6 papers
Clustering of Galaxies and Groups in the NOG Sample
G. Giuricin, S. Samurovic, M. Girardi +2
We use the two-point correlation function in redshift space, , to study the clustering of the galaxies and groups of the Nearby Optical Galaxy (NOG) Sample, which is a nearly…
Dynamical Evolution of Clusters
M. Girardi, M. Mezzetti, A. Devetak
We consider a sample of about 50 distant galaxy clusters at z>0.15 (<z> about 0.3), each cluster having at least 10 galaxies with available redshift in the literature. We select me…
Weak lensing mass reconstruction of MS1008.1-1224
M. Lombardi, P. Rosati, M. Nonino +3
We present an in-depth weak lensing analysis of the cluster MS1008 based on deep multicolor imaging obtained during the Science Verification of FORS1 at the VLT. The image quality…
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…
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…
Optical Substructures in 48 Galaxy Clusters
M. Girardi, E. Escalera, D. Fadda +3
We analyze the presence of substructures in a set of 48 galaxy clusters, by using galaxy positions and redshifts. We use a multi-scale analysis which couples kinematical estimators…