Galaxy distributions at very low and very high redshift

In this seminar I will present the newest results in the analysis of
galaxy distribution in the Local Universe, using SDSS and LEDA
redshift samples. In our team we extensively use statistical tools
developped to analyse all kinds of point distributions without
assumption of homogeneity in the sample, this allows us to look for
the scale of homogeneity in the large scale structures of the
universe.  I will end the seminar showing you the new images of the
MUSE deep field , we have just simulated. MUSE is a second generation
instrument for the VLT. It is an integral field spectrograph and could
be built for 2008. Presently it is in its pre-phase A and we are
making predictions of its observations of primeval galaxies up to z=7
in order to defend its science case.  By the way, I will explain how
we are using the Supernovae LS to constrain the cosmological
simulations of the structure formation.

Helene Courtois -
Maitre de Conferences-
Cosmology team - CRAL-Observatoire de Lyon