| 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 |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2012-05-03T05:23:59Z/2012-05-31T18:20:35Z |
| 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 | 2013-06-14T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "dark energy equation", "dovich sz effect", "sz observables", "calibrate xray", "weak lensing program", "spt survey", "spt cluster mass", "massive cluster", "complete xray", "560 deg2 surveyed", "weak lensing", "lensing mass", "sz significance", "2500 deg $^", "cluster requiring", "intermediate redshift", "sunyaev zel" |
| 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', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-kkswedo |