The CNOC cluster redshift survey catalogs. V. MS 1224.7+2007 and MS 1512.4+3647

Photometric and redshift catalogs of galaxies in the field of two rich galaxy clusters: MS 1224.7 + 2007 (z = 0.327) and MS 1512.4 + 3647 (z = 0.372) are presented as part of the CNOC cluster redshift survey carried out at the Canada-France-Hawaii Telescope (CFHT) using the MOS imaging multiobject spectrograph. The imaging and spectroscopic observations span three contiguous MOS fields in the east-west direction for MS 1512.4 + 3647, covering a total area of approximately 8.'0 x 27.'3. A single field of 7.'1 x 9.'0 was obtained for MS 1224.7+2007. Redshifts for 287 galaxies in the MS 1512.4+3647 fields and 75 galaxies in the MS 1224.7+2007 field (primarily ranging in magnitude from r = 18-22) were obtained. The spectroscopic information in this paper is supplemented by photometric information for all galaxies in the fields down to Gunn r = 21 mag. The data set is also presented graphically in several forms. The magnitude, color, and geometric selection functions for the redshift sample are presented and discussed.