J. de Plaa
- Soft X-ray excess in the cluster of galaxies Sérsic 159-03
- Book/source title
- IAU Colloq. 195: Outskirts of Galaxy Clusters: Intense Life in the Suburbs
- Pages (from-to)
- Document type
- Conference contribution
- Faculty of Science (FNWI)
- Anton Pannekoek Institute for Astronomy (API)
We present the results from a new 120 ks XMM-Newton observation of Sérsic 159-03. A previous XMM-Newton observation of this cluster shows the presence of a soft X-ray excess in the outer parts of the cluster, which is possibly connected to the interaction between the cluster and the gas from the surrounding filaments. We exploit the long exposure time to constrain the excess emission and discuss the relation to the warm-hot intergalactic medium. Furthermore, we show a high-resolution RGS spectrum of the core of the cluster and radial profiles from EPIC, which allow us to constrain the internal temperature structure and elemental abundances.
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