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Interrogating Seyferts with NebulaBayes: Spatially Probing the Narrow-line Region Radiation Fields and Chemical Abundances

Thomas, Adam; Dopita, Michael; Kewley, Lisa; Groves, Brent; Sutherland, Ralph; Hopkins, Andrew M.; Blanc, Guillermo A.


NebulaBayes is a new Bayesian code that implements a general method of comparing observed emission-line fluxes to photoionization model grids. The code enables us to extract robust, spatially resolved measurements of abundances in the extended narrow-line regions (ENLRs) produced by Active Galactic Nuclei (AGN). We observe near-constant ionization parameters but steeply radially declining pressures, which together imply that radiation pressure regulates the ENLR density structure on large...[Show more]

CollectionsANU Research Publications
Date published: 2018-03-28
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/aab3db


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