Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aard.conf...57l&link_type=abstract
ASTRONOMY AND ASTROPHYSICS Recent Developments. Proceedings of the 10th Portuguese Meeting. Held 27-28 July 2000 in CENTRA, Lisb
Astronomy and Astrophysics
Astrophysics
Scientific paper
We have applied a new cluster detection algorithm to the ESO Imaging Survey galaxy catalogues, thus producing a new catalogue of cluster candidates up to redshift ~ 1. Such a catalogue enables one to perform statistically significant studies as well as detailed research on some of these systems individually and on their member galaxies. The ongoing follow-up of the candidates in multi-waveband photometry is now starting to produce its first results and shall be used to study the role of environment in the evolution of galaxy populations. Three of the cluster candidates were selected via their colors to be observed in spectroscopy mode with FORS1 at the VLT, and these data turned out to confirm the presence of a system in each field. Redshifts were determined to be z = 0.64, 0.66 and 0.71, respectively. Along the line of sight of each candidate, other systems also seem to be present and will be the aim of further research.
Lobo Carlos
Serote Roos Margarida
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