Advances in Astronomy and Space Physics, Volume 3, Issue 2 (2013)

Explosive evolution of galaxies at high redshifts due to minor mergers

A. V. Kats1, V. M. Kontorovich2,3

1Institute for Radio Physics and Electronics of NAS of Ukraine, 12 Proskury Str., Kharkiv, 61085, Ukraine
2Institute of Radio Astronomy of NAS of Ukraine, 4 Chervonopraporna Str., Kharkiv, 61002, Ukraine
3Kharkiv National V. N. Karazin University, 4, Svobody square, Kharkiv, 61022, Ukraine

Abstract
In the case of minor mergers analytical solutions of kinetic Smoluchowski equation with a source that corresponds to separation of galaxies from the general expansion of the universe have been found. The solutions describe the explosive evolution of galaxy mass function in the presence of the dark matter. The evolution of power-law asymptote at large redshifts is discussed.

Keywords:
galaxies, minor mergers, galaxy mass function, galaxy evolutions