Chemical Abundances in Star-Forming Galaxies at High Redshift
Dawn K. Erb (UCSB)
TL;DR
This paper reviews methods for measuring chemical abundances in high-redshift star-forming galaxies, discusses the evolution of the mass-metallicity relation, and explores implications for galaxy evolution and future research directions.
Contribution
It provides a comprehensive overview of metallicity measurement techniques and summarizes recent findings on the mass-metallicity relation at 1<z<3.
Findings
Mass-metallicity relation evolves with redshift
Metallicity measurements inform gas inflow and outflow processes
Future prospects include improved high-redshift metallicity measurements
Abstract
A galaxy's metallicity provides a record of star formation, gas accretion, and gas outflow, and is therefore one of the most informative measurements that can be made at high redshift. It is also one of the most difficult. I review methods of determining chemical abundances in distant star-forming galaxies, and summarize results for galaxies at 1<z<3. I then focus on the mass-metallicity relation, its evolution with redshift, and its uses in constraining inflows and outflows of gas, and conclude with a brief discussion of future prospects for metallicity measurements at high redshift.
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