Galaxy Formation — a Condensation Process Just after Recombination

A scenario of galaxy formation is put forward which is a process of sudden condensation just after recombination. It is essentially based on the fact that the cosmic matter gas after recombination is a general relativistic Boltzmann gas which runs within a few 10 years into a state very close to collision–dominated equilibrium. The mass spectrum of axially symmetric condensation ”drops” extends from the lower limitM ≃ 10M⊙ to the upper limit M ≃ 10M⊙. The lower limit masses are spheres whereas the upper limit masses are extremely thin pancakes. These pancakes contract within a time of about 2, 5 · 10y to fastly rotating spiral galaxies with ordinary proportions. In this final state they have a redshift z ≃ 3. At an earlier time during their contraction they are higly active and are observed with a redshift z ≃ 5. PACS numbers: 98.62.Ai; 04.20. – q