The cluster-galaxy cross-correlation and the average infall velocity around cluster in the modified CDM models.

Details The cluster-galaxy cross-correlation and the average infall velocity around cluster in the modified CDM models. The cluster-galaxy cross-correlation and the average infall velocity around cluster in the modified CDM models.

Oct 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998sccha..41.1092l&link_type=abstract

Science in China, Series A, Vol. 41, No. 10, p. 1092 - 1099

Mathematics

Logic

1

Cosmological Models: Dark Matter

Scientific paper

The cluster-galaxy cross-correlation and the average infall velocity around cluster for the tilted CDM models, the hot-cold mixed dark matter models (MDM) and the ΛCDM models are calculated. It is found that the prediction of the cluster-galaxy cross-correlation of the ΛCDM models with ΩΛ= 0.9, Ωc= 0.1, h = 1, b = 1 or 2 is much higher than that of observation for the radius larger than 10 h-1Mpc (H0= 100 h km s-1Mpc-1), and the other models are compatible with the observation on the scale of (3 - 20) h-1Mpc. The results can be used to compare with new observations to restrict the nature of the dark matter and the biasing factor.

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