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

The evolution of the content of heavy elements in galaxies, the relative chemical
abundances, their spatial distribution, and how these scale with various galactic properties …

We demonstrate a novel technology that combines the power of the multi-object
spectrograph with the spatial multiplex advantage of an integral field spectrograph (IFS). The …

We present the largest and most homogeneous catalog of H ii regions and associations
compiled so far. The catalog comprises more than 7000 ionized regions, extracted from 306 …

We study the gas phase metallicity (O/H) and nitrogen abundance gradients traced by star-
forming regions in a representative sample of 550 nearby galaxies in the stellar mass range …

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 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 …

We investigate the relationships between the characteristic oxygen abundance, the radial
abundance gradient, and the macroscopic properties of spiral galaxies by examining the …

ABSTRACT I have assembled a diverse sample of galaxies from the literature with far-
ultraviolet (FUV), optical, infrared (IR), and radio luminosities to explore the calibration of …

The distribution of metals within a galaxy traces the baryon cycle and the buildup of galactic
disks, but the detailed gas phase metallicity distribution remains poorly sampled. We have …