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From the 1 of 8 linked papers with an AI index.

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8 papers

astro-ph.CO2026

Charting the expansion of the Universe from z0 to z14 with HII galaxies

R. Chávez, R. Terlevich, A. L. González-Morán +14

The authors construct an updated Hubble diagram using 243 giant H II regions and H II galaxies from redshift 0 to ~14, applying the L(Hβ)–σ relation to derive cosmological paramete…

astro-ph.GA2026

Electron densities and filling factors of extragalactic HII regions: NGC 2403 and NGC 628

Almudena Zurita, Fabio Bresolin, Estrella Florido +3

Measurements of the electron density of populations of extragalactic HII regions in nearby galaxies remain limited, despite the relevance of this quantity for characterizing the po…

astro-ph.GA2026

Consistent Gas-Phase Temperatures and Metallicities from UV and Optical Nebular Emission: A Reliable Foundation from z=0 to Cosmic Dawn

Erin Huntzinger, Yuguang Chen, Tucker Jones +6

The rest-frame UV spectra of star-forming galaxies are increasingly important as they become one of the primary windows to probe the physical properties of cosmic dawn (z>8) galaxi…

astro-ph.GA2026

Joint Optical and Infrared Observations of N and O Reveal the Dust-Obscured Gas in Haro 3

Yuguang Chen, Tucker Jones, Ryan L. Sanders +22

Accurate chemical compositions of star-forming regions are a critical diagnostic tool to characterize the star formation history and gas flows which regulate galaxy formation. Howe…

astro-ph.GA2025

Consistent gas-phase C/O abundances from UV and optical emission lines: a robust scale for chemical evolution across cosmic time

Paige M. Kelly, Tucker Jones, Yuguang Chen +5

The carbon to oxygen (C/O) abundance ratio is a valuable tracer of star formation history, as C and O enrichment occurs on different timescales. However, measurements based on ultr…

astro-ph.CO2025

The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics

Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533

The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…