| Proposal ID | 069290 |
| Title | Cosmology from X-ray and Weak Lensing Observations of SZ Discovered Clusters |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0692900101 |
| DOI | https://doi.org/10.5270/esa-kkswedo |
| Principal Investigator, PI | Dr Bradford Benson |
| Abstract | We propose to complete X-ray observations of a sample of 20 intermediateredshift (0.3 < z < 0.5) massive clusters of galaxies discovered via theSunyaev-Zeldovich (SZ) effect by the South Pole Telescope (SPT). These clustersare uniformly selected by their SZ significance from 560 deg2 surveyed by theSPT, and are part of a ground-based weak lensing program using Magellan. Thecombined observations will calibrate X-ray and SZ observables to the lensingmass estimates with an overall 5% uncertainty for the ensemble of clusters. Thisresult will improve SPT cluster mass estimates, which when applied to the 2500deg$^2$ SPT survey will allow a 5% constraint on the dark energy equation ofstate. To complete this sample, we need observations of 6 clusters requiring a total of 93 ksec. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2012-05-03T05:23:59Z/2012-05-31T18:20:35Z |
| 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 | 2013-06-14T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "sunyaev zel", "spt survey", "560 deg2 surveyed", "massive cluster", "weak lensing program", "intermediate redshift", "complete xray", "dark energy equation", "weak lensing", "lensing mass", "cluster requiring", "2500 deg $^", "dovich sz effect", "sz significance", "calibrate xray", "sz observables", "spt cluster mass" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Bradford Benson, 2013, 'Cosmology from X-ray and Weak Lensing Observations of SZ Discovered Clusters', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-kkswedo |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |