Weak Lensing Induced Correlations Between 1 Jy QSOs and APM Galaxies on Angular Scales of a Degree

Details Weak Lensing Induced Correlations Between 1 Jy QSOs and APM Galaxies on Angular Scales of a Degree Weak Lensing Induced Correlations Between 1 Jy QSOs and APM Galaxies on Angular Scales of a Degree

1999-08-17

arxiv.org/abs/astro-ph/9908177v1

Astronomy and Astrophysics

Astrophysics

14 pages, 6 figures

Scientific paper

10.1086/301343

We find angular correlations between high redshift radio selected QSOs from the 1 Jy Catalog and APM galaxies on ~1 degree scales. We demonstrate that observed correlations are qualitatively consistant with a gravitational lensing explanation and are inconsistant with a Galactic dust obscuration model. Comparing our results with those of Benitez and Martinez-Gonzalez, who also use 1 Jy sources and APM galaxies we come to the conclusion that galaxy selection criteria can have a major effect on the angular scale and amplitude of detected correlations.

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