The Astrophysical Journal Letters (Jan 2024)
JWST Observations of Starbursts: Massive Star Clusters in the Central Starburst of M82
- Rebecca C. Levy,
- Alberto D. Bolatto,
- Divakara Mayya,
- Bolivia Cuevas-Otahola,
- Elizabeth Tarantino,
- Martha L. Boyer,
- Leindert A. Boogaard,
- Torsten Böker,
- Serena A. Cronin,
- Daniel A. Dale,
- Keaton Donaghue,
- Kimberly L. Emig,
- Deanne B. Fisher,
- Simon C. O. Glover,
- Rodrigo Herrera-Camus,
- María J. Jiménez-Donaire,
- Ralf S. Klessen,
- Laura Lenkić,
- Adam K. Leroy,
- Ilse De Looze,
- David S. Meier,
- Elisabeth A. C. Mills,
- Juergen Ott,
- Mónica Relaño,
- Sylvain Veilleux,
- Vicente Villanueva,
- Fabian Walter,
- Paul P. van der Werf
Affiliations
- Rebecca C. Levy
- ORCiD
- Steward Observatory, University of Arizona , Tucson, AZ 85721, USA ; [email protected]
- Alberto D. Bolatto
- ORCiD
- Department of Astronomy, University of Maryland , College Park, MD 20742, USA; Joint Space-Science Institute, University of Maryland , College Park, MD 20742, USA
- Divakara Mayya
- ORCiD
- Instituto Nacional de Astrofísica , Óptica y Electrónica, Luis Enrique Erro 1, Tonantzintla, 72840 Puebla, Mexico
- Bolivia Cuevas-Otahola
- ORCiD
- Benemérita Universidad Autónoma de Puebla , Av. San Manuel, 72000 Puebla, Mexico
- Elizabeth Tarantino
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Martha L. Boyer
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Leindert A. Boogaard
- ORCiD
- Max Planck Institut for Astronomy , Konigstuhl 17, 69117 Heidelberg, Germany
- Torsten Böker
- ORCiD
- European Space Agency , c/o STScI, 3700 San Martin Drive, Baltimore, MD 21218, USA
- Serena A. Cronin
- ORCiD
- Department of Astronomy, University of Maryland , College Park, MD 20742, USA
- Daniel A. Dale
- ORCiD
- Department of Physics and Astronomy, University of Wyoming , Laramie, WY 82071, USA
- Keaton Donaghue
- ORCiD
- Department of Physics and Astronomy, University of Kansas , 1251 Wescoe Hall Drive, Lawrence, KS 66045, USA
- Kimberly L. Emig
- ORCiD
- Collège de France , 11 Pl. Marcelin Berthelot, 75231 Paris, France; Observatoire de Paris , 61 avenue de l’Observatoire, 75014 Paris, France
- Deanne B. Fisher
- ORCiD
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology , Hawthorn, VIC 3122, Australia; ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) , Australia
- Simon C. O. Glover
- ORCiD
- Universität Heidelberg, Zentrum für Astronomie, Institut für Theoretische Astrophysik , Albert-Ueberle-Str. 2, D-69120 Heidelberg, Germany
- Rodrigo Herrera-Camus
- ORCiD
- Departamento de Astronomía, Universidad de Concepción , Barrio Universitario, Concepción, Chile
- María J. Jiménez-Donaire
- ORCiD
- Observatorio Astronómico Nacional (IGN) , C/Alfonso XII, 3, E-28014 Madrid, Spain; Centro de Desarrollos Tecnológicos, Observatorio de Yebes (IGN) , 19141 Yebes, Guadalajara, Spain
- Ralf S. Klessen
- ORCiD
- Universität Heidelberg, Zentrum für Astronomie, Institut für Theoretische Astrophysik , Albert-Ueberle-Str. 2, D-69120 Heidelberg, Germany; Universität Heidelberg, Interdisziplinäres Zentrum für Wissenschaftliches Rechnen , Im Neuenheimer Feld 205, D-69120 Heidelberg, Germany
- Laura Lenkić
- ORCiD
- Stratospheric Observatory for Infrared Astronomy, NASA Ames Research Center , Mail Stop 204–14, Moffett Field, CA 94035, USA; Jet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USA
- Adam K. Leroy
- ORCiD
- Department of Astronomy, The Ohio State University , Columbus, OH 43210, USA
- Ilse De Looze
- ORCiD
- Sterrenkundig Observatorium, Ghent University , Krijgslaan 281—S9, B-9000 Gent, Belgium
- David S. Meier
- ORCiD
- New Mexico Institute of Mining and Technology , 801 Leroy Place, Socorro, NM 87801, USA; National Radio Astronomy Observatory , P.O. Box O, 1011 Lopezville Road, Socorro, NM 87801, USA
- Elisabeth A. C. Mills
- ORCiD
- Department of Physics and Astronomy, University of Kansas , 1251 Wescoe Hall Drive, Lawrence, KS 66045, USA
- Juergen Ott
- ORCiD
- National Radio Astronomy Observatory , P.O. Box O, 1011 Lopezville Road, Socorro, NM 87801, USA
- Mónica Relaño
- ORCiD
- Dept. Física Teórica y del Cosmos, Universidad de Granada , 18071, Granada, Spain
- Sylvain Veilleux
- ORCiD
- Department of Astronomy, University of Maryland , College Park, MD 20742, USA; Joint Space-Science Institute, University of Maryland , College Park, MD 20742, USA
- Vicente Villanueva
- ORCiD
- Departamento de Astronomía, Universidad de Concepción , Barrio Universitario, Concepción, Chile
- Fabian Walter
- ORCiD
- Max Planck Institut for Astronomy , Konigstuhl 17, 69117 Heidelberg, Germany
- Paul P. van der Werf
- ORCiD
- Leiden Observatory, Leiden University , P.O. Box 9513, 2300 RA Leiden, The Netherlands
- DOI
- https://doi.org/10.3847/2041-8213/ad7af3
- Journal volume & issue
-
Vol. 973,
no. 2
p. L55
Abstract
We present a near-infrared (NIR) candidate star cluster catalog for the central kiloparsec of M82 based on new JWST NIRCam images. We identify star cluster candidates using the F250M filter, finding 1357 star cluster candidates with stellar masses >10 ^4 M _⊙ . Compared to previous optical catalogs, nearly all (87%) of the candidates we identify are new. The star cluster candidates have a median intrinsic cluster radius of ≈1 pc and stellar masses up to 10 ^6 M _⊙ . By comparing the color–color diagram to dust-free yggdrasil stellar population models, we estimate that the star cluster candidates have A _V ∼ 3−24 mag, corresponding to A _2.5 _μ _m ∼ 0.3−2.1 mag. There is still appreciable dust extinction toward these clusters into the NIR. We measure the stellar masses of the star cluster candidates, assuming ages of 0 and 8 Myr. The slope of the resulting cluster mass function is β = 1.9 ± 0.2, in excellent agreement with studies of star clusters in other galaxies.
Keywords
