Possible role of collective relaxation in galaxy correlations

Details Possible role of collective relaxation in galaxy correlations Possible role of collective relaxation in galaxy correlations

Jan 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...219l..73p&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 219, Jan. 15, 1978, p. L73-L75.

Mathematics

Logic

20

Cosmology, Galactic Clusters, Galactic Evolution, Relaxation (Mechanics), Astronomical Models, Correlation, Density Distribution, Galactic Structure, Relaxation Time, Spatial Distribution

Scientific paper

The possible importance of collective relaxation effects in establishing the internal structure of cosmological matter condensations is considered. A crude semiquantitative relaxation model for gravitational clustering is examined which predicts a power-law two-point galaxy-correlation function at small distances with an exponent that is independent of cosmological initial conditions and consistent with the value of approximately 1.77 measured through galaxy-correlation studies. It is found that mass and energy conservation alone constrain the exponent in the relation for the final density distribution to a very narrow range.

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