Galaxy-qso Cross-correlations: Comparison Of Results From A Variety Of Galaxy And QSO Samples

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

The discrepancy of as much as a factor of 20 in the magnitude of modeled vs. measured galaxy-QSO cross-correlations has been a long-standing issue. Recent work by the Sloan Digital Sky Survey consortium seems to have resolved the conflict with a combination of improved models and the large, uniformly selected SDSS QSO data set. We compare a number of galaxy-QSO cross-correlation measurements to check for consistency among various galaxy and QSO catalogues in an attempt to reconcile measurements from a number of studies under the context of magnification bias.

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