Chemo-dynamical simulations of galaxies
Chiaki Kobayashi
TL;DR
This paper presents chemo-dynamical galaxy simulations incorporating star formation, feedback, and chemical enrichment, revealing how hypernova feedback influences galaxy evolution and chemical properties across different galactic components.
Contribution
It introduces a comprehensive 3D hydrodynamical model that highlights the critical role of hypernova feedback in reproducing observed galaxy properties.
Findings
Hypernova feedback resolves the [Zn/Fe] problem.
The model reproduces cosmic star formation rate history.
Different galactic components show distinct kinematics and chemical abundances.
Abstract
We simulate the formation and evolution of galaxies with a self-consistent 3D hydrodynamical model including star formation, supernova feedback, and chemical enrichment. Hypernova feedback plays an essential role not only in solving the [Zn/Fe] problem, but also reproducing the cosmic star formation rate history and the mass-metallicity relations. In a Milky-Way type galaxy, kinematics and chemical abundances are different in bulge, disk, and thick disk because of different star formation histories and the contribution of Type Ia Supernovae.
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astrophysics and Star Formation Studies · Astronomy and Astrophysical Research