The Star-Forming Dwarf Galaxy Populations of two z ~ 0.4 Clusters: MS1512.4+3647 and Abell 851

J. M. Lotz, C. L. Martin, H. C. Ferguson

We present the results of a deep narrow-band [OII] 3727 Åemission-line search for faint ($g<$ 27), star-forming galaxies in the field of the $z=0.37$ MS1512.4+3647 cluster. We fin…