Image Details
Caption: Figure 5.
Emission-line diagram showing the relationship between log([N II]/Hα) and log(Hα) as a function of the distance from the AGN (designated here at the center) in kiloparsec. The central 0.5 kpc have been excised to remove any issues pertaining to multiple emission lines.
© 2025. The Author(s). Published by the American Astronomical Society.