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GOALS-JWST: NIRCam ...
GOALS-JWST: NIRCam and MIRI Imaging of the Circumnuclear Starburst Ring in NGC 7469
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- Bohn, Thomas (author)
- Hiroshima University
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- Inami, H. (author)
- Hiroshima University
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- Diaz-Santos, T. (author)
- European University Cyprus,Idryma Technologias kai Erevnas (FORTH),Foundation for Research and Technology Hellas (FORTH)
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- Armus, Lee (author)
- California Institute of Technology (Caltech)
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- Linden, S. T. (author)
- University of Massachusetts
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- Vivian, U. (author)
- University of California at Irvine (UCI)
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- Surace, J. A. (author)
- California Institute of Technology (Caltech)
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- Larson, K. (author)
- Space Telescope Science Institute (STScI)
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- Evans, Aaron S. (author)
- National Radio Astronomy Observatory,University of Virginia
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- Hoshioka, Shunshi (author)
- Hiroshima University
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- Lai, Thomas (author)
- California Institute of Technology (Caltech)
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- Song, Y. (author)
- University of Virginia,National Radio Astronomy Observatory
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- Mazzarella, J. (author)
- California Institute of Technology (Caltech)
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- Barcos-Munoz, Loreto (author)
- University of Virginia,National Radio Astronomy Observatory
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- Charmandaris, V. (author)
- European University Cyprus,Idryma Technologias kai Erevnas (FORTH),Foundation for Research and Technology Hellas (FORTH),Panepistimio Kritis,University of Crete
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- Howell, Justin (author)
- California Institute of Technology (Caltech)
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- Medling, Anne M. (author)
- University of Toledo
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- Privon, G. (author)
- National Radio Astronomy Observatory,University of Florida
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- Rich, Jeffrey A. (author)
- Carnegie Observatories
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- Stierwalt, S. (author)
- Occidental College
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- Aalto, Susanne, 1964 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Boker, T. (author)
- European Space Agency (ESA)
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- Brown, Michael J.I. (author)
- Monash University
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- Iwasawa, K. (author)
- Universitat de Barcelona,University of Barcelona,Institucio Catalana de Recerca i Estudis Avancats (ICREA),Catalan Institution for Research and Advanced Studies (ICREA)
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- Malkan, M. A. (author)
- University of California
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- van der Werf, Paul P. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- Appleton, P. (author)
- California Institute of Technology (Caltech)
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- Hayward, Christopher C. (author)
- Flatiron Institute
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- Kemper, F. (author)
- Institucio Catalana de Recerca i Estudis Avancats (ICREA),Catalan Institution for Research and Advanced Studies (ICREA),Institut de Ciències de l'Espai (ICE) - CSIC,Institute of Space Sciences (ICE) - CSIC,Institut d'Estudis Espacials de Catalunya (IEEC),Institute of Space Studies of Catalonia (IEEC)
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- Law, David R. (author)
- Space Telescope Science Institute (STScI)
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Marshall, Jason (author)
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- Murphy, Eric J. (author)
- National Radio Astronomy Observatory
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Sanders, David (author)
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(creator_code:org_t)
- 2023-01-13
- 2023
- English.
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In: Astrophysical Journal Letters. - : American Astronomical Society. - 2041-8213 .- 2041-8205. ; 942:2
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https://research.cha... (primary) (free)
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https://research.cha...
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https://doi.org/10.3...
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Abstract
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- We present James Webb Space Telescope (JWST) imaging of NGC 7469 with the Near-Infrared Camera and the Mid-InfraRed Instrument. NGC 7469 is a nearby, z = 0.01627, luminous infrared galaxy that hosts both a Seyfert Type-1.5 nucleus and a circumnuclear starburst ring with a radius of ∼0.5 kpc. The new near-infrared (NIR) JWST imaging reveals 66 star-forming regions, 37 of which were not detected by Hubble Space Telescope (HST) observations. Twenty-eight of the 37 sources have very red NIR colors that indicate obscurations up to A v ∼ 7 and a contribution of at least 25% from hot dust emission to the 4.4 μm band. Their NIR colors are also consistent with young (<5 Myr) stellar populations and more than half of them are coincident with the mid-infrared (MIR) emission peaks. These younger, dusty star-forming regions account for ∼6% and ∼17% of the total 1.5 and 4.4 μm luminosity of the starburst ring, respectively. Thanks to JWST, we find a significant number of young dusty sources that were previously unseen due to dust extinction. The newly identified 28 young sources are a significant increase compared to the number of HST-detected young sources (4-5). This makes the total percentage of the young population rise from ∼15% to 48%. These results illustrate the effectiveness of JWST in identifying and characterizing previously hidden star formation in the densest star-forming environments around active galactic nuclei (AGN).
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Bohn, Thomas
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Inami, H.
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Diaz-Santos, T.
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Armus, Lee
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Linden, S. T.
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Vivian, U.
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show more...
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Surace, J. A.
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Larson, K.
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Evans, Aaron S.
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Hoshioka, Shunsh ...
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Lai, Thomas
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Song, Y.
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Mazzarella, J.
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Barcos-Munoz, Lo ...
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Charmandaris, V.
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Howell, Justin
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Medling, Anne M.
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Privon, G.
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Rich, Jeffrey A.
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Stierwalt, S.
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Aalto, Susanne, ...
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Boker, T.
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Brown, Michael J ...
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Iwasawa, K.
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Malkan, M. A.
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van der Werf, Pa ...
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Appleton, P.
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Hayward, Christo ...
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Kemper, F.
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Law, David R.
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Marshall, Jason
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Murphy, Eric J.
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Sanders, David
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Fusion Plasma an ...
- Articles in the publication
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Astrophysical Jo ...
- By the university
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Chalmers University of Technology