Mathematics – Logic
Scientific paper
Jan 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997cokon.100..313b&link_type=abstract
Communications of the Konkoly Observatory, No. 100 (Vol. XII, 2), p. 313-318 (1997)
Mathematics
Logic
Scientific paper
We present results of SPH (Smoothed Particle Hydrodynamics) simulations of the collapse and subsequent evolution of the isolated, initially constant-density perturbation in cosmologically motivated situation. The protogalaxy perturbation made of dark and baryonic matter in a 10:1 ratio is taken initially in solid-body rotation and in Hubble flow. The model includes gasdynamics, radiative processes, star formation and supernova feedback. The results show that the accounting for chaotic motions and the time lag between initial development of suitable conditions for star formation and star formation itself provides the realistic description of the process of galaxy formation and evolution. It is also shown that the gas consumption problem accompanying the standard modelling of the process of galaxy formation and dynamical and chemical evolution seems to be a model artifact.
Berczik Peter
Kravchuk Sergei G.
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