galaxy_clusters.md

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title	Galaxy Clusters

Galaxy clusters are the largest gravitationally bound structures in the universe and provide a very strong probe of dark energy. Due to their size, more than $10^{14}M_\odot$, they trace the peaks in the matter distribution very well highlighting the large scale structure of the universe. The upcoming LSST run will provide the largest cluster catalog to date, capable of pushing statical uncertainties in cluster related cosmological analyses well below systematic uncertainties.