Risa H. Wechsler

TL;DR: In this article, the authors used computational resources at the SLAC National Accelerator Laboratory, a U.S. National Science Foundation (NSF) under Grant No. NSF PHY-1748958 through the Kavli Institute for Theoretical Physics program “The Small Scale Structure of Cold(?) Dark Matter,” and grant no. NGE1656518 through the NSF Graduate Research Fellowship received by E.O.

TL;DR: A new matched filter richness estimator is introduced, and the scatter in the L{sub X}-richness relation depends on the aperture used to estimate cluster richness, and a novel approach for optimizing said aperture is introduced which can be easily generalized to other mass tracers.

TL;DR: Combined results from these probes derive constraints on the equation of state, w, of dark energy and its energy density in the Universe, demonstrating the potential power of large multiprobe photometric surveys and paving the way for order of magnitude advances in constraints on properties ofdark energy and cosmology over the next decade.

TL;DR: In this paper, the authors performed a comprehensive study of the main sources of random and systematic error in stellar mass estimates for galaxies, and their relative contributions to the associated error budget.

TL;DR: In this article, the authors examined the ap- proach of collisionless dark matter to hydrostatic equilibrium using a large N-body simulation evolved to scale factor a = 100, well beyond the vacuum-matter equality epoch, a eq = 0.75, and 53 h − 1 Gyr into the future for a concordance model universe.