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Mapping the excitation mechanisms in the LINER I active galactic nucleus NGC 5005 : positive feedback and a thin LINER cocoon
We present a spatially resolved Baldwin–Phillips–Terlevich analysis of the narrow-line region (NLR) in the low-ionization nuclear emission-line region (LINER) I galaxy NGC 5005 using Hubble Space Telescope narrowband imaging of [O
dc.abstract.en | We present a spatially resolved Baldwin–Phillips–Terlevich analysis of the narrow-line region (NLR) in the low-ionization nuclear emission-line region (LINER) I galaxy NGC 5005 using Hubble Space Telescope narrowband imaging of [O $_{III}$]λ5007, Hβ, Hα, and [S $_{II}$]λλ6717,6731. With a resolution of ≲ $0.^{''}1$ (≲10 pc at z = 0.003), we dissect the NLR into H ii (star-forming), Seyfert, and LINERs across spatial scales extending up to r ∼ 8 kpc from the nucleus. Our results reveal a compact nuclear region exhibiting Seyfert-like emission, consistent with photoionization by a low-luminosity active galactic nucleus (AGN). Surrounding this Seyfert-like nucleus is a thin (∼20 pc thick) higher-excitation LINER-like cocoon, likely arising from shock-excited gas in the interstellar medium (ISM). Beyond this cocoon, a centrally localized extended (r ∼ 1 kpc) LINER-like region surrounds the Seyfert-like nucleus and cocoon, likely ionized by the AGN, while a more extended (r ≳ 2 kpc) LINER-like zone may be ionized by a combination of post-AGB stars and shocks from gas inflows. We also detect H $_{II}$–like regions at both small and large scales. In the inner 500 pc, these regions may be triggered by jet–ISM interactions, potentially inducing localized star formation. At r ∼ 4 kpc, we identify an outer H $_{II}$–like region tracing a large-scale star-forming ring, where ionization is dominated by young stars. | |
dc.affiliation | Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut – Obserwatorium Astronomiczne | |
dc.contributor.author | Trindade Falcão, Anna | |
dc.contributor.author | Fabbiano, G. | |
dc.contributor.author | Elvis, M. | |
dc.contributor.author | Zhu, P. | |
dc.contributor.author | Kraemer, S. | |
dc.contributor.author | Maksym, W. P. | |
dc.contributor.author | Middei, R. | |
dc.contributor.author | Król, Dominika - 261432 | |
dc.date.accessioned | 2025-07-24T08:42:38Z | |
dc.date.available | 2025-07-24T08:42:38Z | |
dc.date.createdat | 2025-07-16T09:02:23Z | en |
dc.date.issued | 2025 | |
dc.date.openaccess | 0 | |
dc.description.accesstime | w momencie opublikowania | |
dc.description.number | 2 | |
dc.description.version | ostateczna wersja wydawcy | |
dc.description.volume | 986 | |
dc.identifier.articleid | 175 | |
dc.identifier.doi | 10.3847/1538-4357/addc64 | |
dc.identifier.eissn | 1538-4357 | |
dc.identifier.issn | 0004-637X | |
dc.identifier.project | DRC AI | |
dc.identifier.uri | https://ruj.uj.edu.pl/handle/item/558151 | |
dc.language | eng | |
dc.language.container | eng | |
dc.rights | Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa | |
dc.rights.licence | CC-BY | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/legalcode.pl | |
dc.share.type | otwarte czasopismo | |
dc.subtype | Article | |
dc.title | Mapping the excitation mechanisms in the LINER I active galactic nucleus NGC 5005 : positive feedback and a thin LINER cocoon | |
dc.title.journal | Astrophysical Journal | |
dc.type | JournalArticle | |
dspace.entity.type | Publication | en |