GOALS-JWST: NIRCam and MIRI Imaging of the Circumnuclear Starburst Ring in NGC 7469

• Published in: arXiv.org 2022-12
• Main Authors: Bohn, Thomas, Inami, Hanae, Diaz-Santos, Tanio, Armus, Lee, Linden, Sean T, Vivian, U, Surace, Jason, Larson, Kirsten L, Evans, Aaron S, Hoshioka, Shunshi, Lai, Thomas, Song, Yiqing, Mazzarella, Joseph M, Barcos-Munoz, Loreto, Charmandaris, Vassilis, Howell, Justin H, Medling, Anne M, Privon, George C, Rich, Jeffrey A, Stierwalt, Sabrina, Aalto, Susanne, Boker, Torsten, Brown, Michael J I, Iwasawa, Kazushi, Malkan, Matthew A, Paul P van der Werf, Appleton, Philip, Hayward, Christopher C, Kemper, Francisca, Law, David, Marshall, Jason, Murphy, Eric J, Sanders, David
• Format: Article
• Language: English
• Subjects: Active galactic nuclei; Emission; Infrared astronomy; Infrared cameras; Infrared imaging; Infrared instruments; James Webb Space Telescope; Luminosity; Near infrared radiation; Seyfert galaxies; Space telescopes; Star & galaxy formation; Star formation; Starbursts; Stellar populations
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.2209.04466

We present James Webb Space Telescope (JWST) imaging of NGC 7469 with the Near-Infrared Camera (NIRCam) and the Mid-InfraRed Instrument (MIRI). NGC 7469 is a nearby, \(z=0.01627\), luminous infrared galaxy (LIRG) that hosts both a Seyfert Type-1.5 nucleus and a circumnuclear starburst ring with a radius of \(\sim\)0.5 kpc. The new near-infrared (NIR) JWST imaging reveals 66 star-forming regions, 37 of which were not detected by HST observations. Twenty-eight of the 37 sources have very red NIR colors that indicate obscurations up to A\(_{\rm{v}}\sim7\) and a contribution of at least 25\(\%\) from hot dust emission to the 4.4\(\mu\)m band. Their NIR colors are also consistent with young (\(