A dataset provided by the European Space Agency

Proposal ID 072070
Title Baryons and Dark Matter in Hubble Treasury Clusters
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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
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
Keywords "weak lensing properties", "relaxed cluster", "fundamental prediction", "mass profiles", "XMM", "dark matter distributions", "cluster gravitational potential", "relaxed systems", "dark matter", "524 orbits", "scale structure formation", "HST", "vlt spectroscopy", "permit uniform", "hst imaging", "hubble treasury clusters", "sz analysis"
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