A dataset provided by the European Space Agency

Proposal ID 009306
Title The Origin and Distribution of Heavy Elements in the cD Groups MKW4 and AWM4
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0093060301
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DOI https://doi.org/10.5270/esa-bgwlrcd
Principal Investigator, PI Dr Jan M. Vrtilek
Abstract Most galaxies in the present-day Universe are in groups and poor clusters. Groups are thought to be the building blocks from which clusters formed, and they accordingly occupy an important niche in the continuum between isolated galaxies and rich clusters. We here propose observations of the cD groups MKW 4 and AWM 4; our principal purpose is the accurate determination of the abundances of heavy elements as a function of position in the group. These observations exploit the high X-ray brightnesses of the groups and their relative sparseness to understand the overall metallicity of the intragroup gas, to test whether any abundance variations are associated with individual galaxies, and to trace the origin of the enrichment to type Ia or II SNs.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2001-12-21T17:40:46Z/2003-01-26T02:31:07Z
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 2004-02-21T00:00:00Z
Keywords "overall metallicity", "building bloc", "ii sns", "isolated galaxy", "individual galaxy", "abundance variations", "relative sparseness", "intragroup gas", "xray brightnesses", "type ia", "cluster formed", "rich clusters", "heavy elements"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Jan M. Vrtilek, 2004, 'The Origin and Distribution of Heavy Elements in the cD Groups MKW4 and AWM4', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-bgwlrcd