J/MNRAS/536/1166 Unveiling AGN outflows (Escott+, 2025)
Unveiling AGN outflows: [O III] outflow detection rates and correlation
with low-frequency radio emission.
Escott E.L., Morabito L.K., Scholtz J., Hickox R.C., Harrison C.M.,
Alexander D.M., Arnaudova M.I., Smith D.J.B., Duncan K.J., Petley J.,
Kondapally R., Calistro Rivera G., Kolwa S.
<Mon. Not. R. Astron. Soc. 536, 1166 (2025)>
=2025MNRAS.536.1166E 2025MNRAS.536.1166E (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, radio ; Active gal. nuclei ;
Photometry, millimetric/submm
Keywords: ISM: jets and outflows - galaxies: active - galaxies: jets -
galaxies: kinematics and dynamics - quasars: emission lines -
radio continuum: galaxies
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 LOFAR Telescope and [OIII] λ5007 ionised 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 - SFR
relationship, and are therefore not driven by powerful jets. We
extract the [OIII] λ5007 kinematics and remove AGN luminosity
dependencies by matching the radio detected and non-detected AGN in
L6um and redshift. Using both spectral fitting and W80 measurements,
we find radio detected AGN have a higher outflow rate
(67.2±3.4 percent) than the radio non-detected AGN
(44.6±2.7 percent), indicating a connection between ionised outflows
and the presence of radio emission. For spectra where there are two
components of the [OIII] emission line present, we normalise 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 [OIII] outflows and
radio emission in the form of either low-powered jets or shocks from
AGN winds.
Description:
Target catalogue for the 198 optically selected AGN within the LoTSS
Deep Fields
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
target.dat 808 198 Target Catalogue
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See also:
J/A+A/648/A3 : LOFAR Two-metre Sky Survey Deep Fields DR1 (Kondapally+, 2021)
Byte-by-byte Description of file: target.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- SDSS Unique object identifier for SDSS,
HHMMSS.ss+DDMMSS.s (SDSS_NAME)
20- 37 F18.14 deg RAdeg Right Ascension (J2000) for SDSS positions
(RA_SDSS)
39- 56 F18.15 deg DEdeg Declination (J2000) for SDSS positions
(DEC_SDSS)
58- 76 F19.17 --- z Redshift from SDSS (Z)
78- 82 I5 --- Plate Unique spectroscopic plate number (PLATE)
84- 88 I5 --- MJD Julian date of spectroscopic observation
(MJD)
90- 92 I3 --- FiberID Fiber ID (FIBERID)
94-115 A22 --- LoTSS Unique LoTSS source name (Source_Name)
117-134 F18.14 deg RAOdeg ?=- Optically defined Right Ascension
(J2000) (optRA)
136-153 F18.15 deg DEOdeg ?=- Optically defined Declination (J2000)
(optDec)
155-172 F18.14 deg RALdeg ?=- Right Ascension defined by LoTSS (J2000)
(RA_LoTSS)
174-191 F18.15 deg DELdeg ?=- Declination defined by LoTSS (J2000)
(DEC_LoTSS)
193-216 E24.16 Jy Ftot ?=- The total, integrated Stokes I flux
density of the source at the reference
frequency (Total_flux)
218-241 E24.16 Jy e_Ftot ?=- The 1-sigma on the total flux density of
the source (ETotalflux)
243-266 E24.16 Jy/beam Fpeak ?=- The peak Stokes I flux density per beam
of the source (Peak_flux)
268-291 E24.16 Jy/beam e_Fpeak ?=- The 1-sigma error on the peak flux
density per beam of the source
(EPeakflux)
293-316 E24.16 Jy/beam Islrms ?=- The average background rms value of the
island (Isl_rms)
318-336 F19.14 uJy FSDWFS1c ?=- Recommended SDWFS Spitzer ch1 (3.6um)
