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

Massive black holes (BHs) are at once exotic and yet ubiquitous, residing at the centers of
massive galaxies in the local Universe. Recent years have seen remarkable advances in …

We report ultra-deep, medium-resolution spectroscopic observations for four quiescent
galaxies with log at. These data were obtained with JWST NIRSpec as part of the Early …

It remains a major challenge to derive a theory of cloud-scale (pc) star formation and
feedback, describing how galaxies convert gas into stars as a function of the galactic …

Accounting for nebular emission when modeling galaxy spectral energy distributions (SEDs)
is important, as both line and continuum emissions can contribute significantly to the total …

We study the spatially resolved excitation properties of the ionized gas in a sample of 646
galaxies using integral field spectroscopy data from the Sloan Digital Sky Survey IV Mapping …

The final product of galaxy evolution through cosmic time is the population of galaxies in the
local universe. These galaxies are also those that can be studied in most detail, thus …

We use integral field spectroscopy from the PHANGS–MUSE survey, which resolves the
ionised interstellar medium structure at∼ 50 pc resolution in 19 nearby spiral galaxies, to …

We present a new model of the nebular emission from star-forming galaxies in a wide range
of chemical compositions, appropriate to interpret observations of galaxies at all cosmic …

We use the W Hα versus [N ii]/Hα (WHAN) diagram introduced by us in previous work to
provide a comprehensive emission-line classification of Sloan Digital Sky Survey galaxies …