5k citations · 36.6k across the 347 of their papers we have counts for
5 papers · 2 filters
Finding Fossil Groups: Optical Identification and X-ray Confirmation
Eric D. Miller, Eli Rykoff, Renato Dupke +6
We report the discovery of 12 new fossil groups of galaxies, systems dominated by a single giant elliptical galaxy and cluster-scale gravitational potential, but lacking the popula…
On the mass-to-light ratios of fossil groups. Are they simply dark clusters?
Robert N. Proctor, Claudia Mendes de Oliveira, Renato Dupke +4
Defined as X-ray bright galaxy groups with large differences between the luminosities of their brightest and second brightest galaxies, "fossil groups" are believed to be some of t…
Scaling Relations and Overabundance of Massive Clusters at z>~1 from Weak-Lensing Studies with HST
M. J. Jee, K. S. Dawson, H. Hoekstra +22
We present weak gravitational lensing analysis of 22 high-redshift (z >~1) clusters based on Hubble Space Telescope images. Most clusters in our sample provide significant lensing…
Extrinsic Sources of Scatter in the Richness-Mass Relation of Galaxy Clusters
Eduardo Rozo, Eli Rykoff, Benjamin Koester +4
Maximizing the utility of upcoming photometric cluster surveys requires a thorough understanding of the richness-mass relation of galaxy clusters. We use Monte Carlo simulations to…
Robust Optical Richness Estimation with Reduced Scatter
E. S. Rykoff, B. P. Koester, E. Rozo +7
Reducing the scatter between cluster mass and optical richness is a key goal for cluster cosmology from photometric catalogs. We consider various modifications to the red-sequence…