| Proposal ID | 067385 |
| Title | XMM-Subaru:Complete High Precision Study of Galaxy Clusters for Modern Cosmology |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0673850201 |
| DOI | https://doi.org/10.5270/esa-ek9pzmx |
| Principal Investigator, PI | Dr Yu-Ying Zhang |
| Abstract | Our XMM-Subaru study of 12 clusters confirms that Mgas is a low scatter massproxy, but the slopes of the mass-observable relations deviate from self-similarpredictions, dependent on cluster dynamics. We propose to calibrate biases inthe mass proxies based on 3 independent probes (Xray/lensing/velocitydispersion) for a volume-limited sample of 52 luminous clusters, and toinvestigate the origin of the biases by adding a sample of 15 lower-Lx clusters.We will deliver definitive constraints on systematics for upcoming clustercosmology surveys. The dataset will be a major asset for programs aiming tomeasure dark energy as well as programs adding a multi-wavelength focus tostudies of cluster physics. High-quality X-ray data exist for 47 clusters, we request 650ks for the remaining 20. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2011-12-10T18:59:15Z/2012-04-17T20:05:05Z |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2013-05-09T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "multi wavelength focus", "mass proxies", "lower lx clusters", "XMM", "cluster cosmology surveys", "major asset", "galaxy cluster", "modern cosmology", "deliver definitive constraints", "velocity dispersion", "volume limited sample", "calibrate biases", "cluster physics", "cluster confirms", "dark energy", "cluster dynamics", "xmm subaru", "probes xray", "programs aiming", "luminous clusters" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Yu-Ying Zhang, 2013, 'XMM-Subaru:Complete High Precision Study of Galaxy Clusters for Modern Cosmology', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ek9pzmx |