832 citations · 6.1k across the 73 of their papers we have counts for
5 papers · 1 filter
A generalized local ansatz and its effect on halo bias
Sarah Shandera, Neal Dalal, Dragan Huterer
Motivated by the properties of early universe scenarios that produce observationally large local non-Gaussianity, we perform N-body simulations with non-Gaussian initial conditions…
The Origin of Dark Matter Halo Profiles
Neal Dalal, Yoram Lithwick, Michael Kuhlen
A longstanding puzzle of fundamental importance in modern cosmology has been the origin of the nearly universal density profiles of dark matter halos found in N-body simulations --…
Cores and Cusps in Warm Dark Matter Halos
Francisco Villaescusa-Navarro, Neal Dalal
The apparent presence of large core radii in Low Surface Brightness galaxies has been claimed as evidence in favor of warm dark matter. Here we show that WDM halos do not have core…
Self-Similar Solutions of Triaxial Dark Matter Halos
Yoram Lithwick, Neal Dalal
We investigate the collapse and internal structure of dark matter halos. We consider halo formation from initially scale-free perturbations, for which gravitational collapse is sel…
Large-scale BAO signatures of the smallest galaxies
Neal Dalal, Ue-Li Pen, Uros Seljak
Recent work has shown that at high redshift, the relative velocity between dark matter and baryonic gas is typically supersonic. This relative velocity suppresses the formation of…