Optical Strong Line Ratios Cannot Distinguish between Stellar Populations and Accreting Black Holes at High Ionization Parameters and Low Metallicities

High-redshift observations from JWST indicate that optical strong line ratios do not carry the same constraining power as they do at low redshifts. Critically, this prevents a differentiation between stellar and black hole accretion-driven ionization, thereby obscuring both active galactic nuclei (A...

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Prif Awduron:	Nikko J. Cleri, Grace M. Olivier, Bren E. Backhaus, Joel Leja, Casey Papovich, Jonathan R. Trump, Pablo Arrabal Haro, Véronique Buat, Denis Burgarella, Emilie Burnham, Antonello Calabrò, Jonathan H. Cohn, Justin W. Cole, Kelcey Davis, Mark Dickinson, Steven L. Finkelstein, Ray Garner III, Michaela Hirschmann, Weida Hu, Taylor A. Hutchison, Dale D. Kocevski, Anton M. Koekemoer, Rebecca L. Larson, Zach J. Lewis, Michael V. Maseda, Lise-Marie Seillé, Raymond C. Simons
Fformat:	Artigo
Iaith:	Inglês
Cyhoeddwyd:	IOP Publishing 2025-01-01
Cyfres:	The Astrophysical Journal
Pynciau:	Active galactic nuclei Interstellar medium High-redshift galaxies Emission line galaxies Galaxy evolution
Mynediad Ar-lein:	https://doi.org/10.3847/1538-4357/ae0f17
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