Quantitative Analysis of the Void Size Distribution in the Lcrs and in Cdm Models
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چکیده
We have analyzed the size distribution of voids in 2D slices of the Las Campanas Redshift Survey (LCRS). The characteristic sizes show a scaling D = D0+νλ with the mean galaxy separation λ. Comparison with mock samples of the LCRS in 2D and 3D, using various simulations, cosmologies and galaxy identification schemes, gives a similar scaling, but with steeper slope and a lack of large voids. Best results are obtained for dark matter halos in a ΛCDM model.
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تاریخ انتشار 2001