@article{128ddceed2e6457086accd287baa5a37,
title = "The Dark Energy Survey Year 3 high-redshift sample: Selection, characterization, and analysis of galaxy clustering",
abstract = "The fiducial cosmological analyses of imaging surveys like DES typically probe the Universe at redshifts z < 1. We present the selection and characterization of high-redshift galaxy samples using DES Year 3 data, and the analysis of their galaxy clustering measurements. In particular, we use galaxies that are fainter than those used in the previous DES Year 3 analyses and a Bayesian redshift scheme to define three tomographic bins with mean redshifts around z ∼0.9, 1.2, and 1.5, which extend the redshift coverage of the fiducial DES Year 3 analysis. These samples contain a total of about 9 million galaxies, and their galaxy density is more than 2 times higher than those in the DES Year 3 fiducial case. We characterize the redshift uncertainties of the samples, including the usage of various spectroscopic and high-quality redshift samples, and we develop a machine-learning method to correct for correlations between galaxy density and survey observing conditions.",
keywords = "cosmological parameters, galaxies: high-redshift, large-scale structure of Universe",
author = "{(DES Collaboration)} and C. S{\'a}nchez and A. Alarcon and Bernstein, {G. M.} and J. Sanchez and S. Pandey and M. Raveri and J. Prat and N. Weaverdyck and I. Sevilla-Noarbe and C. Chang and E. Baxter and Y. Omori and B. Jain and O. Alves and A. Amon and K. Bechtol and Becker, {M. R.} and J. Blazek and A. Choi and A. Campos and Rosell, {A. Carnero} and Kind, {M. Carrasco} and M. Crocce and D. Cross and J. Derose and Diehl, {H. T.} and S. Dodelson and A. Drlica-Wagner and K. Eckert and Eifler, {T. F.} and J. Elvin-Poole and S. Everett and X. Fang and P. Fosalba and D. Gruen and Gruendl, {R. A.} and I. Harrison and Hartley, {W. G.} and H. Huang and Huff, {E. M.} and N. Kuropatkin and N. Maccrann and J. McCullough and J. Myles and E. Krause and A. Porredon and M. