The Scale of Homogeneity in the Las Campanas Redshift Survey
Open Access
- 20 March 1999
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 514 (1) , L1-L4
- https://doi.org/10.1086/311936
Abstract
We analyze the Las Campanas Redshift Survey using the integrated conditional density (or density of neighbors) in volume-limited subsamples up to unprecedented scales (200 Mpc h-1) in order to determine without ambiguity the behavior of the density field. We find that the survey is well described by a fractal up to 20-30 Mpc h-1 but flattens toward homogeneity at larger scales. Although the data are still insufficient to establish with high significance the expected homogeneous behavior, and therefore to rule out a fractal trend to larger scales, a fit with a cold dark matter-like spectrum with high normalization well represents the data.Keywords
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