Spectroscopic confirmation of clusters from the ESO imaging survey

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 those with estimated mean redshifts 0.5 95% confidence level). Two of these systems have mean redshift in agreement with the redshift estimate given by the matched filter algorithm (\u394z = \ub1 0.1). The other two systems have significantly lower redshifts. We discuss the implications of our results in the context of our ongoing research projects aimed at defining high-redshift optically-selected cluster samples. Based on observations collected at the European Southern Observatory (La Silla, Chile), Proposal ID: 62.O-060