Correlation Length of X-ray Brightest Abell Clusters

Details Correlation Length of X-ray Brightest Abell Clusters Correlation Length of X-ray Brightest Abell Clusters

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.530m&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

We compute the cluster auto-correlation function xicc(r) of an X-ray flux limited sample of Abell clusters (XBACs, {ebe}). For the total XBACs sample we find a power-law fit xicc = (r/r_0)gamma with r_0 = 21.1 Mpc h^{-1}and gamma = -1.9 consistent with the results of R >= 1 Abell clusters. We also analyze xicc(r) for subsamples defined by different X-ray luminosity thresholds where we find a weak tendency of larger values of r_0 with increasing X-ray luminosity although with a low statistical significance. In the different subsamples analyzed we find 21 < r_0 < 35 Mpc h^{-1} and -1.9 < gamma < -1.6. Our analysis suggests that cluster X-ray luminosities may be used for a reliable confrontation of cluster spatial distribution properties in models and observations.

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