We review the use of emission lines for understanding galaxy evolution, focusing on
excitation source, metallicity, ionization parameter, ISM pressure, and electron density. We …

We present emission-line ratios from a sample of 27 Lyman-break galaxies from z∼ 5.5− 9.5
with− 17.0< M 1500<− 20.4, measured from ultra-deep JWST/NIRSpec multi-object …

The use of integral field spectroscopy is since recently allowing to measure the emission line
fluxes of an increasingly large number of star-forming galaxies, both locally and at high …

Using observations from the MOSFIRE Deep Evolution Field survey, we investigate the
physical conditions of star-forming regions in z∼ 2.3 galaxies, specifically the electron …

Abstract We utilize Sloan Digital Sky Survey imaging and spectroscopy of~ 53,000 star-
forming galaxies at z~ 0.1 to study the relation between stellar mass and gas-phase …

We use the chemical evolution predictions of cosmological hydrodynamic simulations with
our latest theoretical stellar population synthesis, photoionization, and shock models to …

We analyze the IUE UV and the optical spectra of 39 starburst and blue compact galaxies in
order to study the average properties of dust extinction in extended regions of galaxies. The …

We investigate the effect of metallicity calibrations, AGN classification, and aperture covering
fraction on the local mass-metallicity (MZ) relation using 27,730 star-forming galaxies from …

Simple relations for deriving the oxygen abundance in H ii regions with intensities of the
three strong emission lines R 2, R 3, and N 2 (R calibration) or S 2, R 3, and N 2 (S …

We have used a combination of stellar population synthesis and photoionization models to
develop a set of ionization parameter and abundance diagnostics based only on the use of …