Journal article
Accelerated formation of ultra-massive galaxies in the first billion years
Mengyuan Xiao, Pascal A Oesch, David Elbaz, Longji Bing, Erica J Nelson, Andrea Weibel, Garth D Illingworth, Pieter van Dokkum, Rohan P Naidu, Emanuele Daddi, Rychard J Bouwens, Jorryt Matthee, Stijn Wuyts, John Chisholm, Gabriel Brammer, Mark Dickinson, Benjamin Magnelli, Lucas Leroy, Daniel Schaerer, Thomas Herard-Demanche Show all
NATURE | NATURE PORTFOLIO | Published : 2024
Abstract
Recent James Webb Space Telescope (JWST) observations have revealed an unexpected abundance of massive-galaxy candidates in the early Universe, extending further in redshift and to lower luminosity than what had previously been found by submillimetre surveys1–6. These JWST candidates have been interpreted as challenging the Λ cold dark-matter cosmology (where Λ is the cosmological constant)7–9, but, so far, these studies have mostly relied on only rest-frame ultraviolet data and have lacked spectroscopic confirmation of their redshifts10–16. Here we report a systematic study of 36 massive dust-obscured galaxies with spectroscopic redshifts between 5 and 9 from the JWST FRESCO survey. We find..
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Grants
Awarded by NASA
Awarded by Swiss State Secretariat for Education, Research and Innovation (SERI)
Awarded by Swiss National Science Foundation (SNSF)
Awarded by Danish National Research Foundation
Awarded by JWST
Awarded by NAOJ ALMA Scientific Research
Awarded by Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D)
Awarded by Australian Research Council
Awarded by Spanish Ministerio de Ciencia e Innovacion - Agencia Estatal de Investigacion
Awarded by Generalitat Valenciana
Awarded by BEIS capital funding via STFC capital
Awarded by Durham University and STFC
Funding Acknowledgements
We thank R. Marques-Chaves for discussions. 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 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 programme number 1895. Support for this work was provided by NASA through grant JWST-GO-01895 awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. This work has received funding from the Swiss State Secretariat for Education, Research and Innovation (SERI) under contract number MB22.00072, as well as from the Swiss National Science Foundation (SNSF) through project grant 200020_207349. The Cosmic Dawn Center (DAWN) is funded by the Danish National Research Foundation under grant DNRF140. R.P.N. acknowledges funding from JWST programmes GO-1933 and GO-2279. Support for this work was provided by NASA through the NASA Hubble Fellowship grant HST-HF2-51515.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555. Y.F. acknowledges support from NAOJ ALMA Scientific Research Grant number 2020-16B. Y.Q. acknowledges support from the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013. I.L. acknowledges support by the Australian Research Council through Future Fellowship FT220100798. M. Stefanon acknowledges support from the CIDEGENT/2021/059 grant, from project PID2019-109592GB-I00/AEI/10.13039/501100011033 from the Spanish Ministerio de Ciencia e Innovacion - Agencia Estatal de Investigacion. M. Stefanon also acknowledges the financial support from the MCIN with funding from the European Union NextGenerationEU and Generalitat Valenciana in the call Programa de Planes Complementarios de I+D+i (PRTR 2022) Project (VAL-JPAS), reference ASFAE/2022/025. Cloud-based data processing and file storage for this work is provided by the AWS Cloud Credits for Research programme. This work used the DiRAC@Durham facility managed by the Institute for Computational Cosmology on behalf of the STFC DiRAC HPC Facility (www.dirac.ac.uk). The equipment was funded by BEIS capital funding via STFC capital grants ST/K00042X/1, ST/P002293/1, ST/R002371/1 and ST/S002502/1, Durham University and STFC operations grant ST/R000832/1. DiRAC is part of the National e-Infrastructure.