Confirming EIS Clusters. Optical and Infrared Imaging
Abstract
Clusters of galaxies are important targets in observationally cosmology, as they can be used both to study the evolution of the galaxies themselves and to constrain cosmological parameters. Here we report on the first results of a major effort to build up a sample of distant galaxy clusters to form the basis for further studies within those fields. We search for simultaneous overdensities in color and space to obtain supporting evidence for the reality of the clusters. We find a confirmation rate for EIS clusters of 66%, suggesting that a total of about 80 clusters with z>=0.6 are within reach using the EIS cluster candidates.
Cite
@article{arxiv.astro-ph/9910447,
title = {Confirming EIS Clusters. Optical and Infrared Imaging},
author = {L. F. Olsen and H. E. Jorgensen and M. Scodeggio and L. da Costa and R. Rengelink and M. Nonino and A. Biviano and M. Ramella and W. Boschin},
journal= {arXiv preprint arXiv:astro-ph/9910447},
year = {2007}
}
Comments
4 pages, 2 figures, to appear in the proceedings of the IGRAP International Conference 1999 on 'Clustering at high Redshift'