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Article Dans Une Revue The Astrophysical Journal Année : 2022

The Black Hole–Galaxy Connection: Interplay between Feedback, Obscuration, and Host Galaxy Substructure

Stéphanie Juneau
  • Fonction : Auteur
Andy Goulding
  • Fonction : Auteur
Julie Banfield
  • Fonction : Auteur
Stefano Bianchi
  • Fonction : Auteur
I-Ting Ho
  • Fonction : Auteur
Michael Dopita
  • Fonction : Auteur
Julia Scharwächter
  • Fonction : Auteur
Franz Bauer
Brent Groves
David Alexander
  • Fonction : Auteur
Rebecca Davies
David Elbaz
  • Fonction : Auteur
Emily Freeland
  • Fonction : Auteur
Elise Hampton
  • Fonction : Auteur
Lisa Kewley
  • Fonction : Auteur
Robert Nikutta
  • Fonction : Auteur
Prajval Shastri
  • Fonction : Auteur
Xinwen Shu
  • Fonction : Auteur
Frédéric Vogt
  • Fonction : Auteur
Tao Wang
O. Ivy Wong
  • Fonction : Auteur
Jong-Hak Woo
  • Fonction : Auteur

Résumé

Abstract There is growing evidence for physical influence between supermassive black holes and their host galaxies. We present a case study of the nearby galaxy NGC 7582, for which we find evidence that galactic substructure plays an important role in affecting the collimation of ionized outflows as well as contributing to the heavy active galactic nucleus (AGN) obscuration. This result contrasts with a simple, small-scale AGN torus model, according to which AGN-wind collimation may take place inside the torus itself, at subparsec scales. Using 3D spectroscopy with the Multi Unit Spectroscopic Explorer instrument, we probe the kinematics of the stellar and ionized gas components as well as the ionization state of the gas from a combination of emission-line ratios. We report for the first time a kinematically distinct core (KDC) in NGC 7582, on a scale of ∼600 pc. This KDC coincides spatially with dust lanes and starbursting complexes previously observed. We interpret it as a circumnuclear ring of stars and dusty, gas-rich material. We obtain a clear view of the outflowing cones over kiloparsec scales and demonstrate that they are predominantly photoionized by the central engine. We detect the back cone (behind the galaxy) and confirm previous results of a large nuclear obscuration of both the stellar continuum and H ii regions. While we tentatively associate the presence of the KDC with a large-scale bar and/or a minor galaxy merger, we stress the importance of gaining a better understanding of the role of galaxy substructure in controlling the fueling, feedback, and obscuration of AGNs.
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hal-03585632 , version 1 (24-02-2022)

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Stéphanie Juneau, Andy Goulding, Julie Banfield, Stefano Bianchi, Pierre-Alain Duc, et al.. The Black Hole–Galaxy Connection: Interplay between Feedback, Obscuration, and Host Galaxy Substructure. The Astrophysical Journal, 2022, 925 (2), pp.203. ⟨10.3847/1538-4357/ac425f⟩. ⟨hal-03585632⟩
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