We have compiled the largest statistically complete sample of galaxy clusterswith weak lensing mass estimates. 32 of the 36 clusters have already beenobserved with XMM-Newton and/or Chandra. With 47ks of XMM-Newton observations,good quality X-ray data can be obtained for the remaining 4, creating a completeX-ray/lensing dataset. For the first time, X-ray and weak lensing mass estimateswill be cross-calibrated in a volume limited sample. This will allow: 1) themeasurement of systematic effects in cluster mass estimates and their effect onderived cosmological constraints; 2) improved calibration of the X-rayobservable - mass scaling relations; and 3) accurate measurements of clusterbaryon fractions.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2006-06-27T12:35:31Z/2007-04-14T00:10:00Z
Version
PPS_NOT_AVAILABLE
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, Dr Ben Maughan, 2008, 'An X-ray - lensing calibration of cluster mass estimates', PPS_NOT_AVAILABLE, European Space Agency, https://doi.org/10.5270/esa-eizdgks
