Objectif The first stars, which were formed in the Universe were sources of ionising photons, but also of atomic nuclei more massive than those produced during the big bang. Understanding the nature of these stars and their role in the build up of the chemical elements (nucleosynthesis) is of crucial importance also to understand the formation of galaxies at redshift z~5 or larger. Considering that the Main Sequence lifetime of a star of 0.8 solar masses is of the order of the age of the Universe, the first stars o f this low mass are still observable today and they provide the fossil record of the chemical composition of the Young Universe.In this field the European research has taken the lead thanks to the excellent capacities of the ESO-VLT 8.2m telescopes. The most active European centre in the field is the Observatoire de Paris-Meudon, where much of the scientific expertise and computational capabilities are available. However the complexity of the analysis required and the large amount of data demand an effort, which is on a European scale. We therefore propose to establish a European excellence team in Paris-Meudon devoted to the study of the first stars and their chemical composition.This will draw from the expertise and know-how present in Paris and will attract as many as four top class researchers from other European countries, thus becoming the European focal point for this research. The presence of such a centre will positively counter-act on the on-going brain-drain suffered by Europe and will give a fundamental contribution at placing European research on the leading edge. Champ scientifique sciences naturellessciences chimiqueschimie inorganiquemétal alcalinsciences naturellessciences physiquesastronomiecosmologie physiquebig bangsciences naturellessciences physiquesphysique théoriquephysique des particulesphotons Programme(s) FP6-MOBILITY - Human resources and Mobility in the specific programme for research, technological development and demonstration "Structuring the European Research Area" under the Sixth Framework Programme 2002-2006 Thème(s) MOBILITY-3.1 - Marie Curie Excellence Grants (EXT) Appel à propositions FP6-2002-MOBILITY-8 Voir d’autres projets de cet appel Régime de financement EXT - Marie Curie actions-Grants for Excellent Teams Coordinateur OBSERVATOIRE DE PARIS Adresse 61, avenue de l'observatoire Paris France Voir sur la carte Liens Site web Opens in new window Contribution de l’UE Aucune donnée
