Statistics – Computation
Scientific paper
Nov 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pasp..100.1336f&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 100, Nov. 1988, p. 1336-1339.
Statistics
Computation
2
Astronomical Models, Computational Astrophysics, Cosmology, Galaxies, Topology, Universe, Dark Matter, Robustness (Mathematics), Scaling Laws, Spatial Distribution, Voids
Scientific paper
In so-called hierarchical universes the probability that a volume of given size and shape placed at random be void of galaxies obeys a scaling law in properly-chosen variables. This allows a robust test of the nature of large-scale cosmological structure, one that is not susceptible to artifacts of selection by morphological type, brightness, or otherwise in observations, or to the precise amount of evolution or the resolution of numerical simulations. Comparison between data and numerical simulations suggests that the observed galaxy distribution is most compatible with nearly scale-free initial conditions such as Poisson "isothermal" or cold dark matter.
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