GATOS XV: A JWST/MIRI survey of extended circumnuclear dust emission in nearby Seyfert galaxies
Abstract
The subarcsecond angular resolution and stable background of JWST has given us the first high-fidelity images of the arcsecond-scale environment around Active Galactic Nuclei (AGNs) in the nearby Universe. With mid-infrared (MIR) surface brightness sensitivities that are much deeper than the best ground-based instruments, the Mid-InfraRed Instrument imager (MIRIM) now allows us to understand the structure and thermal properties of dust using information over wavelengths of $5−25$ μm, almost all of the MIR range. We present a Cycle 1 JWST MIRIM survey of Seyfert galaxies with the express aim of characterising AGN-heated dust in the central few 100 pcs, and searching for signatures of dust-laden nuclear outflows. This paper outlines the motivation behind the programme, the data reduction and analysis techniques used to isolate the nuclear and extended emission, and a comparison of the observed MIR structures with those seen in other phases (stars, ionised and molecular gas, absorbing dust). In concert with earlier studies that used these data, we conclude that resolved AGN-heated dust is widespread in the Seyfert population, extending out to a few hundred pcs from the nucleus and often displaying a higher surface-brightness compared to the more widespread star-forming dusty circumnuclear disk. Even after accounting for contamination from emission lines in the MIRI filters, we find strong spatial correlations between MIR dust emission and the AGN-ionised gas in the narrow-line region (NLR).
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BibTeX
@misc{rosario2026gatos,
title = {{GATOS XV: A JWST/MIRI survey of extended circumnuclear dust emission in nearby Seyfert galaxies}},
author = {David J. Rosario and Houda Haidar and Steph Campbell and John Schneider and Chris Packham and Nancy A. Levenson and Almudena Alonso-Herrero and Richard I. Davies and Dan Delaney and Santiago García-Burillo and Erin K. S. Hicks and Sebastian F. Hönig and Mason Leist and Enrique Lopez-Rodriguez and Miguel Pereira-Santaella and Anelise Audibert and Enrica Bellocchi and Françoise Combes and Ismael García-Bernete and Peter Boorman and Andrew J. Bunker and Luis Colina and Tanio Diaz Santos and Fergus R. Donnan and Poshak Gandhi and Omaira González-Martín and Laura Hermosa Muñoz and Alvaro Labiano and Cristina Ramos Almeida and Claudio Ricci and Rogemar A. Riffel and Dimitra Rigopoulou and Daniel Rouan and Marko Stalevski and Lulu Zhang},
howpublished = {arXiv},
year = {2026},
month = aug,
doi = {10.48550/arxiv.2606.14477},
eprint = {2606.14477},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2606.14477},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - GATOS XV: A JWST/MIRI survey of extended circumnuclear dust emission in nearby Seyfert galaxies
AU - David J. Rosario
AU - Houda Haidar
AU - Steph Campbell
AU - John Schneider
AU - Chris Packham
AU - Nancy A. Levenson
AU - Almudena Alonso-Herrero
AU - Richard I. Davies
AU - Dan Delaney
AU - Santiago García-Burillo
AU - Erin K. S. Hicks
AU - Sebastian F. Hönig
AU - Mason Leist
AU - Enrique Lopez-Rodriguez
AU - Miguel Pereira-Santaella
AU - Anelise Audibert
AU - Enrica Bellocchi
AU - Françoise Combes
AU - Ismael García-Bernete
AU - Peter Boorman
AU - Andrew J. Bunker
AU - Luis Colina
AU - Tanio Diaz Santos
AU - Fergus R. Donnan
AU - Poshak Gandhi
AU - Omaira González-Martín
AU - Laura Hermosa Muñoz
AU - Alvaro Labiano
AU - Cristina Ramos Almeida
AU - Claudio Ricci
AU - Rogemar A. Riffel
AU - Dimitra Rigopoulou
AU - Daniel Rouan
AU - Marko Stalevski
AU - Lulu Zhang
PY - 2026
DA - 2026/08/28
PB - arXiv
DO - 10.48550/arxiv.2606.14477
UR - https://arxiv.org/abs/2606.14477
AB - The subarcsecond angular resolution and stable background of JWST has given us the first high-fidelity images of the arcsecond-scale environment around Active Galactic Nuclei (AGNs) in the nearby Universe. With mid-infrared (MIR) surface brightness sensitivities that are much deeper than the best ground-based instruments, the Mid-InfraRed Instrument imager (MIRIM) now allows us to understand the structure and thermal properties of dust using information over wavelengths of $5−25$ μm, almost all of the MIR range. We present a Cycle 1 JWST MIRIM survey of Seyfert galaxies with the express aim of characterising AGN-heated dust in the central few 100 pcs, and searching for signatures of dust-laden nuclear outflows. This paper outlines the motivation behind the programme, the data reduction and analysis techniques used to isolate the nuclear and extended emission, and a comparison of the observed MIR structures with those seen in other phases (stars, ionised and molecular gas, absorbing dust). In concert with earlier studies that used these data, we conclude that resolved AGN-heated dust is widespread in the Seyfert population, extending out to a few hundred pcs from the nucleus and often displaying a higher surface-brightness compared to the more widespread star-forming dusty circumnuclear disk. Even after accounting for contamination from emission lines in the MIRI filters, we find strong spatial correlations between MIR dust emission and the AGN-ionised gas in the narrow-line region (NLR).
ER -