Testing adiabatic contraction with SDSS elliptical galaxies (2009)
Schulz, A. E., Mandelbaum, Rachel, Padmanabhan, Nikhil
We study the profiles of 75 086 elliptical galaxies from the Sloan Digital Sky Survey (SDSS) at both large (50-500 kpc/h) and small (~3 kpc/h) scales. Weak lensing observations in the outskirts of...
Calibrating photometric redshift distributions with cross-correlations (2009)
The next generation of proposed galaxy surveys will increase the number of galaxies with photometric redshifts by two orders of magnitude, drastically expanding both redshift range and detection...
Challenges facing young astrophysicists (2009)
Zakamska, N. L., Schulz, A. E., Heng, K., Juric, M., Kocsis, B., Kuhlen, M., ...
In order to attract and retain excellent researchers and diverse individuals in astrophysics, we recommend action be taken in several key areas impacting young scientists: (1) Maintain balance...
Close Pairs as Proxies for Galaxy Cluster Mergers (2007)
Wetzel, Andrew R., Schulz, A. E., Holz, Daniel E., Warren, Michael S.
Galaxy cluster merger statistics are an important component in understanding the formation of large-scale structure. Unfortunately, it is difficult to study merger properties and evolution directly...
Simulations of Baryon Oscillations (2006)
Huff, Eric, Schulz, A. E., White, Martin, Schlegel, David J., Warren, Michael S.
The coupling of photons and baryons by Thomson scattering in the early universe imprints features in both the Cosmic Microwave Background (CMB) and matter power spectra. The former have been used to...
Scale-dependent bias and the halo model (2005)
We use a simplified version of the halo model with a power law power spectrum to study scale dependence in galaxy bias at the very large scales relevant to baryon oscillations. In addition to...
Characterizing the Shapes of Galaxy Clusters Using Moments of the Gravitational Lensing Shear (2005)
Schulz, A. E., Hennawi, Joseph, White, Martin
We explore the use of the tangential component of weak lensing shear to characterize the ellipticity of clusters of galaxies. We introduce an ellipticity estimator, and quantify its properties for...
Priliminary Modeling of Air Breakdown with the ICEPIC code (2004)
Schulz, A. E., Greenwood, A. D., Cartwright, K. L., Mardahl, P. J., Peterkin, R. E., Bruner, N., ...
Interest in air breakdown phenomena has recently been re-kindled with the advent of advanced virtual prototyping of radio frequency (RF) sources for use in high power microwave (HPM) weapons...
Hybrid Particle-Fluid Modeling of Plasmas (2004)
Schulz, A. E., Greenwood, A. D., Cartwright, K. L., Mardahl, P. J.
There are many interesting physical processes which involve the generation of high density plasmas in large volumes. However, when modeling these systems numerically, the large densities and volumes...
Surveys of Galaxy Clusters with the Sunyaev Zel'dovich Effect (2002)
We have created mock Sunyaev-Zel'dovich effect (SZE) surveys of galaxy clusters using high resolution N-body simulations. To the pure surveys we add `noise' contributions appropriate to instrument...
Levine, E. S., Schulz, A. E., White, Martin
Using the Fisher matrix formalism, we quantitatively investigate the constraints on a 10 dimensional space of cosmological parameters which may be obtained with future cluster surveys. We explore the...
The Tensor to Scalar Ratio of Phantom Dark Energy Models (2001)
We investigate the anisotropies in the cosmic microwave background in a class of models which possess a positive cosmic energy density but negative pressure, with a constant equation of state w =...