3 papers
astro-ph2000
Spectroscopic confirmation of clusters from the ESO imaging survey
M. Ramella, A. Biviano, W. Boschin +8
We measure redshifts for 67 galaxies in the field of six cluster candidates from the ESO Imaging Survey (EIS). The cluster candidates are selected in the EIS patches C and D among…
astro-ph1999
Confirming EIS Clusters. Multi-object Spectroscopy
A. Biviano, M. Ramella, W. Boschin +7
Using EFOSC2 at the 3.6m ESO telescope, we obtained redshifts for 68 galaxies in the field of six cluster candidates from the ESO Imaging Survey (EIS). The cluster candidates were…
astro-ph1998
Cluster identification via Voronoi tessellation
M. Ramella, M. Nonino, W. Boschin +1
We propose an automated method for detecting galaxy clusters in imaging surveys based on the Voronoi tessellation technique. It appears very promising, expecially for its capabilit…