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http://hdl.handle.net/20.500.12386/24390
Titolo: | Mapping Seyfert and LINER Excitation Modes in the Inner kpc of NGC 3393 | Autori: | Maksym, W. Peter Fabbiano, Giuseppina Elvis, Martin Karovska, Margarita PAGGI, Alessandro Raymond, John Wang, Junfeng Storchi-Bergmann, Thaisa |
Data pubblicazione: | 2016 | Rivista: | THE ASTROPHYSICAL JOURNAL | Numero: | 829 | Fascicolo: | 1 | Da pagina:: | 46 | Abstract: | We mapped the extended narrowline region (ENLR) of NGC 3393 on scales of r≲ 4<SUP>\prime\prime</SUP> (∼ 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<SUP>\prime\prime</SUP> ; 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. | URI: | http://hdl.handle.net/20.500.12386/24390 | URL: | https://iopscience.iop.org/article/10.3847/0004-637X/829/1/46 | ISSN: | 0004-637X | DOI: | 10.3847/0004-637X/829/1/46 | Bibcode ADS: | 2016ApJ...829...46M | Fulltext: | open |
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