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A population of faint, old, and massive quiescent galaxies at [Formula: see text] revealed by JWST NIRSpec Spectroscopy.
Nanayakkara, Themiya; Glazebrook, Karl; Jacobs, Colin; Kawinwanichakij, Lalitwadee; Schreiber, Corentin; Brammer, Gabriel; Esdaile, James; Kacprzak, Glenn G; Labbe, Ivo; Lagos, Claudia; Marchesini, Danilo; Marsan, Z Cemile; Oesch, Pascal A; Papovich, Casey; Remus, Rhea-Silvia; Tran, Kim-Vy H.
Afiliación
  • Nanayakkara T; Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC, 3122, Australia. wnanayakkara@swin.edu.au.
  • Glazebrook K; Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC, 3122, Australia.
  • Jacobs C; Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC, 3122, Australia.
  • Kawinwanichakij L; Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC, 3122, Australia.
  • Schreiber C; IBEX Innovations, Sedgefield, Stockton-on-Tees, TS21 3FF, UK.
  • Brammer G; Cosmic DAWN Center, Niels Bohr Institute, University of Copenhagen, Jagtvej 128, 2200, Copenhagen N, Denmark.
  • Esdaile J; Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC, 3122, Australia.
  • Kacprzak GG; Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC, 3122, Australia.
  • Labbe I; Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC, 3122, Australia.
  • Lagos C; Cosmic DAWN Center, Niels Bohr Institute, University of Copenhagen, Jagtvej 128, 2200, Copenhagen N, Denmark.
  • Marchesini D; ARC Centre for Excellence in All-Sky Astrophysics in 3D, Canberra, Australia.
  • Marsan ZC; International Centre for Radio Astronomy Research, University of Western Australia, 7 Fairway, Crawley, 6009, WA, Australia.
  • Oesch PA; Physics and Astronomy Department, Tufts University, 574 Boston Avenue, Medford, MA, 02155, USA.
  • Papovich C; Department of Physics and Astronomy, York University, 4700 Keele Street, Toronto, ON, M3J 1P3, Canada.
  • Remus RS; Cosmic DAWN Center, Niels Bohr Institute, University of Copenhagen, Jagtvej 128, 2200, Copenhagen N, Denmark.
  • Tran KH; Department of Astronomy, University of Geneva, Chemin Pegasi 51, 1290, Versoix, Switzerland.
Sci Rep ; 14(1): 3724, 2024 Feb 14.
Article en En | MEDLINE | ID: mdl-38355772
ABSTRACT
Here we present a sample of 12 massive quiescent galaxy candidates at [Formula see text] observed with the James Webb Space Telescope (JWST) Near Infrared Spectrograph (NIRSpec). These galaxies were pre-selected from the Hubble Space Telescope imaging and 10 of our sources were unable to be spectroscopically confirmed by ground based spectroscopy. By combining spectroscopic data from NIRSpec with multi-wavelength imaging data from the JWST Near Infrared Camera (NIRCam), we analyse their stellar populations and their formation histories. We find that all of our galaxies classify as quiescent based on the reconstruction of their star formation histories but show a variety of quenching timescales and ages. All our galaxies are massive ([Formula see text] M[Formula see text]), with masses comparable to massive galaxies in the local Universe. We find that the oldest galaxy in our sample formed [Formula see text] M[Formula see text] of mass within the first few hundred million years of the Universe and has been quenched for more than a billion years by the time of observation at [Formula see text] ([Formula see text] billion years after the Big Bang). Our results point to very early formation of massive galaxies requiring a high conversion rate of baryons to stars in the early Universe.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Reino Unido