TY - JOUR
T1 - EPOCHS. II. The Ultraviolet Luminosity Function from 7.5 < z < 13.5 Using 180 arcmin2 of Deep, Blank Fields from the PEARLS Survey and Public JWST Data
AU - Adams, Nathan J.
AU - Conselice, Christopher J.
AU - Austin, Duncan
AU - Harvey, Thomas
AU - Ferreira, Leonardo
AU - Trussler, James
AU - Juodžbalis, Ignas
AU - Li, Qiong
AU - Windhorst, Rogier
AU - Cohen, Seth H.
AU - Jansen, Rolf A.
AU - Summers, Jake
AU - Tompkins, Scott
AU - Driver, Simon P.
AU - Robotham, Aaron
AU - D’Silva, Jordan C.J.
AU - Yan, Haojing
AU - Coe, Dan
AU - Frye, Brenda
AU - Grogin, Norman A.
AU - Koekemoer, Anton M.
AU - Marshall, Madeline A.
AU - Pirzkal, Nor
AU - Ryan, Russell E.
AU - Maksym, W. Peter
AU - Rutkowski, Michael J.
AU - Willmer, Christopher N.A.
AU - Hammel, Heidi B.
AU - Nonino, Mario
AU - Bhatawdekar, Rachana
AU - Wilkins, Stephen M.
AU - Bradley, Larry D.
AU - Broadhurst, Tom
AU - Cheng, Cheng
AU - Dole, Hervé
AU - Hathi, Nimish P.
AU - Zitrin, Adi
N1 - Publisher Copyright: © 2024. The Author(s). Published by the American Astronomical Society.
PY - 2024/4/1
Y1 - 2024/4/1
N2 - We present an analysis of the ultraviolet luminosity function (UV LF) and star formation rate density of distant galaxies (7.5 < z < 13.5) in the “blank” fields of the Prime Extragalactic Areas for Reionization and Lensing Science (PEARLS) survey combined with Early Release Science data from the CEERS, GLASS, and NGDEEP surveys/fields and the first data release of JADES. We use strict quality cuts on EAZY photometric redshifts to obtain a reliable selection and characterization of high-redshift (z > 6.5) galaxies from a consistently processed set of deep, near-infrared imaging. Within an area of 180 arcmin2, we identify 1046 candidate galaxies at redshifts z > 6.5 and we use this sample to study the UV LF in four redshift bins between 7.5 < z < 13.5. The measured number density of galaxies at z = 8 and z = 9 matches those of past observations undertaken by the Hubble Space Telescope (HST). Our z = 10.5 measurements lie between early James Webb Space Telescope (JWST) results and past HST results, indicating cosmic variance may be the cause of previous high density measurements. However, the number densities of UV-luminous galaxies at z = 12.5 are high compared to predictions from simulations. When examining the star formation rate density of galaxies at this period, our observations are still largely consistent with a constant star formation efficiency, are slightly lower than previous early estimations using JWST, and support galaxy driven reionization at z ≤ 8.
AB - We present an analysis of the ultraviolet luminosity function (UV LF) and star formation rate density of distant galaxies (7.5 < z < 13.5) in the “blank” fields of the Prime Extragalactic Areas for Reionization and Lensing Science (PEARLS) survey combined with Early Release Science data from the CEERS, GLASS, and NGDEEP surveys/fields and the first data release of JADES. We use strict quality cuts on EAZY photometric redshifts to obtain a reliable selection and characterization of high-redshift (z > 6.5) galaxies from a consistently processed set of deep, near-infrared imaging. Within an area of 180 arcmin2, we identify 1046 candidate galaxies at redshifts z > 6.5 and we use this sample to study the UV LF in four redshift bins between 7.5 < z < 13.5. The measured number density of galaxies at z = 8 and z = 9 matches those of past observations undertaken by the Hubble Space Telescope (HST). Our z = 10.5 measurements lie between early James Webb Space Telescope (JWST) results and past HST results, indicating cosmic variance may be the cause of previous high density measurements. However, the number densities of UV-luminous galaxies at z = 12.5 are high compared to predictions from simulations. When examining the star formation rate density of galaxies at this period, our observations are still largely consistent with a constant star formation efficiency, are slightly lower than previous early estimations using JWST, and support galaxy driven reionization at z ≤ 8.
UR - http://www.scopus.com/inward/record.url?scp=85190734025&partnerID=8YFLogxK
U2 - https://doi.org/10.3847/1538-4357/ad2a7b
DO - https://doi.org/10.3847/1538-4357/ad2a7b
M3 - Article
SN - 0004-637X
VL - 965
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2
M1 - 169
ER -