Compact Galaxies and Compact Parts of Galaxies.

The search for compact galaxies with the 48-inch Schmidt telescope has so far netted on the average about one system brighter than the 17th apparent magnitude per 5 square degrees in extended unobscured regions of the sky. Data obtained on three of these systems with the 200-inch telescope are presented. The diameters of these systems are respectively 12", 2.4", and 6.7", and their spectra are of the types K0, A7, and A peculiar with emission lines. All lines are broad and are shifted to the red, respectively, by amounts equivalent to 1500, 24360, and 6870 km/sec Doppler displacement. The internal velocity dispersion in all three systems is of the order of 640,1210, and 1640 km/sec. Assuming these galaxies to be stationary, indicative masses are 5.1 X 1010 e/f, 7.7 X /J and 1.14 X /f, wheref = 1 for a uniform distribution of mass of the galaxy andf> 1 for a density which increases toward its center. The indicative absolute photographic luminosities are respectively 2.8 X 108 e, 7.6 x 100 e, and 1.9 X 1010X e; and the relative indicative mass4uminosity ratios therefore 182/f, 101/f, and 60/f.