Reinaldo de Carvalho
Obs. Nacional CNPq (Rio de Janeiro, Brésil)
Salle des séminaires Évry Schatzman, Institut d'Astrophysique de Paris
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| « Clusters of Galaxies: How to Detect them, Prospects for Estimating the Mass Function » |
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Reinaldo de Carvalho |
| We have recently completed a new cluster survey utilizing the Digitized Second Palomar Observatory Sky Survey (DPOSS). This survey, the Northern Sky Optical Cluster Survey, covers ~10,000 square degrees, and contains nearly 20,000 candidate galaxy clusters out to z~0.3. The catalog has extremely well characterized completeness functions in both redshift and richness, allowing us to select physically distinct subsamples for follow-up studies. We are undertaking an extensive spectroscopic campaign to obtain dynamical masses for a volume and mass limited sample of clusters, to construct the cluster mass function at z=0.1-0.2. In this talk I will cover most of the issues related to the building up of this new cluster catalog and discuss the future prospects. |
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vendredi 19 septembre 2003 - 11:00 Salle des séminaires Évry Schatzman, Institut d'Astrophysique de Paris |
| Page web du séminaire / Seminar's webpage |