RESOLVE and ECO: the Galaxy Metallicity Distributions of Observed and Simulated Volumes
Abstract
Using the highly complete REsolved Spectroscopy Of a Local VolumE (RESOLVE) survey along with its larger but less complete Environmental COntext (ECO) catalog, we construct the metallicity distribution function for a volume-limited population of galaxies with masses reaching into the dwarf regime. We use public Bayesian inference codes for this analysis, which allows us to improve upon point estimates of gas-phase metallicity and construct the full metallicity PDF for each galaxy and for the population as a whole. Finally, we compare the empirical galaxy metallicity distribution to the galaxy metallicity distribution generated in large-scale galaxy formation simulations to derive new constraints on models of chemical evolution in galaxies ranging from the dwarf to giant regimes.
- Publication:
-
American Astronomical Society Meeting Abstracts #235
- Pub Date:
- January 2020
- Bibcode:
- 2020AAS...23522803M