The angular correlation function of QSOs and Abell clusters.

Details The angular correlation function of QSOs and Abell clusters. The angular correlation function of QSOs and Abell clusters.

Jan 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997acaps..17...21z&link_type=abstract

Acta Astrophys. Sin., Vol. 17, No. 1, p. 21 - 28

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Clusters Of Galaxies: Quasars

Scientific paper

Using the new version of the Hewitt-Burbidge QSO Catalogue and the all-sky catalogue of Abell clusters (ACO, 1989) the author analysed the cross-correlation function between them, and found anti-correlation of QSOs with Abell clusters at a separation of θ > 3°, which is mainly caused by the optically-selected rather than the radio-selected QSOs. This fact is likely to be explained through the extinction by intracluster dust. However, there is no such anti-correlation between the QSOs and Abell clusters at θ < 3°, which implies that there is some tendency of association between the QSOs and clusters. Further analysis indicates that the correlation is not dependent on the redshift of the QSOs, making an explanation by gravitational lensing less likely than otherwise.

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