| Proposal ID | 055602 |
| Title | The case of high metallicity in low-temperature nearby galaxy clusters |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0556020101 |
| DOI | https://doi.org/10.5270/esa-wg8u3t1 |
| Principal Investigator, PI | Dr Stefano Ettori |
| Abstract | Recent work find evidence of an increase of the Iron abundance in clusters withtemperatures below 5 keV, up to a value about 3 times larger than that typicalof very hot clusters. This behaviour is likely related to fundamental processesof metal production and release in low--temperature objects. Fromspatially-unresolved ASCA metallicity measurements, we select 9 clusters with$Z>0.6 Z_odot$. For none of these, apart from one, is possibile to recover themetal abundance profile with the available data. We aim to make proper use ofXMM-Newton to resolve spatially the metal distribution in the central regions ofthe 3 brightest objects never resolved spatially before. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2008-07-29T03:55:36Z/2008-07-29T18:45:02Z |
| 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 | 2009-08-23T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "XMM", "fundamental processes", "XMM-Newton", "brightest objects", "metal abundance profile", "hot clusters", "central region", "xmm newton", "iron abundance", "metal production", "low temperature objects", "z_odot $.", "metal distribution" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Stefano Ettori, 2009, 'The case of high metallicity in low-temperature nearby galaxy clusters', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-wg8u3t1 |