The Infrared Surface Brightness Fluctuation Distances to the Hydra and Coma Clusters
The Infrared Surface Brightness Fluctuation Distances to the Hydra and Coma Clusters
We present IR surface brightness fluctuation (SBF) distance measurements to NGC 4889 in the Coma Cluster and to NGC 3309 and NGC 3311 in the Hydra Cluster. We explicitly corrected for the contributions to the fluctuations from globular clusters, background galaxies, and residual background variance. We measured a distance of …