Evaporation of cosmological quark drops and relativistic radiative transfer

Details Evaporation of cosmological quark drops and relativistic radiative transfer Evaporation of cosmological quark drops and relativistic radiative transfer

1995-10-06

arxiv.org/abs/astro-ph/9510039v1

Phys.Rev. D53 (1996) 5411-5425

Astronomy and Astrophysics

Astrophysics

32 pages, latex; 12 postscript figures are available in a separate uuencoded compressed file

Scientific paper

10.1103/PhysRevD.53.5411

We discuss the results of a full relativistic treatment of the hydrodynamics of disconnected quark regions during the final stages of the cosmological quark-hadron transition. In this study, which represents a further development of a previous analysis of the evaporation of cosmological quark drops, the effects of long range energy and momentum transfer via electromagnetically interacting particles are consistently taken into account. For this purpose, a set of relativistic Lagrangian equations describing the evolution of the strongly interacting fluids is coupled to a system of equivalent equations accounting for the hydrodynamics of the fluid of electromagnetically interacting particles. The complete set of equations has then been solved numerically and results are presented from this. The inclusion of relativistic radiative transfer produces significantly different results, with the formation of high density regions at the end of the drop evaporation being particularly relevant. A comparison is made with results obtained for the previous radiation-free model and the cosmological implications concerning baryon number concentrations are briefly discussed.

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