Cosmological Dependence of Cluster Density Profiles
Session 30 -- Clusters of Galaxies
Display presentation, Tuesday, 9:30-6:30, Pauley Room

## [30.16] Cosmological Dependence of Cluster Density Profiles

Mary M. Crone, A. E. Evrard, D. O. Richstone (University of Michigan)

We report the results of a study of cluster density profiles using n-body simulations. The results for cosmologies with $\Omega_o = 1.0; \Omega_o = 0.2$; and $\Omega_o = 0.2, \lambda_o = 0.8$ are compared for initial power spectra $P(k) = Ak^n$, where $n = -2, -1, 0$. We note distinct differences between these cosmologies and show that the $\Omega$-dependence of the profile slope is not masked by the $n$-dependence. We also demonstrate the inadequacy of certain simple models, notably flat core models, in fitting the profiles.