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Evolution of X-Ray Clusters of Galaxies with Active Protogalaxies

Published online by Cambridge University Press:  25 May 2016

H. Saga ,
S. Yachi  and
A. Habe
H. Saga
Affiliation:
Graduate School of Science, Hokkaido University, Sapporo, JAPAN
S. Yachi
Affiliation:
Graduate School of Science, Hokkaido University, Sapporo, JAPAN
A. Habe
Affiliation:
Graduate School of Science, Hokkaido University, Sapporo, JAPAN

Extract

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We consider heating due to proto galaxies in the formation process of clusters of galaxies, since much metal is observed in the intracluster gas which must be ejected from protogalaxies vir strong galactic winds and the metal abundance in the intracluster gas correlates with the fraction of early type galaxies in clusters (Arnaud 1993). We also consider radiative cooling. From the difference between the observed LX - TX relation of X-ray cluster (Hatsukade 1989), LX ∝ T2.7-3.3X, and the prediction from the self-similar model (Kaiser 1986), LX ∝ T2X, it is pointed out that physical processes which are not taken into account in the self-similar model, e.g., effect of radiative cooling, and/or effect of proto galaxy heating, play a important role in the formation process (Evrard and Henry 1991, Kaiser 1991).

Type
Session 1: Plasma and Fresh Nucleosynthesis Phenomena
Information
Symposium - International Astronomical Union , Volume 188: The Hot Universe , 1998 , pp. 321 - 322
Copyright
Copyright © Kluwer 1998 

References

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