A dataset provided by the European Space Agency

Proposal ID 014704
Title Measuring ICM Temperatures at Large Radii in Rich Clusters of Galaxies
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0147040101
DOI https://doi.org/10.5270/esa-t5uxsg1
Principal Investigator, PI Dr Sabrina De Grandi
Abstract The radial temperature profile of the X-ray emitting intra-clustermedium (ICM) is key observable in determining the total gravitationalmass of clusters of galaxies. To date different studies (ROSAT, ASCAand BeppoSAX) have found conflicting results regarding temperaturegradients in clusters. We propose to observe the outer clusterregions (i.e., > 50\%-60\% of the virial radius), of three nearbyrelaxed clusters, to definitely assess whether a temperature decline ispresent in these regions and, in presence of a gradient, to determinethe slope of the temperature profile, which carries importantinformation on the thermodynamical status of the ICM.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2003-08-10T06:12:26Z/2003-08-10T14:56:14Z
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 2004-09-01T00:00:00Z
Keywords "temperature decline", "radial temperature profile", "total gravitational mass", "key observable", "outer cluster region", "thermodynamical status", "rich cluster", "temperature profile", "BeppoSAX", "regarding temperature gradients", "virial radius", "nearby relaxed clusters", ".", " $>", "icm temperatures", "ROSAT"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Sabrina De Grandi, 2004, 'Measuring ICM Temperatures at Large Radii in Rich Clusters of Galaxies', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-t5uxsg1