The Astrophysical Journal (Jan 2025)
EPOCHS. I. The Discovery and Star-forming Properties of Galaxies in the Epoch of Reionization at 6.5 < z < 18 with PEARLS and Public JWST Data
- Christopher J. Conselice,
- Nathan Adams,
- Thomas Harvey,
- Duncan Austin,
- Leonardo Ferreira,
- Katherine Ormerod,
- Qiao Duan,
- James Trussler,
- Qiong Li,
- Ignas Juodžbalis,
- Lewi Westcott,
- Honor Harris,
- Louise T. C. Seeyave,
- Asa F. L. Bluck,
- Rogier A. Windhorst,
- Rachana Bhatawdekar,
- Dan Coe,
- Seth H. Cohen,
- Cheng Cheng,
- Simon P. Driver,
- Brenda Frye,
- Lukas J. Furtak,
- Norman A. Grogin,
- Nimish P. Hathi,
- Benne W. Holwerda,
- Rolf A. Jansen,
- Anton M. Koekemoer,
- Madeline A. Marshall,
- Mario Nonino,
- Aaron Robotham,
- Jake Summers,
- Stephen M. Wilkins,
- Christopher N. A. Willmer,
- Haojing Yan,
- Adi Zitrin
Affiliations
- Christopher J. Conselice
- ORCiD
- Jodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UK ; [email protected]
- Nathan Adams
- ORCiD
- Jodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UK ; [email protected]
- Thomas Harvey
- ORCiD
- Jodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UK ; [email protected]
- Duncan Austin
- ORCiD
- Jodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UK ; [email protected]
- Leonardo Ferreira
- Department of Physics & Astronomy, University of Victoria , Finnerty Road, Victoria, British Columbia, V8P 1A1, Canada
- Katherine Ormerod
- ORCiD
- Jodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UK ; [email protected]; Astrophysics Research Institute, Liverpool John Moores University , 146 Brownlow Hill, Liverpool, L3 5RF, UK
- Qiao Duan
- ORCiD
- Jodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UK ; [email protected]
- James Trussler
- ORCiD
- Jodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UK ; [email protected]
- Qiong Li
- ORCiD
- Jodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UK ; [email protected]
- Ignas Juodžbalis
- ORCiD
- Jodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UK ; [email protected]; Kavli Institute for Cosmology, University of Cambridge , Madingley Road, Cambridge, CB3 OHA, UK; Cavendish Laboratory - Astrophysics Group, University of Cambridge , 19 JJ Thomson Avenue, Cambridge, CB3 OHE, UK
- Lewi Westcott
- ORCiD
- Jodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UK ; [email protected]
- Honor Harris
- ORCiD
- Jodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UK ; [email protected]
- Louise T. C. Seeyave
- ORCiD
- Astronomy Centre, University of Sussex , Falmer, Brighton BN1 9QH, UK
- Asa F. L. Bluck
- ORCiD
- Stocker AstroScience Center, Dept. of Physics, Florida International University , 11200 S.W. 8th Street, Miami, FL 33199, USA
- Rogier A. Windhorst
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287-1404, USA
- Rachana Bhatawdekar
- ORCiD
- European Space Agency (ESA), European Space Astronomy Centre (ESAC) , Camino Bajo del Castillo s/n, 28692 Villanueva de la Cañada, Madrid, Spain
- Dan Coe
- ORCiD
- AURA for the European Space Agency (ESA), Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Seth H. Cohen
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287-1404, USA
- Cheng Cheng
- ORCiD
- Chinese Academy of Sciences South America Center for Astronomy , National Astronomical Observatories, CAS, Beijing 100101, People’s Republic of China; 2 CAS Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People’s Republic of China
- Simon P. Driver
- ORCiD
- International Centre for Radio Astronomy Research (ICRAR) and the International Space Centre (ISC), The University of Western Australia , M468, 35 Stirling Highway, Crawley, WA 6009, Australia
- Brenda Frye
- ORCiD
- University of Arizona , Department of Astronomy/Steward Observatory, 933 N Cherry Avenue, Tucson, AZ85721, USA
- Lukas J. Furtak
- ORCiD
- Department of Physics, Ben-Gurion University of the Negev , P.O. Box 653, Be’er-Sheva 84105, Israel
- Norman A. Grogin
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Nimish P. Hathi
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Benne W. Holwerda
- ORCiD
- Department of Physics and Astronomy, University of Louisville , 102 Natural Sciences Building, Louisville, KY 40292, USA
- Rolf A. Jansen
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287-1404, USA
- Anton M. Koekemoer
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Madeline A. Marshall
- ORCiD
- National Research Council of Canada , Herzberg Astronomy & Astrophysics Research Centre, 5071 West Saanich Road, Victoria, BC V9E 2E7, Canada; & ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), Australia
- Mario Nonino
- ORCiD
- INAF-Osservatorio Astronomico di Trieste , Via Bazzoni 2, I-34124 Trieste, Italy
- Aaron Robotham
- ORCiD
- International Centre for Radio Astronomy Research (ICRAR) and the International Space Centre (ISC), The University of Western Australia , M468, 35 Stirling Highway, Crawley, WA 6009, Australia
- Jake Summers
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287-1404, USA
- Stephen M. Wilkins
- ORCiD
- Astronomy Centre, Department of Physics and Astronomy, University of Sussex , Brighton, BN1 9QH, UK
- Christopher N. A. Willmer
- ORCiD
- Steward Observatory, University of Arizona , 933 N Cherry Avenue, Tucson, AZ, 85721-0009, USA
- Haojing Yan
- ORCiD
- Department of Physics and Astronomy, University of Missouri , Columbia, MO 65211, USA
- Adi Zitrin
- ORCiD
- Department of Physics, Ben-Gurion University of the Negev , P.O. Box 653, Be’er-Sheva 84105, Israel
- DOI
- https://doi.org/10.3847/1538-4357/ada608
- Journal volume & issue
-
Vol. 983,
no. 1
p. 30
Abstract
We present in this paper the discovery, properties, and a catalog of 1165 high-redshift 6.5 6.5 galaxies, including their redshift distributions, UV absolute magnitudes, and star formation rates. Our study of these young galaxies reveals a wide range of stellar population properties as seen in their colors and SED fits, which we compare to stellar population models, indicating a range of star formation histories (SFHs), dust, active galactic nuceli, and/or nebular emission. We find that a strong trend exists between stellar mass and ( U − V ) color, as well as the existence of the “main-sequence” of star formation for galaxies as early as z ∼ 12. This indicates that stellar mass, or an underlying variable correlating with stellar mass, is driving galaxy formation, in agreement with simulation predictions. We also discover ultra-high-redshift candidates at z > 12 in our sample and describe their properties. Finally, we note a significant observed excess of galaxies compared to models at z > 12, revealing a tension between predictions and our observations.
Keywords
