| Proposal ID | 072070 |
| Title | Baryons and Dark Matter in Hubble Treasury Clusters |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0720700101 |
| DOI | https://doi.org/10.5270/esa-dxd2r3y |
| Principal Investigator, PI | Dr Megan Donahue |
| Abstract | The distribution of dark matter, baryons, and stars in a cluster gravitationalpotential is a fundamental prediction of large-scale structure formation. Wehave 524 orbits of HST imaging together with Subaru and VLT spectroscopy tomeasure the strong and weak lensing properties of 20 relaxed and 5high-magnification galaxy clusters (z = 0.18 - 0.90, Tgas > 5 keV). Observingthe last 3 relaxed clusters with good visibility lacking XMM data will permituniform joint Xray/lensing/SZ analysis for 17 of the relaxed systems to advanceour understanding of the shapes and concentrations of the mass profiles,providing precise observational benchmarks for baryonic and dark matterdistributions over a range of redshifts. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2013-08-22T22:03:38Z/2014-02-09T14:25:01Z |
| 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 | 2015-02-27T23:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "mass profiles", "vlt spectroscopy", "permit uniform", "relaxed cluster", "weak lensing properties", "fundamental prediction", "524 orbits", "dark matter", "relaxed systems", "hst imaging", "hubble treasury clusters", "cluster gravitational potential", "dark matter distributions", "XMM", "sz analysis", "scale structure formation", "HST" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Megan Donahue, 2015, 'Baryons and Dark Matter in Hubble Treasury Clusters', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-dxd2r3y |