Observational evidence for stochastic biasing

Abstract

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.

4 pages, with 2 figures included. Minor revisions to match accepted ApJL version. Links and color fig at http://www.sns.ias.edu/~max/r_frames.html or from [email protected]

References in corpus (15)

• Weighing Neutrinos with Galaxy Surveys
• Cosmic Complementarity: Joint Parameter Estimation from CMB Experiments and Redshift Surveys
• The Angular Clustering of Lyman-Break Galaxies at Redshift z=3
• The time-evolution of bias
• Constraints on the Effects of Locally-biased Galaxy Formation
• Spectral Classification and Luminosity Function of Galaxies in the Las Campanas Redshift Survey
• Modelling galaxy clustering at high redshift
• Reconstructing Nonlinear Stochastic Bias from Velocity Space Distortions
• Observationally Determining the Properties of Dark Matter
• Implications of Spikes in the Redshift Distribution of $z\sim 3$ Galaxies
• Evolution of Galaxy and Quasar Clustering
• Stochastic Biasing and Galaxy-Mass Density Relation in the Weakly Non-linear Regime
• On the spatial distribution of dark matter halos
• Quasi Non-linear Evolution of Stochastic Bias
• Excursion set approach to the clustering of dark matter haloes in Lagrangian space

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