A dataset provided by the European Space Agency

Proposal ID 014817
Title Linking dark and baryonic matter in a supercluster with lensing and XMM-Newton
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0148170101

DOI https://doi.org/10.5270/esa-8g79yt9
Principal Investigator, PI Dr Meghan Gray
Abstract Combining X-ray and gravitational lensing methods is currently the most powerfulway in which to trace mass on large scales. We have recently conducted a lensingstudy of a z=0.16 supercluster, and have mapped its mass and resolved anintracluster filament. A comparison of the lensing map and galaxy distributionhas revealed variation in the cluster M/L ratios and galaxy properties, andsignificant misalignments between light and mass. We propose to match ourunique lensing dataset with the exquisite sensitivity of XMM-Newton to trace thediffuse X-ray gas and answer the question: where are the baryons? The proposedobservations provide the key to resolving the puzzling nature of this system andwill open up a new field beyond the traditional study of galaxy clusters.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2003-05-06T11:04:56Z/2003-05-07T15:38:31Z
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 2004-07-17T00:00:00Z
Last Update 2025-01-27
Keywords "lensing dataset", "gravitational lens methods", "linking dark", "xmm newton", "baryonic matter", "XMM-Newton", "galaxy properties", "diffuse xray gas", "lensing map", "galaxy distribution", "intracluster filament", "exquisite sensitivity", "XMM", "galaxy clusters"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Meghan Gray, 2004, 'Linking dark and baryonic matter in a supercluster with lensing and XMM-Newton', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-8g79yt9