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Metal Enrichment Processes in the ICM – Starbursts and Galactic Winds

Published online by Cambridge University Press:  01 August 2006

W. Kapferer ,
T. Kronberger ,
W. Domainko ,
S. Schindler ,
E. van Kampen ,
S. Kimeswenger ,
M. Ruffert ,
M. Mair  and
D. Breitschwerdt
W. Kapferer
Affiliation:
Institut für Astro – und Teilchenphysik, Innsbruck, Austria
T. Kronberger
Affiliation:
Institut für Astro – und Teilchenphysik, Innsbruck, Austria
W. Domainko
Affiliation:
Institut für Astro – und Teilchenphysik, Innsbruck, Austria
S. Schindler
Affiliation:
Institut für Astro – und Teilchenphysik, Innsbruck, Austria
E. van Kampen
Affiliation:
Institut für Astro – und Teilchenphysik, Innsbruck, Austria
S. Kimeswenger
Affiliation:
Institut für Astro – und Teilchenphysik, Innsbruck, Austria
M. Ruffert
Affiliation:
Department for Mathematics and Statistics, University of Edinburgh, UK
M. Mair
Affiliation:
Institut für Astro – und Teilchenphysik, Innsbruck, Austria
D. Breitschwerdt
Affiliation:
Institut für Astronomie, Universität Wien, Austria
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Abstract

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We present an investigation of the metal enrichment of the intra-cluster medium (ICM) by galactic winds and merger-driven starbursts. We use combined N-body/hydrodynamic simulations with a semi-numerical galaxy formation model. The inhomogeneities in the metal distribution caused by these processes are an ideal tool to reveal the dynamical state of a galaxy cluster. We show that X-ray weighted metal maps distinguish between pre- or post-merger galaxy clusters by comparing the metallicity distribution with the galaxy-density distribution: pre-mergers have a metallicity gap between the subclusters, post-mergers a high metallicity between subclusters.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S235: Galaxy Evolution Across the Hubble Time , August 2006 , pp. 212
Copyright
Copyright © International Astronomical Union 2007

References

Kapferer, W. 2006, A&A, 447, 827.Google Scholar