GCM

Galactic Chemical Evolution

Stars and interstellar gas in galaxies exhibit diverse chemical
element abundance patterns that are shaped by their
environment and formation histories. The aim of Galactic
Chemical Evolution (GCE) is to use the observed abundances
to unlock earlier epochs in the Universe, probe the
mechanisms of galaxy formation, and gain insight into the
evolution of stellar systems.
Stars and interstellar gas in galaxies exhibit diverse chemical element abundance patterns that are shaped by their
environment and formation histories. The aim of Galactic Chemical Evolution (GCE) is to use the observed abundances
to unlock earlier epochs in the Universe, probe the mechanisms of galaxy formation, and gain insight into the evolution of stellar systems. （Gibson ～2003）

GCM Ingredients

IMF

SFR

Stellar Yield

Stellar life time

Energy component

Phenomenology

LBG

QSO

GRB

Morphology

Elliptical

My work

The nature of Long-GRB host galaxies from chemical abundances

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