COSMOS-Web: Intrinsically Luminous z ≳ 10 Galaxy Candidates Test Early Stellar Mass Assembly
The University of Texas at Austin · University of Copenhagen · +29 more institutions
Abstract
Abstract We report the discovery of 15 exceptionally luminous 10 ≲ z ≲ 14 candidate galaxies discovered in the first 0.28 deg 2 of JWST/NIRCam imaging from the COSMOS-Web survey. These sources span rest-frame UV magnitudes of −20.5 > M UV > −22, and thus constitute the most intrinsically luminous z ≳ 10 candidates identified by JWST to date. Selected via NIRCam imaging, deep ground-based observations corroborate their detection and help significantly constrain their photometric redshifts. We analyze their spectral energy distributions using multiple open-source codes and evaluate the probability of low-redshift solutions; we conclude that 12/15 (80%) are likely genuine z ≳ 10 sources and 3/15 (20%)…
Citation impact
- FWCI
- 34.80
- Percentile
- 100%
- References
- 160
Authors
42- CMCaitlin M. CaseyCorresponding
The University of Texas at Austin
- HBHollis B. Akins
The University of Texas at Austin
- MSMarko Shuntov
University of Copenhagen
- OIO. Ilbert
Centre National de la Recherche Scientifique, Aix-Marseille Université
- LPLouise Paquereau
Centre National de la Recherche Scientifique, Institut d'Astrophysique de Paris, Sorbonne Université
Topics & keywords
- Physics
- Astronomy
- Galaxy
- Astrophysics
- Cosmos (plant)
- Stellar mass
- Galaxy formation and evolution
- Star formation
- Affordable and clean energy
Funding
- NSNational Science FoundationAwards: AST-1910346, 2307006, AST-2108962, 2009577, HST-AR-17043, AST-1752913, HST-AR-17028, 80NSSC22K0827, 1910346, HST-GO-16226, HST-GO-16686, HST-GO-15658, AR-15809, HST-AR-15809, 2108962, CAREER, GO-15902, HST-AR-16159, HST-GO-15902, HST-GO-15901, AST-2009577
- NANational Aeronautics and Space AdministrationAwards: HST-GO-15902, HST-AR-15809, JWST-GO-01727, HST-GO-16686, HST-GO-15901, HST-GO-16226, JWST-GO-1727, HST-AR-17043, NAS5-26555, GO-15902, HST-AR-17028, 80NSSC22K0827, AR-15809, AST-1910346, AST-2108962, HST-GO-15658, AST-1752913, HST-AR-16159
- RCResearch Corporation for Science AdvancementAwards: AR-15809, GO-15902
- UOUniversity of Texas at Austin
- STSpace Telescope Science InstituteAwards: AR-15809, NAS5-26555, HST-GO-16226, HST-AR-16159, HST-GO-15901, GO-15902, 26555, HST-GO-15902, AST-2307006, HST-AR-15809, JWST-GO-01727
- NRNational Research Foundation
- ANAgence Nationale de la RechercheAward: ANR-22-CE31-0007
- DGDanmarks Grundforskningsfond
- CNCentre National d’Etudes Spatiales
- NSNuclear Safety and Security Commission
- ESEuropean Southern ObservatoryAwards: 179.A-2005, 198.A-2003
- SAScience and Technology Facilities CouncilAward: ST/X001040/1