We propose a systematic high precision investigation of the cluster massobservable scaling relations, employing XMM data and our Subaru weak lensingdata. The primary goal is to find out the best cluster mass proxy andinvestigate the behaviors of its scatter. Our preliminary results indicate thatgas mass has lower scatter with total mass, compared to the product of gas massand cluster temperature, Y_X. If those are confirmed, this will change thestrategy for carrying out the X-ray cluster cosmology. Achieving a good controlover the systematics have major implications for cluster cosmologists strivingto measure the dark energy equation of state parameter, and should add a sharpmulti-wavelength focus to investigations of the cluster physics. We require to observe 10 of 27 clusters (176ksec).
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2009-06-17T06:51:27Z/2010-04-25T21:24:37Z
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, Dr Yu-Ying Zhang, 2011, 'LoCuSS: A Joint XMM-Newton Subaru Study of Galaxy Cluster Scaling Relations', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-i0qeu2l
