11:00 am–12:00 pm ERC 401
Title: Chemical Enrichment in Star-Forming Dwarf Galaxies: Linking Stars, Gas, and Local Structure
Abstract: The relationship between stellar and gas-phase metal abundances, and their evolution across galaxy mass, provides key insight into galaxy assembly. In this talk, I will present a sample of low-mass, low-redshift star-forming dwarf galaxies observed with Keck/KCWI to compare stellar and nebular abundances. Using a novel method, we measure stellar iron and magnesium abundances, along with gas-phase oxygen in star-forming galaxies, enabling a direct comparison between stellar and gas-phase metallicity tracers, including a comparison of α-elements (Mg and O) in stars and the ISM. I will then present spatially resolved measurements that map variations in star formation, ionization and chemical properties within these galaxies, and discuss how global metallicity scaling relations, including the mass-metallicity relation and stellar-gas metallicity correlation, can emerge from the local disorder observed across the sample.
Zoom: https://uchicago.zoom.us/j/96602368359?pwd=IkjlvbgYWG56LPvnyibAje80dqc9wI.1
