Galaxy clusters are important tools for probing the cosmic large-scale structure evolution and for performing precision tests of cosmological models. The limiting factor for the application of clusters in such cosmological studies is currently the uncertainty in the relation between the observed X-ray luminosity (or temperature) and the cluster mass needed for the theoretical modeling. In view of the large efforts currently undertaken in X-ray cluster surveys and evolutionary studies (also using XMM extensively) it is crucial to pin down the cluster scaling relations at low z in a first step. Therefore we propose a comprehensive, detailed study of a representative cluster sample as an open, Legacy-type project to provide the community with the necessary data.
No observations found associated with the current proposal
EPN, RGS1, OM, RGS2, EMOS1, EMOS2
The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earth's atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.