Angular pair correlations of observed and simulated galaxy distributions

Details Angular pair correlations of observed and simulated galaxy distributions Angular pair correlations of observed and simulated galaxy distributions

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990cajph..68..827w&link_type=abstract

Canadian Journal of Physics (ISSN 0008-4204), vol. 68, Sept. 1990, p. 827-830.

Physics

Angular Correlation, Galaxies, Spatial Distribution, Astronomical Catalogs, Morphology, Universe

Scientific paper

The main body of quantitative information about galaxy statistics is obtained from correlation studies. It has recently turned out that a modified correlation formalism can provide details about large-scale structure in the galaxy distribution, which are obscured by artifacts of the conventional correlation function. The modified pair correlation function, as applied to the Zwicky catalogue of galaxies, shows two distinct power-law regimes at small scales (less than 1 deg) and large scales (around 10 deg). Based on the comparison of simulated bubblelike large-scale structures with the Zwicky sample, these regimes are interpreted to correspond to the distribution of galaxies within the shells of the bubbles (small scale), and the distribution of the bubbles themselves (large scale).

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