Mapping Seyfert and LINER Excitation Modes in the Inner kpc of NGC 3393

Journal
Date Issued
2016
Author(s)
Maksym, W. Peter
•
Fabbiano, Giuseppina
•
Elvis, Martin
•
Karovska, Margarita
•
•
Raymond, John
•
Wang, Junfeng
•
Storchi-Bergmann, Thaisa
DOI
Abstract
We mapped the extended narrowline region (ENLR) of NGC 3393 on scales of r≲ 4\prime\prime (∼ 1 kpc) from the nucleus using emission line images of Hα λ6563, [O III]λ 5007, and [S II]λ λ 6717,6731, taken with the Hubble Space Telescope as part of the CHandra survey of Extended Emission line Regions in nearby Seyfert galaxies (CHEERS). By mapping these lines onto a spatially resolved Baldwin-Phillips-Terlevich diagram, we investigate the impact of feedback from a Compton-thick active galactic nucleus on its circumnuclear ISM. We find that the expected Seyfert-like emission within the ionization bicone (≲ 3\prime\prime ; 770 pc). We also find a new, figure-8-shaped low ionization emission line region (LINER) cocoon enveloping the bicone and defining a sharp (≲ 100 pc) transition between higher and lower-ionization zones. These data illustrate the morphological dependence of ionization states of the ENLR relative to bicone and host gas geometries.
Volume
829
Issue
1
Start page
46
Uri
Url
Issn Identifier
0004-637X
Ads BibCode
2016ApJ...829...46M
Rights
open.access
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