Dj. Norman et Llr. Williams, Weak lensing-induced correlations between 1 Jy QSOs and APM galaxies on angular scales of a degree, ASTRONOM J, 119(5), 2000, pp. 2060-2067
We find angular correlations between high-redshift radio-selected QSOs from
the 1 Jy catalog and Automatic Plate Measuring Facility (APM) galaxies on
less than or similar to 1 degrees scales. We demonstrate that observed corr
elations are qualitatively consistent with a gravitational lensing explanat
ion and are inconsistent with a Galactic dust obscuration model. Comparing
our results with those of Benitez & Martinez-Gonzalez, who also use 1 Jy so
urces and APM galaxies, we come to the conclusion that galaxy selection cri
teria can have a major effect on the angular scale and amplitude of detecte
d correlations.