The accelerating expansion of the universe is the most surprising cosmological discovery in
many decades, implying that the universe is dominated by some form of “dark energy” with …

All cosmological observations to date are consistent with adiabatic, Gaussian and nearly
scale invariant initial conditions. These findings provide strong evidence for a particular …

Several recent studies have shown how to properly calculate the observed clustering of
galaxies in a relativistic context, and uncovered corrections to the Newtonian calculation that …

We review the current understanding of the Diffuse Gamma-Ray Background (DGRB). The
DGRB is what remains of the total measured gamma-ray emission after the subtraction of the …

We report on the first application of the Alcock–Paczynski test to stacked voids in
spectroscopic galaxy redshift surveys. We use voids from the Sutter et al. void catalog, which …

We present two large cosmological N-body simulations, called Horizon Run 2 (HR2) and
Horizon Run 3 (HR3), made using 6000^ 3= 216 billions and 7210^ 3= 374 billion particles …

Abstract The Large Synoptic Survey Telescope (LSST) is a high étendue imaging facility that
is being constructed atop Cerro Pachón in northern Chile. It is scheduled to begin science …

The discovery of cosmic acceleration is one of the most important developments in modern
cosmology. The observation, thirteen years ago, that type Ia supernovae appear dimmer that …

ABSTRACT We identify 885,503 type 1 quasar candidates to i 22 using the combination of
optical and mid-IR photometry. Optical photometry is taken from the Sloan Digital Sky Survey …

Semi-analytical methods, based on Eulerian perturbation theory, are a promising tool to
follow the time evolution of cosmological perturbations at small redshifts and at mildly …