Unveiling AGN outflows: [O <scp>iii</scp>] outflow detection rates and correlation with low-frequency radio emission
ABSTRACT Some active galactic nuclei (AGN) host outflows which have the potential to alter the host galaxy’s evolution (AGN feedback). These outflows have been linked to enhanced radio emission. Here, we investigate the connection between low-frequency radio emission using the international LOw Frequency ARray (LOFAR) telescope and [O iii] $\lambda$5007 ionized gas outflows using the Sloan Digital Sky Survey. Using the LOFAR Two-metre Sky Survey (LoTSS) Deep Fields, we select 198 AGN with optical spectra, 115 of which are detected at 144 MHz, and investigate their low-frequency radio emission properties. The majority of our sample do not show a radio excess when considering radio luminosity – star formation rate relationship, and are therefore not driven by powerful jets. We extract the [O iii] $\lambda$5007 kinematics and remove AGN luminosity dependencies by matching the radio detected and non-detected AGN in $L_{\mathrm{6\, \mu m}}$ and redshift. Using both spectral fitting and $W_{80}$ measurements, we find radio detected AGN have a higher outflow rate (67.2 $\pm$ 3.4 per cent) than the radio non-detected AGN (44.6 $\pm$ 2.7 per cent), indicating a connection between ionized outflows and the presence of radio emission. For spectra where there are two components of the [O iii] emission line present, we normalize all spectra by the narrow component and find that the average broad component in radio detected AGN is enhanced compared to the radio non-detected AGN. This could be a sign of higher gas content, which is suggestive of a spatial relationship between [O iii] outflows and radio emission in the form of either low-powered jets or shocks from AGN winds.
Authors
- L. K. Morabito (ORCID: https://orcid.org/0000-0003-0487-6651)
- C. M. Harrison (ORCID: https://orcid.org/0000-0001-8618-4223)
- R. Kondapally (ORCID: https://orcid.org/0000-0001-6127-8151)
- G. Calistro Rivera (ORCID: https://orcid.org/0000-0003-0085-6346)
- K. J. Duncan (ORCID: https://orcid.org/0000-0001-6889-8388)
- Sthabile Kolwa (ORCID: https://orcid.org/0000-0001-9821-4987)
- D. J. B. Smith (ORCID: https://orcid.org/0000-0001-9708-253X)
- Jan Scholtz
- Ryan C. Hickox (ORCID: https://orcid.org/0000-0003-1468-9526)
- D. M. Alexander (ORCID: https://orcid.org/0000-0002-5896-6313)
- M I Arnaudova (ORCID: https://orcid.org/0000-0002-1128-0592)
- E. L. Escott (ORCID: https://orcid.org/0009-0009-5108-4324)
Institutions
- Dartmouth College (US)
- Leiden University (NL)
- European Southern Observatory (DE)
- University of Hertfordshire (GB)
- Durham University (GB)
- University of Johannesburg (ZA)
- University of Cambridge (GB)
- Royal Observatory (GB)
- Newcastle University (GB)
- University of Edinburgh (GB)
Publication Details
- Journal
- Monthly Notices of the Royal Astronomical Society
- Published
- 2024-11-27
- DOI
- https://doi.org/10.1093/mnras/stae2645
- Citations
- 6
- Primary Topic
- Ionosphere and magnetosphere dynamics
- Type
- article
- Field-Weighted Citation Impact
- 1.99
Funders
- National Aeronautics and Space Administration
- UK Research and Innovation
- Durham University
- Science Foundation Ireland
- Bundesministerium für Bildung und Forschung
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek
- Nuclear Safety and Security Commission
- Max-Planck-Gesellschaft
- Centre National de la Recherche Scientifique
- Istituto Nazionale di Astrofisica
- Université d'Orléans
- Ministerium für Innovation, Wissenschaft und Forschung des Landes Nordrhein-Westfalen
- Gauss Centre for Supercomputing
- Observatoire de Paris, Université de Recherche Paris Sciences et Lettres
- Medical Research Council
- Science and Technology Facilities Council
- DST-NRF Centre Of Excellence In Tree Health Biotechnology