Proposal ID | 074120 |
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=0741200101 |
DOI | https://doi.org/10.5270/esa-054q0l5 |
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. Of 47 AO10 targets 26 flared ones have beenresheduled for AO12 of which 6 are again severely affected by flares. Werepropose these last 6 targets to complete the volume-limited sample for a totalexecution time of 60 ks since it is crucial to have good data for the full sample. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2014-04-01T05:12:59Z/2014-06-17T15:29:42Z |
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 | 2015-07-03T22:00:00Z |
Keywords | "uncertain knowledge", "total execution time", "cluster property statistics", "scaling relations", "galaxy cluster", "constraining cosmological models", "ao10 targets", "scaling relation", "volume limited sample", "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-054q0l5 |