Скачать или смотреть Anja von der Linden : Cosmology with Galaxy Clusters

Speaker : Prof. Anja von der Linden (Stony Brook University)
Date : May 14th, 2024
Title : Cosmology with Galaxy Clusters
Abstract: The observed number of galaxy clusters provides a sensitive
probe of the structure of the Universe by measuring the
evolution of the halo mass function. However, already current
cluster surveys are systematically limited by uncertainties
in the relation between cluster mass and observables (e.g. the
number of galaxies, X-ray luminosity, or the imprint on the
Cosmic Microwave Background). I will discuss the challenges
in determining mass-observable relations, and how the combination
of multi-wavelength observations, including weak gravitational
lensing, can address these. I will summarize current cluster
cosmology results for the different selection techniques,
including some of the tightest constraints on the dark energy
equation of state from a single probe, and will comment on the
role of projection effects for optically selected cluster samples.
I will conclude with an outlook towards cluster cosmology with
upcoming sky surveys, especially with Rubin/LSST.