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Cosmic Census: Relative Distributions of Dark Matter, Galaxies and Diffuse Gas
Raphaël Kou, James G. Bartlett
Galaxies, diffuse gas, and dark matter make up the cosmic web that defines the large-scale structure of the Universe. We constrained the joint distribution of these constituents by…
Measuring weak lensing masses on individual clusters
Calum Murray, James G. Bartlett, Emmanuel Artis +1
We present weak lensing mass estimates for a sample of 458 galaxy clusters from the redMaPPer Sloan Digital Sky Survey DR8 catalogue using Hyper Suprime-Cam weak lensing data. We d…
Snowmass 2021 CMB-S4 White Paper
Kevork Abazajian, Arwa Abdulghafour, Graeme E. Addison +353
This Snowmass 2021 White Paper describes the Cosmic Microwave Background Stage 4 project CMB-S4, which is designed to cross critical thresholds in our understanding of the origin a…
Galaxy cluster number counts with individual lensing mass estimates: forecasts for Euclid
E. Artis, J-B Melin, J. G. Bartlett +1
Gradually, the CDM model starts to be challenged by observational data. Upcoming cosmological surveys will increase the number of detected galaxy clusters by several orders of m…
Impact of the calibration of the Halo Mass Function on galaxy cluster number count cosmology
Emmanuel Artis, Jean-Baptiste Melin, James G. Bartlett +1
The halo mass function (HMF) is a critical element in cosmological analyses of galaxy cluster catalogs. We quantify the impact of uncertainties in HMF parameters on cosmological co…
PSZSPT: a joint Planck and SPT-SZ cluster catalog
J. -B. Melin, J. G. Bartlett, P. Tarrío +1
We present the first cluster catalog extracted from combined space-based (Planck) and ground-based (South Pole Telescope; SPT-SZ) millimeter data. We developed and applied a matche…