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Lookup NU author(s): Dr Christopher HarrisonORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2023 Oxford University Press. All rights reserved. We present spatially resolved H α properties of 21 type 1 AGN host galaxies at z ∼ 2 derived from the SUPER survey. These targets were observed with the adaptive optics capabilities of the SINFONI spectrograph, a near-infrared integral field spectrograph, that provided a median spatial resolution of 0.3 arcsec (∼2 kpc). We model the H α emission line profile in each pixel to investigate whether it traces gas in the narrow line region or if it is associated with star formation. To do this, we first investigate the presence of resolved H α emission after subtracting the AGN PSF. We find extended H α emission in 16 out of the 21 type 1 AGN host galaxies (76 per cent). Based on the BPT diagnostics, optical line flux ratios and line widths (FWHM), we show that the H α emission in five galaxies is ionized by the AGN (30 per cent), in four galaxies by star formation (25 per cent) and for the rest (45 per cent), the ionization source is unconstrained. Two galaxies show extended H α FWHM >600 km s−1, which is interpreted as a part of an AGN-driven outflow. Morphological and kinematic maps of H α emission in targets with sufficient signal-to-noise ratio suggest the presence of rotationally supported discs in six galaxies and possible presence of companions in four galaxies. In two galaxies, we find an anticorrelation between the locations of extended H α emission and [O III]-based ionized outflows, indicating possible negative feedback at play. However, in the majority of galaxies, we do not find evidence of outflows impacting H α-based star formation.
Author(s): Kakkad D, Mainieri V, Vietri G, Lamperti I, Carniani S, Cresci G, Harrison C, Marconi A, Bischetti M, Cicone C, Circosta C, Husemann B, Man A, Mannucci F, Netzer H, Padovani P, Perna M, Puglisi A, Scholtz J, Tozzi G, Vignali C, Zappacosta L
Publication type: Article
Publication status: Published
Journal: Monthly Notices of the Royal Astronomical Society
Year: 2023
Volume: 520
Issue: 4
Pages: 5783-5802
Print publication date: 01/04/2023
Online publication date: 09/02/2023
Acceptance date: 31/01/2023
Date deposited: 15/08/2024
ISSN (print): 0035-8711
ISSN (electronic): 1365-2966
Publisher: Oxford University Press
URL: https://doi.org/10.1093/mnras/stad439
DOI: 10.1093/mnras/stad439
ePrints DOI: 10.57711/web6-4h74
Data Access Statement: The IFS data products will be made publicly available via ESO Phase 3 data release. The raw data can be retrieved from the ESO archive: archive.eso.org under the programme ID 196.A-0377.
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