Advances in Theoretical & Computational Physics(ATCP)

Argelander Institute for Astronomy, University of Bonn, Auf dem Huegel 71, 53121 Bonn, Germany

Publications

• Research Article   
  Relativistic Thermodynamics Applied to Cosmic Matter near Big-Bang Times
  Author(s): Hans J. Fahr* and M. Heyl
  
  In this paper, we study the situation of cosmic matter near the suspected matter singularity, i.e. at the beginning of the Hubble expansion of the universe. It turns out that this universe, if it starts from a matter singularity, must have started from cosmic gas phases of very high densities and extremely hot temperatures. To correctly describe the dynamics of these early cosmic gas phases, it is necessary to use a so-called relativistic thermodynamics, which can handle temperatures of the order of kT ∝ m0 c2 , when further energy input does only marginally increase particle velocities, but mainly increases particle masses. These “kinetic masses” increase not only the mass of the universe but also the cosmic gravitational field and need to be taken into account, when deriving the finally resulting, consistent cosmic scale dynamics. This consistency is what .. Read More»
  

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