623 citations · 11.8k across the 149 of their papers we have counts for
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Investigating the Origins of Dark Matter Halo Density Profiles
Liliya L. R. Williams, Arif Babul, Julianne J. Dalcanton
Although high-resolution N-body simulations make robust empirical predictions for the density distribution within cold dark matter halos, these studies have yielded little physical…
The Satellite-substructure Connection
James E. Taylor, Arif Babul, Joseph Silk
We describe our recent attempts to model substructure in dark matter halos down to very small masses, using a semi-analytic model of halo formation. The results suggest that numeri…
On the Intracluster Medium in Cooling Flow & Non-Cooling Flow Clusters
Arif Babul, Ian G. McCarthy, Greg B. Poole
Recent X-ray observations have highlighted clusters that lack entropy cores. At first glance, these results appear to invalidate the preheated ICM models. We show that a self-consi…
The nature and space density of fossil groups of galaxies
L. R. Jones, T. J. Ponman, A. Horton +3
We describe the properties of a sample of galaxy groups with very unusual distributions of galaxy luminosities. The most extreme example has an X-ray luminosity similar to that of…
The SZ Effect Signature of Excess Entropy in Distant, Massive Clusters
Ian G. McCarthy, Gilbert P. Holder, Arif Babul +1
Studies of cluster X-ray scaling relations have led to suggestions that non-gravitational processes, e.g., radiative cooling and/or "preheating", have significantly modified the en…
On the Relationship between Cooling Flows and Bubbles
Ian G. McCarthy, Arif Babul, Neal Katz +1
A common feature of the X-ray bubbles observed in Chandra images of some "cooling flow" clusters is that they appear to be surrounded by bright, cool shells. Temperature maps of a…