SCUBADive I: JWST+ALMA Analysis of 289 sub-millimeter galaxies in COSMOS-Web

Jed McKinney, Caitlin M. Casey, Arianna S. Long, Olivia R. Cooper, Sinclaire M. Manning, Maximilien Franco, Hollis Akin, Erini Lambrides, Elaine Gammon, Camila Silva, Fabrizio Gentile, Jorge A. Zavala, Aristeidis Amvrosiadis, Irham Taufik Andika, Malte Brinch, Jaclyn B. Champagne, Nima Chartab, Nicole E. Drakos, Andreas L. Faisst, Seiji FujimotoSteven Gillman, Ghassem Gozaliasl, Thomas R. Greve, Santosh Harish, Christopher C. Hayward, Michaela Hirschmann, Olivier Ilbert, Boris S. Kalita, Jeyhan S. Kartaltepe, Anton M. Koekemoer, Vasily Kokorev, Daizhong Liu, Georgios Magdis, Henry Joy McCracken, Jason Rhodes, Brant E. Robertson, Margherita Talia, Francesco Valentino, Aswin P. Vijayan

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Abstract

JWST has enabled detecting and spatially resolving the heavily dust-attenuated stellar populations of sub-millimeter galaxies, revealing detail that was previously inaccessible. In this work we construct a sample of 289 sub-millimeter galaxies with detailed joint ALMA and JWST constraints in the COSMOS field. Sources are originally selected using the SCUBA-2 instrument and have archival ALMA observations from various programs. Their JWST NIRCam imaging is from COSMOS-Web and PRIMER. We extract multi-wavelength photometry in a manner that leverages the unprecedented near-infrared spatial resolution of JWST, and fit the data with spectral energy distribution models to derive photometric redshifts, stellar masses, star-formation rates and optical attenuation. The sample has an average z=2.6, A_V=2.5, SFR=270 and log(M*)=11.1. There are 81 (30%) galaxies that have no previous optical/near-infrared detections, including 75% of the z>4 sub-sample (n=28). The faintest observed near-infrared sources have the highest redshifts and largest A_V=4. In a preliminary morphology analysis we find that ~10% of our sample exhibit spiral arms and 5% host stellar bars, with one candidate bar found at z>3. Finally, we find that the clustering of JWST galaxies within 10 arcseconds of a sub-mm galaxy is a factor of 2 greater than what is expected based on either random clustering or the distribution of sources around any red galaxy irrespective of a sub-mm detection.
Original languageEnglish
JournalarXiv.org
Publication statusAccepted/In press - 1 Aug 2024
MoE publication typeB1 Non-refereed journal articles

Keywords

  • Astrophysics - Astrophysics of Galaxies

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