Multi-object spectroscopy of low redshift EIS clusters. I

Abstract

We report the results of the first multi-object spectroscopic observations at the Danish 1.54m telescope at La Silla, Chile. Observations of five cluster candidates from the ESO Imaging Survey Cluster Candidate Catalog are described. From these observations we confirm the reality of the five clusters with measured redshifts of 0.11<=z<=0.35. We estimate velocity dispersions in the range 294-621km/s indicating rather poor clusters. This, and the measured cluster redshifts are consistent with the results of the matched filter procedure applied to produce the Cluster Candidate Catalog.

7pages, accepted by Astronomy and Astrophysics

References in corpus (3)

• The 2dF Galaxy Redshift Survey: Spectra and redshifts
• Optically-selected clusters at 0.8 < z < 1.3 in the EIS Cluster Survey
• Multi-object spectroscopy of low redshift EIS clusters. I

Cited by in corpus (8)

• 3D-Matched-Filter Galaxy Cluster Finder I: Selection Functions and CFHTLS Deep Clusters
• BLOX: The Bonn Lensing, Optical, and X-ray selected galaxy clusters -- I. Cluster catalog construction
• Empirical Photometric Redshifts of Luminous Red Galaxies and Clusters in SDSS
• Multi-object spectroscopy of low redshift EIS clusters. III. Properties of optically selected clusters
• Multi-object spectroscopy of low redshift EIS clusters. I
• Multi-object spectroscopy of low redshift EIS clusters. II
• Galaxy clusters in the CFHTLS. First matched filter candidate catalogue of the Deep fields
• Multi-object spectroscopy of low-redshift EIS clusters IV. Reliability of matched-filter results at z~0.3-0.4