Extreme z>3 emission-line ratios are reproduced only by combining harder ionizing spectra, ionization parameters from massive star clusters, and enhanced nitrogen abundances.
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5 Pith papers cite this work, alongside 63 external citations. Polarity classification is still indexing.
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High-resolution mapping reveals nitrogen enrichment around super star clusters in NGC 5253, attributed to Wolf-Rayet stars with material expelled to surrounding gas.
New high-redshift empirical T_e-based metallicity calibrations for strong-line ratios derived from direct oxygen abundances in 46 galaxies spanning z=1.4-8.7.
New empirical calibrations between 19 emission-line ratios and oxygen abundance are derived from direct electron-temperature measurements in 139 star-forming galaxies at z=1.4-10.6.
Adding SITELLE [O II] to PHANGS-MUSE for 556 H II regions recovers known metallicity-calibration offsets, shows <0.03–0.04 dex gradient scatter for many methods, and favors [S III]/[S II] as a robust ionization tracer.
citing papers explorer
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Origins of Extreme Emission-Line Ratios in z > 3 Galaxies: Insights from the Lumen Model
Extreme z>3 emission-line ratios are reproduced only by combining harder ionizing spectra, ionization parameters from massive star clusters, and enhanced nitrogen abundances.
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The heart of NGC 5253 as seen with MUSE-NFM: nitrogen enrichment through stellar chemical feedback at parsec scales
High-resolution mapping reveals nitrogen enrichment around super star clusters in NGC 5253, attributed to Wolf-Rayet stars with material expelled to surrounding gas.
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Direct T_e-based Metallicities of z=2-9 Galaxies with JWST/NIRSpec: Empirical Metallicity Calibrations Applicable from Reionization to Cosmic Noon
New high-redshift empirical T_e-based metallicity calibrations for strong-line ratios derived from direct oxygen abundances in 46 galaxies spanning z=1.4-8.7.
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The AURORA Survey: High-Redshift Empirical Metallicity Calibrations from Electron Temperature Measurements at z=2-10
New empirical calibrations between 19 emission-line ratios and oxygen abundance are derived from direct electron-temperature measurements in 139 star-forming galaxies at z=1.4-10.6.
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Exploring the synergies of $[\mathrm{O\,II}]\lambda 3727$ with MUSE spectroscopy in PHANGS H II regions
Adding SITELLE [O II] to PHANGS-MUSE for 556 H II regions recovers known metallicity-calibration offsets, shows <0.03–0.04 dex gradient scatter for many methods, and favors [S III]/[S II] as a robust ionization tracer.