Nonlinear Growth of Density Contrast and Formation of Galaxies in a Neutrino-Dominated Universe : Astrophysics and Relativity

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概要

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• The growth of density contrast of collisoinless and nucleonic matter is pursued from the decoupling era up to the present in the Newtonian mechanics. The negative density perturbation of collisionless particles grows quickly to the void and surrounding ridge. Meanwhile, the shell-crossing occurs. The nucleonic matter increases rapidly due to the dissipation of kinetic energy by the pressure force. The dependence of results upon the amplitude of the initial density perturbation is made clear. If the galaxies stability of ridges, a possible scenario for the formation of the large-scale structure of the universe within the adiabatic theory is presented.

• 理論物理学刊行会の論文
• 1984-08-25

著者

• IKEUCHI Satoru

  Department of Astrophysics, Nagoya University

• Umemura Masayuki

  Department Of Neuropsychopharmacology And Hospital Pharmacy Nagoya University Graduate School Of Med

• Umemura Masayuki

  Department Of Physics Hokkaido University

• Ikeuchi Satoru

  Department Of Astrophysics Nagoya University

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