A novel approach for weighing galaxy clusters
Galaxy clusters trace the matter density of the universe, and by counting clusters as a function of mass and redshift, cosmologists can learn about the expansion rate of the Universe
Finding needles in the cosmological haystack with the SZ effect
A new cluster of galaxies discovered in the early universe using the Sunyaev-Zel’dovich (SZ) effect could have important consequences for studying galaxy evolution and cosmology.