| Proposal ID | 084468 |
| Title | Enhancing DES cosmology with a complete sample of RedMaPPer selected clusters |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0844680101 |
| DOI | https://doi.org/10.57780/esa-j9qppqm |
| Principal Investigator, PI | Dr Paul Giles |
| Abstract | The Dark Energy Survey (DES) is currently the pre-eminent optical/near-IR surveyfor cosmology. DES uses four probes to study the physical nature of dark energy,including clusters of galaxies. To unlock the full potential of DES clusters, werequire precise information of the galaxy-richness to halo-mass scalingrelation, i.e. its slope, normalisation, and scatter. Of these, the least wellknown is the scatter. Therefore, one of the highest priorities for DES is toimprove measurements of the scatter (and its evolution). For this, X-rayobservations of a statistically complete sample are essential (archival,including serendipitous, observations are insufficient). We propose XMMobservations (totaling 283ks) of 14 DES clusters, to complete a sample of 40 of the richest clusters in DES |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2019-12-27T05:31:19Z/2019-12-27T10:59:39Z |
| 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 | 2021-01-14T23:00:00Z |
| Last Update | 2026-06-19 |
| Keywords | "enhancing des cosmology", "totaling 283", "pre eminent optical", "galaxy richness", "XMM", "des clusters", "statistically complete sample", "complete sample", "ir survey", "dark energy", "require precise information", "richest cluster" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Paul Giles, 2021, 'Enhancing DES cosmology with a complete sample of RedMaPPer selected clusters', 21.51_20241115_1113, European Space Agency, https://doi.org/10.57780/esa-j9qppqm |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |