at San Diego

Abstract-
Turbulence was inhibited by photon viscosity and damped by buoyancy forces of the first structures as the expanding primordial plasma fragmented into proto-supercluster to proto-galaxy objects at viscous Schwarz scales starting 30,000 years after the Big Bang. After photon decoupling at 300,000 years, the nonturbulent neutral primordial gas fragmented into proto-globular-cluster mass clumps of small planetary mass objects that persist as the galactic dark matter according to a new gravitational condensation theory of Gibson 1996, supporting the Schild 1996 suggestion from measured twinkling frequencies of lensed quasar images that the mass of the lens galaxy is dominated by "rogue planets ... likely to be the missing mass". The weakly collisional nonbaryonic dark matter diffused to fill the voids, eventually fragmenting at diffusive Schwarz scales to form the observed superhalos of galaxy clusters. (See pictures and preprints at my home page).


GALCIT Home Page
Fluids Seminar Page


Maintained by: Bradford Sturtevant and Murtuza Lockhandwalla
EMail: B. Sturtevant
Last modified: Fri Oct 1 13:25:38 PDT 1999