An Indicator of Nonlinear Gravitational Clustering

Abstract

Alignment of velocity and acceleration before shell crossing, and later misalignment are used to define velocity contrast, an indicator of dynamical state of matter undergoing gravitational collapse. We use this to study bias in clustering properties of dynamically nonlinear mass.

4 pages, uuencoded postscript file. To appear in 'Clusters, Lensing, and the Future of the Universe' ed. V.Trimble and A.Reisenegger