On the star formation rate and turbulent dissipation in galactic models
E. P. Kurbatov
TL;DR
This paper proposes models for star formation and turbulent energy dissipation in the interstellar medium, explaining observed delays in galactic star formation history within a hierarchical galaxy formation framework.
Contribution
It introduces new models for star formation and turbulence dissipation that incorporate ISM turbulization effects, linking them to galaxy formation timelines.
Findings
Explains the observed delay in star formation in the Galaxy.
Models successfully reproduce stellar age distributions.
Provides a theoretical basis for turbulence's role in star formation timing.
Abstract
We suggest a model for star formation function and a model for dissipation of the turbulent energy of interstellar medium. Star formation function takes into account the effect of turbulization of the ISM. It is shown that application of mentioned relations to the hierarchical scenario of formation of galaxies allows to explain the observed delay of star formation in the Galaxy that corresponds to the range of stellar ages from 8--9 to 10--12 Gyr.
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