Mathematics – Logic
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aspc..289..371r&link_type=abstract
The Proceedings of the IAU 8th Asian-Pacific Regional Meeting, Volume I, held 2-5 July 2002 at National Center of Sciences, Hito
Mathematics
Logic
Scientific paper
Clusters of galaxies and large scale structures contain a significant amount of cosmic rays (as well as magnetic fields) embedded in the hot gas detectable in X-rays; the energy output from growing black holes at the centers of active galactic nuclei, supernovae and gamma ray bursts leads naturally to a scenario where the intracluster medium in analogy to the interstellar medium is filled with energetic particles and permeated by magnetic fields. Those cosmic rays may be energetically as important as the hot gas in clusters; the two components could be in pressure equipartition. Here, we present an exploration of large scale structure formation through numerical simulations, where we have included dynamical effects of cosmic rays, in order to study how much structure formation is influenced by them. Cosmic rays are assumed to be injected from individual sources which form in the course of large scale structure formation. Their advection along with compression has been followed. Preliminary results are presented, and the cosmological implications are discussed.
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