| Abstract | Seventy-six isolated triple systems of galaxies with declinatiosn δ<-3° were selected using ESO/SERC and POSS-I sky survey data. The equatorial coordinates, configuration types, angular sizes, component angular separations, component morphological types, total magnitudes, and other parameters are reported for each triplet. Radial-velocity estimates are available for all components in 33 of the 76 triplets. The median values of the main dynamical parameters—radial-velocity dispersion, mean harmonic radius, absolute magnitudes of member galaxies, and mass-to-luminosity ratios—are similar to those obtained earlier for 83 isolated triple systems with δ>-3°. |
