Astron. Astrophys. Suppl. Ser.
Volume 125, Number 2, October II 1997
|Page(s)||247 - 253|
|Published online||15 October 1997|
Redshift of clusters and galaxies towards the Shapley Concentration*
Departamento de Astronomía y Astrofísica, Pontificia Universidad Católica de Chile, Casilla 104, Santiago 22, Chile
2 European Southern Observatory, Casilla 19001, Santiago 19, Chile
3 Observatoire de Paris, Section de Meudon, DAEC, F-92195 Meudon Cedex, France
Send offprint request to: H. Quintana
Accepted: 19 December 1996
We report velocity measurements of galaxies in this, the densest mass concentration within , obtained with the multifiber spectrograph MEFOS at ESO, La Silla. We derive redshifts of a number of Abell clusters and draw implications for the supercluster structure. The clusters A3554, A3566, A3577 and AS718 are confirmed as members, while the clusters A3524, A3531, A3542, A3545 and A3549 are shown to be background systems and A3581 a foreground one.
Key words: galaxies: clusters; distances and redshifts / large-scale structure of the universe
© European Southern Observatory (ESO), 1997