Understanding Gravitational Clustering with Non-Linear Perturbation Theory
Abstract
Description
I discuss new results concerning the evolution of the bispectrum due to gravitational instability from gaussian initial conditions using one-loop perturbation theory (PT). Particular attention is paid to the transition from weakly non-linear scales to the non-linear regime at small scales. Comparison with numerical simulations is made to assess the regime of validity of the perturbative approach.
3 pages with 1 figure, uses sprocl.sty, to appear in the Proceedings of the 18th Texas Symposium on Relativistic Astrophysics, ed. A. Olinto, J. Frieman and D. Schramm (World Scientific, Singapore, 1997)
3 pages with 1 figure, uses sprocl.sty, to appear in the Proceedings of the 18th Texas Symposium on Relativistic Astrophysics, ed. A. Olinto, J. Frieman and D. Schramm (World Scientific, Singapore, 1997)