| Proposal ID | 069301 |
| 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=0693010101 |
| DOI | https://doi.org/10.5270/esa-g8ruk9x |
| Principal Investigator, PI | Dr Yu-Ying Zhang |
| Abstract | We request 382 ks data for 12 clusters to complete our survey of avolume-limited sample of 55 clusters. We investigated the existing data, whichhints a mass dependent bias in the X-ray to weak lensing mass ratios fordisturbed ones. X-ray mass proxies, e.g., Yx, show low scatter, but the bestfits, particularly the slopes, of the mass-observable relations may be biaseddue to this mass dependence. Our program will quantify any mass/radial dependentbias based on three independent probes (X-ray/lensing/velocity dispersion) forsuch a volume-limited sample, and deliver definitive constraints on systematicsfor upcoming cluster cosmology surveys. The dataset will be a major asset forprograms aiming to measure dark energy and programs adding a multi-wavelength focus to studies of cluster physics. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2012-05-27T22:27:26Z/2013-01-01T22:04:46Z |
| Version | 21.51_20241115_1113 |
| 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 | 2014-02-01T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "cluster physics", "dark energy", "xray mass proxies", "XMM", "382 data", "volume limited sample", ".", " yx", "mass observable relations", "existing data", "major asset", "deliver definitive constraints", "velocity dispersion", "xmm subaru", "probes xray", "modern cosmology", "low scatter", "mass dependent bias", "multi wavelength focus", "cluster cosmology surveys", "galaxy cluster", "radial dependent bias", "programs aiming" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Yu-Ying Zhang, 2014, 'XMM-Subaru:Complete High Precision Study of Galaxy Clusters for Modern Cosmology', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-g8ruk9x |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |