972 citations · 9.1k across the 146 of their papers we have counts for
5 papers · 2 filters
On the streaming motions of haloes and galaxies
Ravi K. Sheth, Antonaldo Diaferio, Lam Hui +1
A simple model of how objects of different masses stream towards each other as they cluster gravitationally is described. The model shows how the mean streaming velocity of dark ma…
Linear and nonlinear contributions to pairwise peculiar velocities
Ravi K. Sheth, Lam Hui, Antonaldo Diaferio +1
We write the correlation function of dark matter particles, xi(r), as the sum of two terms - one which accounts for nonlinear evolution, and dominates on small scales, and another…
Peculiar velocities of galaxies and clusters
Ravi K. Sheth, Antonaldo Diaferio
We present a simple model for the shape of the distribution function of galaxy peculiar velocities. We show how both nonlinear and linear theory terms combine to produce a distribu…
The Infall Region of Abell 576: Independent Mass and Light Profiles
K. Rines, M. J. Geller, A. Diaferio +2
We describe observations of the nearby cluster of galaxies A576 beyond the virial radius and into the infall region. Using 1057 redshifts, we use the infall pattern in redshift spa…
The Spatial and Kinematic Distributions of Cluster Galaxies in a LCDM Universe -- Comparison with Observations
Antonaldo Diaferio, Guinevere Kauffmann, Michael L. Balogh +3
We combine dissipationless N-body simulations and semi-analytic models of galaxy formation to study the spatial and kinematic distributions of cluster galaxies in a LCDM cosmology.…