U, Vivian and Lai, Thomas and Bianchin, Marina and Remigio, Raymond P. and Armus, Lee and Larson, Kirsten L. and Díaz-Santos, Tanio and Evans, Aaron and Stierwalt, Sabrina and Law, David R. and Malkan, Matthew A. and Linden, Sean and Song, Yiqing and van der Werf, Paul P. and Gao, Tianmu and Privon, George C. and Medling, Anne M. and Barcos-Muñoz, Loreto and Hayward, Christopher C. and Inami, Hanae and Rich, Jeff and Aalto, Susanne and Appleton, Philip and Bohn, Thomas and Böker, Torsten and Brown, Michael J. I. and Charmandaris, Vassilis and Finnerty, Luke and Howell, Justin and Iwasawa, Kazushi and Kemper, Francisca and Marshall, Jason and Mazzarella, Joseph M. and McKinney, Jed and Muller-Sanchez, Francisco and Murphy, Eric J. and Sanders, David and Surace, Jason (2022) GOALS-JWST: Resolving the Circumnuclear Gas Dynamics in NGC 7469 in the Mid-infrared. Astrophysical Journal Letters, 940 (1). Art. No. L5. ISSN 2041-8205. doi:10.3847/2041-8213/ac961c. https://resolver.caltech.edu/CaltechAUTHORS:20221201-39196300.5
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Abstract
The nearby, luminous infrared galaxy NGC 7469 hosts a Seyfert nucleus with a circumnuclear star-forming ring and is thus the ideal local laboratory for investigating the starburst–AGN (active galactic nucleus) connection in detail. We present integral-field observations of the central 1.3 kpc region in NGC 7469 obtained with the JWST Mid-InfraRed Instrument. Molecular and ionized gas distributions and kinematics at a resolution of ∼100 pc over the 4.9–7.6 μm region are examined to study the gas dynamics influenced by the central AGN. The low-ionization [Fe ɪɪ] λ5.34 μm and [Ar ɪɪ] λ6.99 μm lines are bright on the nucleus and in the starburst ring, as opposed to H₂ S(5) λ6.91 μm, which is strongly peaked at the center and surrounding ISM. The high-ionization [Mg v] line is resolved and shows a broad, blueshifted component associated with the outflow. It has a nearly face-on geometry that is strongly peaked on the nucleus, where it reaches a maximum velocity of −650 km s⁻¹, and extends about 400 pc to the east. Regions of enhanced velocity dispersion in H₂ and [Fe ɪɪ] ∼ 180 pc from the AGN that also show high L(H₂)/L(PAH) and L([Fe ɪɪ])/L(Pfα) ratios to the W and N of the nucleus pinpoint regions where the ionized outflow is depositing energy, via shocks, into the dense interstellar medium between the nucleus and the starburst ring. These resolved mid-infrared observations of the nuclear gas dynamics demonstrate the power of JWST and its high-sensitivity integral-field spectroscopic capability to resolve feedback processes around supermassive black holes in the dusty cores of nearby luminous infrared galaxies.
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| Additional Information: | We thank Jim Braatz, Patrick Ogle, Andreea Petric, and the anonymous reviewer for suggestions that significantly improved the paper. This work is based on observations made with the NASA/ESA/CSA JWST. The research was supported by NASA grant JWST-ERS-01328. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program #1328 and can be accessed via 10.17909/0fe2-cf33. V.U acknowledges funding support from NASA Astrophysics Data Analysis Program (ADAP) grant 80NSSC20K0450. The Flatiron Institute is supported by the Simons Foundation. H.I. and T.B. acknowledge support from JSPS KAKENHI grant No. JP21H01129 and the Ito Foundation for Promotion of Science. A.M.M. acknowledges support from the National Science Foundation under grant No. 2009416. A.S.E. and S.L. acknowledge support from NASA grant HST-GO15472. Y.S. was funded in part by the NSF through the Grote Reber Fellowship Program administered by Associated Universities, Inc./National Radio Astronomy Observatory. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. S.A. gratefully acknowledges support from an ERC Advanced grant 789410, from the Swedish Research Council and from the Knut and Alice Wallenberg (KAW) Foundation. K.I. acknowledges support by the Spanish MCIN under grant PID2019-105510GB-C33/AEI/10.13039/501100011033. F.M-S. acknowledges support from NASA through ADAP award 80NSSC19K1096. Finally, this research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. Facility: JWST (NIRCam and MIRI) - . Software: astropy (Astropy Collaboration et al. 2013, 2018), Cosmology calculator (Wright 2006), JWST Science Calibration Pipeline (Bushouse et al. 2022), ifscube (Ruschel-Dutra & Dall'Agnol De Oliveira 2020; Ruschel-Dutra et al. 2021), BADASS (Sexton et al. 2021), CAFE (Marshall et al. 2007, Díaz-Santos et al. 2022, in preparation), JDAVis (Lim et al. 2022), PAfit (Krajnovic et al. 2006), pymccorelation (Curran2014; Privon et al. 2020). | ||||||||||||||||||||||||||||||
| Group: | Infrared Processing and Analysis Center (IPAC) | ||||||||||||||||||||||||||||||
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| Issue or Number: | 1 | ||||||||||||||||||||||||||||||
| DOI: | 10.3847/2041-8213/ac961c | ||||||||||||||||||||||||||||||
| Record Number: | CaltechAUTHORS:20221201-39196300.5 | ||||||||||||||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20221201-39196300.5 | ||||||||||||||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||||||||||||
| ID Code: | 118195 | ||||||||||||||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||||||||||||||
| Deposited By: | Research Services Depository | ||||||||||||||||||||||||||||||
| Deposited On: | 04 Jan 2023 17:25 | ||||||||||||||||||||||||||||||
| Last Modified: | 04 Jan 2023 17:25 |
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