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Search: WFRF:(Inami H.) > (2023) > GOALS-JWST: Reveali...

  • Linden, S. T.University of Massachusetts (author)

GOALS-JWST: Revealing the Buried Star Clusters in the Luminous Infrared Galaxy VV 114

  • Article/chapterEnglish2023

Publisher, publication year, extent ...

  • 2023-02-22
  • American Astronomical Society,2023
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:f07b8313-c931-4ee4-b4b7-753d96c70691
  • https://doi.org/10.3847/2041-8213/acb335DOI
  • https://research.chalmers.se/publication/534830URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • We present the results of a James Webb Space Telescope NIRCam investigation into the young massive star cluster (YMC) population in the luminous infrared galaxy VV 114. We identify 374 compact YMC candidates with signal-to-noise ratios ≥ 3, 5, and 5 at F150W, F200W, and F356W, respectively. A direct comparison with our HST cluster catalog reveals that ∼20% of these sources are undetected at optical wavelengths. Based on yggdrasil stellar population models, we identify 17 YMC candidates in our JWST imaging alone with F150W - F200W and F200W - F356W colors suggesting they are all very young, dusty (A V = 5-15), and massive (105.8 < M ⊙ < 106.1). The discovery of these “hidden” sources, many of which are found in the “overlap” region between the two nuclei, quadruples the number of t < 3 Myr clusters and nearly doubles the number of t < 6 Myr clusters detected in VV 114. Now extending the cluster age distribution ( dN / d τ ∝ τ γ ) to the youngest ages, we find a slope of γ = −1.30 ± 0.39 for 106 < τ(yr) < 107, which is consistent with the previously determined value from 107 < τ(yr) < 108.5, and confirms that VV 114 has a steep age distribution slope for all massive star clusters across the entire range of cluster ages observed. Finally, the consistency between our JWST- and HST-derived age distribution slopes indicates that the balance between cluster formation and destruction has not been significantly altered in VV 114 over the last 0.5 Gyr.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Evans, Aaron S.National Radio Astronomy Observatory,University of Virginia (author)
  • Armus, LeeCalifornia Institute of Technology (Caltech) (author)
  • Rich, Jeffrey A.Carnegie Observatories (author)
  • Larson, K.Space Telescope Science Institute (STScI) (author)
  • Lai, ThomasCalifornia Institute of Technology (Caltech) (author)
  • Privon, G.University of Florida,National Radio Astronomy Observatory (author)
  • Vivian, U.University of California at Irvine (UCI) (author)
  • Inami, H.Hiroshima University (author)
  • Bohn, ThomasHiroshima University (author)
  • Song, Y.University of Virginia,National Radio Astronomy Observatory (author)
  • Barcos-Munoz, LoretoUniversity of Virginia,National Radio Astronomy Observatory (author)
  • Charmandaris, V.Idryma Technologias kai Erevnas (FORTH),Foundation for Research and Technology Hellas (FORTH),Panepistimio Kritis,University of Crete,European University Cyprus (author)
  • Medling, Anne M.University of Toledo (author)
  • Stierwalt, S.Occidental College (author)
  • Diaz-Santos, T.European University Cyprus,Idryma Technologias kai Erevnas (FORTH),Foundation for Research and Technology Hellas (FORTH) (author)
  • Boker, T.European Space Agency (ESA) (author)
  • van der Werf, Paul P.Universiteit Leiden (UL),Leiden University (UL) (author)
  • Aalto, Susanne,1964Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)saalto (author)
  • Appleton, P.California Institute of Technology (Caltech) (author)
  • Brown, Michael J.I.Monash University (author)
  • Hayward, Christopher C.Flatiron Institute (author)
  • Howell, JustinCalifornia Institute of Technology (Caltech) (author)
  • Iwasawa, K.Universitat de Barcelona,University of Barcelona,Institucio Catalana de Recerca i Estudis Avancats (ICREA),Catalan Institution for Research and Advanced Studies (ICREA) (author)
  • Kemper, F.Institut d'Estudis Espacials de Catalunya (IEEC),Institute of Space Studies of Catalonia (IEEC),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 (author)
  • Frayer, D.Green Bank Observatory (author)
  • Law, David R.Space Telescope Science Institute (STScI) (author)
  • Malkan, M. A.University of California at Los Angeles (UCLA) (author)
  • Marshall, Jason (author)
  • Mazzarella, J.California Institute of Technology (Caltech) (author)
  • Murphy, Eric J.National Radio Astronomy Observatory (author)
  • Sanders, DavidUniversity of Hawaii (author)
  • Surace, J. A.California Institute of Technology (Caltech) (author)
  • University of MassachusettsNational Radio Astronomy Observatory (creator_code:org_t)

Related titles

  • In:Astrophysical Journal Letters: American Astronomical Society944:22041-82132041-8205

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