Cluster correlations - A test for biased scenarios

Details Cluster correlations - A test for biased scenarios Cluster correlations - A test for biased scenarios

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...324..653m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 324, Jan. 15, 1988, p. 653-663. Research supported by the Universidad de Sa

Other

12

Autocorrelation, Cosmology, Dark Matter, Galactic Clusters, Astronomical Models, Covariance, Cross Correlation, Relic Radiation, Spatial Distribution

Scientific paper

The cluster autocorrelation function ξc and the galaxy-cluster cross-correlation ξgc are used to test the biased structure formation in several scenarios. A scale-free spectrum can reproduce the observed cluster autocorrelation function ξc, but it is in contradiction to ξgc. On the other hand, acceptable results are obtained for ξgc in cold dark matter scenarios with adiabatic and isocurvature fluctuations. However, these scenarios are incompatible with ξc.

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