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JWST/NIRSpec Observations of High-ionization Emission Lines in Galaxies at High Redshift

JWST spectroscopy has built large emission line samples at z  ≳ 4, but it has yet to confidently reveal many galaxies with the hard radiation fields commonly associated with active galactic nucleus photoionization. While this may indicate a weaker UV ionizing spectrum in many z  > 4 active galactic...

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Principais autores: Mengtao Tang, Daniel P. Stark, Adèle Plat, Anna Feltre, Harley Katz, Peter Senchyna, Charlotte A. Mason, Lily Whitler, Zuyi Chen, Michael W. Topping
Format: Artigo
Sprog:Inglês
Udgivet: IOP Publishing 2025-01-01
Serier:The Astrophysical Journal
Fag:
High-redshift galaxies
Active galactic nuclei
Online adgang:https://doi.org/10.3847/1538-4357/adfd57
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