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XMM-Newton observations of the cluster of galaxies Abell496 -Measurements of the elemental abundances in the intracluster medium-

T. Tamura·J. A. M. Bleeker·J. S. Kaastra·C. Ferrigno·S. Molendi
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Abstract

The results from XMM-Newton observations of the relaxed cluster of galaxies Abell~496 are presented. The spatially-resolved X-ray spectra taken by the European Photon Imaging Cameras show a temperature drop and a Fe abundance increase in the intra-cluster medium (ICM) towards the cD galaxy at the cluster center. The abundances of Si and S also show a central enhancement. High resolution soft X-ray spectra obtained with the Reflection Grating Spectrometers provides a strong constraint on the temperature structure in the central cool plasma. Furthermore, the O abundance at the cluster core is accurately measured based on the OVIII Ly alpha line detected with the RGS. Contrary to the Si, S, and Fe abundances, the O abundance is radially constant over the cluster.

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T. Tamura, J. A. M. Bleeker, J. S. Kaastra, C. Ferrigno, S. Molendi. 2001-11-13. XMM-Newton observations of the cluster of galaxies Abell496 -Measurements of the elemental abundances in the intracluster medium-. https://doi.org/10.1051/0004-6361%3A20011317

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