| Proposal ID | 020557 |
| Title | MEASURING ICM TEMPERATURES AT LARGE RADII IN RICH CLUSTERS OF GALAXIES |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0205570101 |
| DOI | https://doi.org/10.5270/esa-maq5b57 |
| Principal Investigator, PI | Dr SABRINA DE GRANDI |
| Abstract | The radial temperature profile of the X-ray emitting intra-cluster medium (ICM)is a key observable in determining the total mass of galaxy clusters. To datedifferent studies (ROSAT, ASCA and BeppoSAX) have found conflicting resultsregarding temperature gradients in clusters and no firm results have beenobtained from recent XMM-Newton analysis of a few pointed observations ofclusters. We propose to observe the outer cluster regions (i.e. larger than50%-60% of the virial radius), of three nearby relaxed clusters, to definitelyasses whether a temperature decline is present in these regions and, in presenceof a gradient, to determine the slope of the temperature profile, which carriesimportant information on the thermodynamical status of the ICM. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2004-02-03T16:57:36Z/2004-02-04T00:41:16Z |
| 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 | 2005-04-17T00:00:00Z |
| Keywords | "radial temperature profile", "outer cluster region", "BeppoSAX", "XMM-Newton", "icm temperatures", "nearby relaxed clusters", "xmm newton analysis", "key observable", "galaxy clusters", "thermodynamical status", "rich cluster", "definitely asses", "ROSAT", "temperature decline", "XMM", "total mass", "temperature profile", "regarding temperature gradients", "virial radius" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr SABRINA DE GRANDI, 2005, 'MEASURING ICM TEMPERATURES AT LARGE RADII IN RICH CLUSTERS OF GALAXIES', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-maq5b57 |