@article{10902/31355,
year = {2023},
url = {https://hdl.handle.net/10902/31355},
abstract = {We present a multiwavelength analysis using the Submillimeter Array (SMA), James Clerk Maxwell Telescope,
NOEMA, JWST, the Hubble Space Telescope (HST), and the Spitzer Space Telescope of two dusty strongly star forming galaxies, 850.1 and 850.2, seen through the massive cluster lens A 1489. These SMA-located sources both lie at z = 4.26 and have bright dust continuum emission, but 850.2 is a UV-detected Lyman-break galaxy, while 850.1 is undetected at ? 2 ?m, even with deep JWST/NIRCam observations. We investigate their stellar, interstellar medium, and dynamical properties, including a pixel-level spectral energy distribution analysis to derive subkiloparsec-resolution stellar-mass and AV maps. We find that 850.1 is one of the most massive and highly obscured, AV ? 5, galaxies known at z > 4 with M* ?1011.8 Me (likely forming at z > 6), and 850.2 is one of the least massive and least obscured, AV ? 1, members of the z > 4 dusty star-forming population. The diversity of these two dust-mass-selected galaxies illustrates the incompleteness of galaxy surveys at z ? 3?4 based on imaging at ? 2 ?m, the longest wavelengths feasible from HST or the ground. The resolved mass map of 850.1 shows a compact stellar-mass distribution, Remass ?1 kpc, but its expected evolution means that it matches both the properties of massive, quiescent galaxies at z ? 1.5 and ultramassive early-type galaxies at z ? 0. We suggest that 850.1 is the central galaxy of a group in which 850.2 is a satellite that will likely merge in the near future. The stellar morphology of 850.1 shows arms and a linear bar feature that we link to the active dynamical environment it resides within.},
organization = {We thank the referee for providing helpful comments that improved this paper. We also thank Harold Pena for his help with the JCMT observations and reduction, Glen Petitpas for help with SMA and Caitlin Casey, T.C. Chen, Rob Ivison, and Anna Puglisi for valuable comments and discussions. All of the Durham coauthors acknowledge STFC through grant Nos. ST/T000244/1 and ST/X001075/1. R.A.W., S.H.C., and R.A.J. acknowledge support from NASA JWST Interdisciplinary Scientist grants NAG5-12460, NNX14AN10G, and 80NSSC18K0200 from GSFC. A.Z. acknowledges support by the Ministry of Science & Technology, Israel, and by grant No. 2020750 from the United States Israel Binational Science Foundation (BSF) and grant No. 2109066 from the United States National Science Foundation (NSF). C.C. is supported by the National Natural Science Foundation of China, Nos. 11803044, 11933003, and 12173045. This work is sponsored (in part) by the Chinese Academy of Sciences (CAS), through a grant to the CAS South America Center for Astronomy (CASSACA). We acknowledge the science research grants from the China Manned Space Project No. CMS-CSST-2021-A05. C.J.C. acknowledges support from the European Research Council (ERC) Advanced Investigator Grant EPOCHS (788113). M.A.M. acknowledges the support from a National Research Council of Canada Plaskett Fellowship, and the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project No. CE17010001. C.N.A.W. acknowledges funding from the JWST/NIRCam contract NASS-0215 to the University of Arizona. J.M.D. acknowledges support from PGC2018-101814-B-100. The James Clerk Maxwell Telescope is operated by the East Asian Observatory on behalf of The National Astronomical Observatory of Japan; Academia Sinica Institute of Astronomy and Astrophysics; the Korea Astronomy and Space Science Institute; the National Astronomical Research Institute of Thailand; Center for Astronomical Mega-Science (as well as the National Key R&D Program of China with No. 2017YFA0402700). Additional funding support is provided by the Science and Technology Facilities Council of the United Kingdom and participating universities and organizations in the United Kingdom and Canada. Additional funds for the construction of SCUBA-2 were provided by the Canada Foundation for Innovation. The data used in this project came from programs M23AP006 and M15AI29. The Submillimeter Array is a joint project between the Smithsonian Astrophysical Observatory and the Academia Sinica Institute of Astronomy and Astro physics and is funded by the Smithsonian Institution and the Academia Sinica. This work is based on observations carried out under project No. S22CX with the IRAM NOEMA Interferometer. IRAM is supported by INSU/CNRS (France), MPG (Germany), and IGN (Spain). This work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes (MAST) 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 JWST program 1176. This research is based on observations made with the NASA/ESA Hubble Space Telescope obtained from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 526555. These observations are associated with program 15959. This work is based in part on archival data obtained with the Spitzer Space Telescope, which was operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA. This research has made use of Canadian Astronomy Data Centre (CADC), NASA’s Astrophysics Data System (ADS) and the NASA Extragalactic Database (NED). We recognize that Maunakea is a culturally important site for the indigenous Hawaiian people; we are privileged to study the cosmos from its summit. We also acknowledge the indigenous peoples of Arizona, including the Akimel O’odham (Pima) and Pee Posh (Maricopa) Indian Communities, whose care and keeping of the land has enabled us to be at ASU’s Tempe campus in the Salt River Valley, where much of our work was conducted.},
publisher = {Institute of Physics Publishing},
publisher = {Astrophysical Journal, 2023, 958(1), 36},
title = {Hidden Giants in JWST''s PEARLS: An Ultramassive z = 4.26 Submillimeter Galaxy that Is Invisible to HST},
author = {Smail, Ian and Dudzeviciute, Ugné and Gurwell, Mark and Fazio, Giovanni G. and Willner, S. P. and Swinbank, A. M. and Arumugam, Vinodiran and Summers, Jake and Cohen, Seth H. and Jansen, Rolf A. and Windhorst, Rogier A. and Meena, Ashish and Zitrin, Adi and Keel, William C. and Cheng, Cheng and Coe, Dan and Conselice, Christopher J. and D'Silva, Jordan C. J. and Driver, Simon P. and Diego Rodríguez, José María},
}