| Proposal ID | 072025 |
| Title | A new Cosmological Study Approach with a Volume Limited X-ray Cluster Sample |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0720250101 |
| DOI | https://doi.org/10.5270/esa-f2y4i92 |
| Principal Investigator, PI | Prof Hans Boehringer |
| Abstract | The application of galaxy clusters in constraining cosmological models iscurrently mostly limited by our uncertain knowledge of scaling relations ofobservables and cluster mass. Most scaling relation studies are based on X-rayflux limited samples which are biased. In AO10 we proposed to take a newapproach with a study of an unbiased volume-limited sample. From this approachand a comparison of both types of samples we will get many new insights into thecluster property statistics. All requested targets have been observed in AO10,but ~ 37 per cent of the observing time has been severly affected by flares.Since we require good data for the full sample, we are requesting there-observation of 26 clusters for a total of 302 ks not to miss our original goal. |
| Publications |
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| Instrument | RGS1, EPN, RGS2, EMOS1, OM, EMOS2 |
| Temporal Coverage | 2013-05-02T12:40:33Z/2014-02-20T18:07:03Z |
| 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 | 2015-03-10T23:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "cluster property statistics", "severly affected", "uncertain knowledge", "scaling relations", "scaling relation", "constraining cosmological models", "galaxy cluster", "requested targets", "cluster mass" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Hans Boehringer, 2015, 'A new Cosmological Study Approach with a Volume Limited X-ray Cluster Sample', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-f2y4i92 |