Kavli Affiliate: Claudio Ricci
| First 5 Authors: Enrique Lopez-Rodriguez, Enrique Lopez-Rodriguez, , ,
| Summary:
The polar mid-infrared (MIR) emission detected from tens to hundreds of
parsecs in some active galactic nuclei (AGN) has been associated with dusty
winds driven away by radiation pressure. However, the physical characterization
of this extended polar emission remains uncertain. Here we combine $10-21mu$m
JWST/MIRI imaging observations with $7-25 mu$m MRS integral field
spectroscopic observations of 6 nearby, $barD=35.4pm4.6$~Mpc, AGN from the
GATOS Survey to quantify the nature of the extended MIR emission at $sim75$ pc
resolution at $21~mu$m. These AGN have similar bolometric luminosities,
$log_10(barL_rmbol~[rmerg,s^-1])=44.0pm0.3$, span a wide
range of optical outflow rates, $dotM=0.003-0.21$ M$_odot$ yr$^-1$,
column densities, $log_10(N_H^X-ray [cm^-2])=22.2-24.3$, and Eddington
ratios, $lambda_rmEdd=0.005-0.06$. We find a poor correlation between the
line-only and continuum-only images, indicating that the extended MIR continuum
emission is spatially uncorrelated with the warm outflows associated with
narrow emission lines in the $10-15,mu$m wavelength range. The $75-450$~pc
continuum emission has constant dust temperature, $T_rmd=132^+7_-7$ K,
and mass, $M_rmd=728^+29_-27$ M$_odot$. Using the conditions of
energy balance between radiation pressure and gravity, we find that our AGN
sample is in the gravitationally bounded regime, consistent with the lack of
detection of dusty winds in our observations. At $10~mu$m, the level of line
emission contribution across the NLR is correlated with the outflow kinetic
energy and mass outflow rates. We find no correlation with the AGN properties.
These results indicate that the radio jet may be triggering the gas outflow and
line emission, while the extended dust emission is distributed in molecular
clouds and/or shocked regions across the narrow line region.
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