Evolution of clusters of galaxies at high redshift - implications for cosmological models

Informations projet

N° de convention de subvention: FMBI972471

Projet clôturé

Date de début 1 Janvier 1998

Date de fin 31 Decembre 2000

Financé au titre de

• Specific research and technological development programme in the field of the training and mobility of researchers, 1994-1998

Coût total € 0,00

Contribution de l’UE Aucune donnée

Coordonné par

Université de Toulouse III (Université Paul Sabatier)
France

Objectif

Research objectives and content
The evolution of clusters of galaxies can place important constraints on current cosmological models. Recently, a number of galaxy clusters have been discovered at high redshift thanks to the rapid development of observational techniques. A systematic search and analysis of high-redshift clusters forms the subject of the proposed project. Wide-field images in several colours will be made and a catalogue of cluster candidates will be produced from these and archive optical and X-ray data. The cluster candidates will subsequently be observed at higher resolution using HST and the XMM satellite. Cluster masses will be determined using weak lensing statistics and X-ray temperature. Mass and luminosity functions will be determined. Also, the properties of the member galaxies will be analysed. The expected number density of high-redshifit dusters as seen on the sky will be determined theoretically in the framework of hierarchical clustering and by investigating numerical simulations of structure formation in conjunction with models of galaxy evolution. By comparing to the observational mass and luminosity functions the matter density in the Universe will be determined.
Training content (objective, benefit and expected impact)
The project involves training concerning a large variety of astrophysical techniques: - observational techniques on large optical telescopes - analysis of optical and X-ray data - numerical cosmological simulations (Durham) - galaxy evolution models - development of computer code to simulate observations at different wavelengths using the above models
Links with industry I industrial relevance (22)
not relevant

Champ scientifique

• natural sciences › physical sciences › astronomy › observational astronomy › optical astronomy
• engineering and technology › materials engineering › colors
• engineering and technology › mechanical engineering › vehicle engineering › aerospace engineering › satellite technology
• natural sciences › physical sciences › astronomy › physical cosmology › galaxy evolution

Programme(s)

• FP4-TMR - Specific research and technological development programme in the field of the training and mobility of researchers, 1994-1998

Thème(s)

• 0301 - Post-graduate research training grants
• TP08 - Astronomy, Astrophysics, Cosmology

Appel à propositions

Data not available

Régime de financement

RGI - Research grants (individual fellowships)

Coordinateur

Université de Toulouse III (Université Paul Sabatier)

• Contribution de l’UE: Aucune donnée
• Adresse: 14 avenue Edouard Belin ; 31400 Toulouse ; France
• Coût total: Aucune donnée

Participants (1)

Not available

Allemagne

• Contribution de l’UE: Aucune donnée
• Coût total: Aucune donnée