flux (aperture and extinction corrected
from 4" aperture) (ch1fluxcorr)
338-355 F18.16 uJy e_FSDWFS1c ?=- Recommended SDWFS Spitzer ch1 (3.6um)
flux error (aperture and extinction
corrected from 4" aperture)
(ch1fluxerrcorr)
357-375 F19.14 uJy FSDWFS2c ?=- Recommended SDWFS Spitzer ch2 (4.5um)
flux (aperture and extinction corrected
from 4" aperture) (ch2fluxcorr)
377-394 F18.16 uJy e_FSDWFS2c ?=- Recommended SDWFS Spitzer ch2 (4.5um)
flux error (aperture and extinction
corrected from 4" aperture)
(ch2fluxerrcorr)
396-414 F19.14 uJy FSDWFS3c ?=- Recommended SDWFS Spitzer ch3 (5.8um)
flux (aperture and extinction corrected
from 4" aperture) (ch3fluxcorr)
416-433 F18.16 uJy e_FSDWFS3c ?=- Recommended SDWFS Spitzer ch3 (5.8um)
flux error (aperture and extinction
corrected from 4" aperture)
(ch3fluxerrcorr)
435-453 F19.14 uJy FSDWFS4c ?=- Recommended SDWFS Spitzer ch4 (8.0um)
flux (aperture and extinction corrected
from 4" aperture) (ch4fluxcorr)
455-472 F18.16 uJy e_FSDWFS4c ?=- Recommended SDWFS Spitzer ch4 (8.0um)
flux error (aperture and extinction
corrected from 4" aperture)
(ch4fluxerrcorr)
474-481 A8 --- Field Which LoTSS Deep Field the source is located
in (Field)
483-502 F20.15 uJy FSWIRE1c ?=- Recommended SWIRE ch1 (3.6um) flux
(aperture and extinction corrected from 4"
aperture) (ch1swireflux_corr)
504-522 F19.16 uJy e_FSWIRE1c ?=- Recommended SWIRE ch1 (3.6um) flux error
(aperture and extinction corrected from 4"
aperture) (ch1swirefluxerr_corr)
524-543 F20.15 uJy FSWIRE2c ?=- Recommended SWIRE ch2 (4.5um) flux
(aperture and extinction corrected from 4"
aperture) (ch2swireflux_corr)
545-563 F19.16 uJy e_FSWIRE2c ?=- Recommended SWIRE ch2 (4.5um) flux error
(aperture and extinction corrected from 4"
aperture) (ch2swirefluxerr_corr)
565-583 F19.14 uJy FSWIRE3c ?=- Recommended SWIRE ch3 (5.8um) flux
(aperture and extinction corrected from 4"
aperture) (ch3swireflux_corr)
585-602 F18.15 uJy e_FSWIRE3c ?=- Recommended SWIRE ch3 (5.8um) flux error
(aperture and extinction corrected from 4"
aperture) (ch3swirefluxerr_corr)
604-624 F21.15 uJy FSWIRE4c ?=- Recommended SWIRE ch4 (8.0um) flux
(aperture and extinction corrected from 4"
aperture) (ch4swireflux_corr)
626-643 F18.15 uJy e_FSWIRE4c ?=- Recommended SWIRE ch4 (8.0um) flux error
(aperture and extinction corrected from 4"
aperture (ch4swirefluxerr_corr)
645-653 A9 --- Det Whether a source has a detection in LoTSS
(Radio) or noT (Non-Radio) (Detection)
655-675 E21.16 10-7W L6um Six-micron Luminosity calculated using
either swire or SDWFS Spitzer (L6um)
677-697 E21.16 10-7W e_L6um Error on six-micron luminosity (L6um_err)
699-719 E21.16 10-7W Lradio ?=- 144 MHz luminosity using Total_Flux
(radio_lum)
721-741 E21.16 10-7W e_Lradio ?=- Error of 144 MHz luminosity
(radiolumerr)
743-763 E21.16 10-7W LOIII OIII luminosity (OIII_lum)
765-785 E21.16 10-7W e_LOIII Error of OIII luminosity (OIIIlumerr)
787-794 F8.4 --- zbest ?=- Source redshift (Best et al.,
2023MNRAS.523.1729B 2023MNRAS.523.1729B) (z_best)
796-801 F6.2 [Msun/yr] SFRcons ?=- Consensus star formation rates from SEDs
(Best et al., 2023MNRAS.523.1729B 2023MNRAS.523.1729B)
(SFR_cons)
803-808 F6.2 [Msun] Masscons ?=- Consensus stellar mass from SEDs
(Best et al., 2023MNRAS.523.1729B 2023MNRAS.523.1729B)
(Mass_cons)
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Acknowledgements:
Emmy Escott, emily.l.escott(at)durham.ac.uk
(End) Patricia Vannier [CDS] 05-Dec-2024