Do voids cluster?

Details Do voids cluster? Do voids cluster?

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994pasp..106...67h&link_type=abstract

Publications of the Astronomical Society of the Pacific, vol. 106, no. 695, p. 67-70

Astronomy and Astrophysics

Astronomy

3

Clusters, Correlation, Cosmology, Dark Matter, Poisson Density Functions, Spatial Distribution, Voids, Astronomical Catalogs, Declination, Trigonometry

Scientific paper

A dendrogram analysis is performed on an updated catalog of voids to determine whether voids cluster. Some clustering is evident with a characteristic scale of 59 Mpc/h. This trend is more dominant in the Northern Hemisphere where the data are more complete. Southern Hemisphere data also show clustering effects, but rather weakly, possibly due to limited data. Results of the analysis are corroborated by checking the void distribution against a Poisson distribution and also by a two-point correlation function among the voids. However, the findings of the present paper do not correspond to the standard cold dark matter (CDM) scenario. Nevertheless, it is suggested that the seeds from which voids are formed may have originated with a biased distribution.

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