Search of the 3-point correlation function for quasars

Details Search of the 3-point correlation function for quasars Search of the 3-point correlation function for quasars

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aj....102..495b&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 102, Aug. 1991, p. 495-501.

Astronomy and Astrophysics

Astronomy

7

Astronomical Models, Galactic Clusters, Galactic Evolution, Quasars, Correlation Coefficients, Red Shift, Universe

Scientific paper

Detecting a three-point correlation function for a set of clustered objects gives significant information on the nature of the clustering. Analyzing available quasar samples, it is found that their three-point correlation function does not vanish, but is likely to be smaller than for ordinary galaxies. A clustering model based on the Kirkwood superposition hypothesis, as expected for objects related to very high fluctuation peaks, seems to be excluded. Rather, the possibility that quasars are a phenomenon associated with primeval galaxy evolution seems favored. The analysis is significant also from a technical point of view, as it outlines some difficulties found when analyzing a sample consisting of many small subsamples, and how they can be possibly overcome.

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