Astron. Astrophys. Suppl. Ser.
Volume 125, Number 2, October II 1997
|Page(s)||329 - 335|
|Published online||15 October 1997|
Radial velocities and spectrophotometric properties of southern binary galaxies*
Astronomy Department, University of São Paulo, C.Postal 9638, SP 01065-970, Brazil
2 Observatório Nacional–DAN, C.Postal 23002, RJ 20921-400, Brazil
3 Visiting Astronomer, Cerro Tololo Inter-American Observatory
Send offprint request to: R.E. de Souza
Accepted: 10 January 1997
We present spectrophotometry of a sample of 26 Southern binary galaxies 17 pairs were confirmed to be physically associated with typical separation of . Pairs with velocity difference are probably not physically bound. A comparison with field galaxies suggests that galaxies in pairs tend to have a younger population probably stimulated by tidal interaction. No correlation between the young population and projected separation was found.
Key words: galaxies: interactions / galaxies: stellar content
Table 1 is also available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130 79 128 5) or via http://cdsweb.u-strasbg.fr/Abstract.html
© European Southern Observatory (ESO), 1997