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Polycyclic Aromatic Hydrocarbon Emission in the Central Regions of Three Seyferts and the Implication for Underlying Feedback Mechanisms

  • Authors: Lulu Zhang, Ismael García-Bernete, Chris Packham, Fergus R. Donnan, Dimitra Rigopoulou, Erin K. S. Hicks, Ric I. Davies, Taro T. Shimizu, Almudena Alonso-Herrero, Cristina Ramos Almeida, Miguel Pereira-Santaella, Claudio Ricci, Andrew J. Bunker, Mason T. Leist, David J. Rosario, Santiago García-Burillo, Laura Hermosa Muñoz, Francoise Combes, Masatoshi Imanishi, Alvaro Labiano, Donaji Esparza-Arredondo, Enrica Bellocchi, Anelise Audibert, Lindsay Fuller, Omaira González-Martín, Sebastian Hönig, Takuma Izumi, Nancy A. Levenson, Enrique López-Rodríguez, Daniel Rouan, Marko Stalevski, Martin J. Ward

Lulu Zhang et al 2024 The Astrophysical Journal Letters 975 .

  • Provider: AAS Journals

Caption: Figure 4.

Diagnostic diagrams of ionized emission-line ratios as (a) [Ne V]/[Ne II] vs. [Ne III]/[Ne II], (b) [O IV]/[Ne II] vs. [Ne III]/[Ne II], and (c) [S IV]/[Ne II] vs. [Ne III]/[Ne II] for apertures in the three targets with markers the same as in Figure 3. The reddish, greenish, and purplish contours in each panel correspond to the model calculations for AGN, fast radiative shocks (including the shock precursor), and H II regions, respectively, with each contour containing 30%, 60%, and 90% of the model results from the inside to the outside.

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