HST images of cluster members

Sample grey scale images of cluster members of MS0451.6-0305 and RXJ1226.9+3332 made from Hubble Space Telescope imaging. The field size for each galaxy corresponds to approximately 75 kiloparsecs × 75 kiloparsecs at the distances of the two clusters. The analysis focuses on the elliptical and lenticular galaxies in the clusters, while spiral galaxies are excluded.