Protogalactic explosions and intracluster chemical enrichment |
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| Authors: | A. Di Fazio F. Vagnetti J. R. Wilson |
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| Affiliation: | (1) Osservatorio Astronomico di Roma, Italy;(2) Laboratorio di Astrofisica Spaziale, Frascati, Italy;(3) Laboratorio di Astrofisica Spaziale, Frascati, Italy;(4) Lawrence Livermore Laboratory, University of California, Livermore, U.S.A. |
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| Abstract: | Using a hydrodynamic model of protogalactic evolution, we explain the amount of iron in rich clusters, deduced from X-ray observations. In fact, our calculations show that a strong shock wave originates in the first violent collapse phase and leaves the protogalaxy, carrying out a substantial fraction of its mass, with roughly solar metallicity and high temperature (107–108 K). We also show that hot material ejected from proto-cD galaxies can probably explain the observed X-ray emission in clusters. |
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