Evolution of clusters of galaxies at high redshift - implications for cosmological models
4РП — Обучение и мобилност на изследователи
- Период
- 1998-01-01 → 2000-12-31
- Финансиране от ЕС
- —
- Участници
- 2
- Схема
- RGI
Линиите свързват координатора с партньорите. За проекти отпреди 2014 г. CORDIS не винаги дава точни координати. Тези точки са на ниво град или държава.
Накратко на български
Групи от далечни галактики се анализират чрез оптични и рентгенови данни, за да се определят тяхната маса и яркост. Това помага за изясняване на плътността на материята във Вселената и проверка на космологичните модели.
Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.
Цел на проекта
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
Оригинален текст от CORDIS (на английски).
Участници
Връзки
Данни: CORDIS, © Европейски съюз