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Enrichment of Heavy Elements in Clusters of Galaxies

Published online by Cambridge University Press:  19 July 2016

Yuhri Ishimaru
Yuhri Ishimaru*
Affiliation:
National Astronomical Observatory, 2-21-1, Mitaka, Osawa, Tokyo 181, Japan. email: ishimaru@th.nao.ac.jp

Abstract

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We study the roles of type Ia (SNIa) and type II supernovae (SNII) in enrichment of the intra-cluster medium (ICM). Considering stellar [Fe/H] of ellipticals, iron mass in ICM to luminosity ratios, and [α/Fe] of ICM, we show that ~ 53% of iron in ICM comes from SNIa. While clusters keep all of ejecta from ellipticals, we obtain the observational evidence for that groups of galaxies lose parts of the gas by supernovae-driven winds. This ‘group wind’ scenario is confirmed by an 1D hydrodynamical model.

Type
Conference Papers in order of Presentation
Information
Symposium - International Astronomical Union , Volume 187: Cosmic Chemical Evolution , 2002 , pp. 117 - 121
Copyright
Copyright © 2002 

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