311 citations · 416 across the 6 of their papers we have counts for
6 papers
The Effects of Varying Cosmological Parameters on Halo Substructure
Gregory A. Dooley, Brendan F. Griffen, Phillip Zukin +4
We investigate how different cosmological parameters, such as those delivered by the WMAP and Planck missions, affect the nature and evolution of dark matter halo substructure. We…
Scale-Dependent Growth from a Transition in Dark Energy Dynamics
Mustafa A. Amin, Phillip Zukin, Edmund Bertschinger
We investigate the observational consequences of the quintessence field rolling to and oscillating near a minimum in its potential, "if" it happens close to the present epoch (z<0.…
Velocity Structure of Self-Similar Spherically Collapsed Halos
Phillip Zukin, Edmund Bertschinger
Using a generalized self-similar secondary infall model, which accounts for tidal torques acting on the halo, we analyze the velocity profiles of halos in order to gain intuition f…
Self-Similar Spherical Collapse with Tidal Torque
Phillip Zukin, Edmund Bertschinger
N-body simulations have revealed a wealth of information about dark matter halos however their results are largely empirical. Using analytic means, we attempt to shed light on simu…
Reconstructing the Peculiar Velocity of the Local Group with Modified Gravity and 2MASS
Aidan C Crook, Alessandra Silvestri, Phillip Zukin
The peculiar velocity of the Local Group, reconstructed from inhomogeneities in the local density field, differs in direction and magnitude from the velocity inferred from the Cosm…
Distinguishing Modified Gravity from Dark Energy
Edmund Bertschinger, Phillip Zukin
The acceleration of the universe can be explained either through dark energy or through the modification of gravity on large scales. In this paper we investigate modified gravity m…