Chemical Enrichment and Energetics of the ICM with Redshift

Details Chemical Enrichment and Energetics of the ICM with Redshift Chemical Enrichment and Energetics of the ICM with Redshift

2001-09-26

arxiv.org/abs/astro-ph/0109471v1

Astronomy and Astrophysics

Astrophysics

8 pages, 3 figures, to be published in "Chemical Enrichment of the ICM and the IGM" (Vulcano, Italy), ASP Conference Series

Scientific paper

In this paper we show preliminary results concerning the chemical and energetic enrichment of the ICM by means of supernova-driven wind models in elliptical galaxies. These models are obtained by taking into account new prescriptions about supernova remnant evolution in the interstellar medium. We find that models, which can reproduce the Fe abundance and the [$\alpha$/Fe] ratios observed in the ICM, predict that the SN energy input can provide about 0.3 keV per ICM particle. We have obtained this result by assuming that each SN explosion inject on the average into the ISM no more than 20% of its initial blast wave energy. The predicted energy per particle is not enough to break the cluster self-similarity but is more than predicted in previous models.

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