Southern Isolated Galaxy Triplets

Details Southern Isolated Galaxy Triplets Southern Isolated Galaxy Triplets

Aug 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000arep...44..501k&link_type=abstract

Astronomy Reports, Volume 44, Issue 8, August 2000, pp.501-522

Astronomy and Astrophysics

Astronomy

12

Scientific paper

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°.

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