Max Tegmark, Benjamin C. Bromley
Published 1998-09-25, updated 1999-04-17Version 3
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.
Comments: 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 max@ias.edu
Journal: Astrophys.J.518:L69-L72,1999
The Galaxy-Weighted Small-Scale Velocity Dispersion of the Las Campanas Redshift Survey
Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
Observational Evidence Against Birefringence Over Cosmological Distances
