The application of galaxy clusters in constraining cosmological models iscurrently mostly limited by our uncertain knowledge of scaling relations of easyobservables and cluster mass. Most of the scaling relation studies are based onX-ray flux limited samples. Here we propose to take a new approach to studygalaxy cluster properties in a volume-limited sample. From the comparison offlux and volume-limited samples we would be able to determine the intrinsicscatter of scaling relations in an unambiguous way, providing an importantadvance in cluster cosmology studies. Apart from the cosmological application,the volume-limited survey of nearby clusters will also provide a great benchmarksample for all aspects of characterizing the properties of the cluster population.
Instrument
RGS1, EPN, RGS2, EMOS1, OM, EMOS2
Temporal Coverage
2011-04-30T18:05:12Z/2012-02-02T05:56:47Z
Version
17.56_20190403_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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.
European Space Agency, Prof Hans Boehringer, 2013, 'A new Cosmological Study Approach with a Volume Limited X-ray Cluster Sample', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-4jwybcu
