Bias is Complicated

Details Bias is Complicated Bias is Complicated

Mar 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ppu..conf...59t&link_type=abstract

PARTICLE PHYSICS AND THE UNIVERSE. Proceedings of Nobel Symposium 109. Held 20-25 August 1998 in Haga Slott, Enköping, Sweden. E

Physics

Cosmology, Galaxy Groups, Clusters, And Superclusters, Large Scale Structure Of The Universe

Scientific paper

We show that the galaxy density in the Las Campanas Redshift Survey (LCRS) cannot be perfectly correlated with the underlying mass distribution since various galaxy subpopulations are not perfectly correlated with each other, even taking shot noise into account. This rules out the hypothesis of simple linear biasing, and suggests that the recently proposed stochastic biasing framework is necessary for modeling actual data.

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