We propose to compare X-ray luminosities and temperatures of a sample of confirmed optically-selected z virgul 0.8 clusters to well-determined velocitydispersions and weak-lensing maps. The use of non-X-ray selected clustersenables us to search for large deviations in the X-ray properties relativeto other mass tracers. Our extensive ground-based observational program willprovide velocity measurements for more than 50 cluster members per cluster andweak lensing maps augmented with photometric redshift information for ten of themost optically luminous clusters at z virgul 0.8 in the Las Campanas DistantCluster Survey. A study such as this is an essential complement to the largeinvestment of time in X-ray selected cluster studies.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2003-07-06T03:42:30Z/2003-07-06T13:07:46Z
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 Dennis Zaritsky, 2004, 'Characterising Galaxy Clusters at z virgul 0.8', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-s7c3ofj
