Correlated statistical fluctuations and galaxy formation

Details Correlated statistical fluctuations and galaxy formation Correlated statistical fluctuations and galaxy formation

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...309...13r&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 309, Oct. 1, 1986, p. 13-18.

Astronomy and Astrophysics

Astrophysics

3

Cosmology, Galactic Clusters, Galactic Evolution, Gravitational Collapse, Correlation, Hierarchies, Hydrodynamics

Scientific paper

Particles which interact only gravitationally have statistical density fluctuations which are enhanced over the Poisson value. The authors show that even small correlations can substantially reduce the initial amplitude required for density fluctuations to produce galaxies in hierarchical clustering theories. The growth of the mass of correlated bound systems at epoch R will be faster than the R2 growth of uncorrelated Poisson clustering.

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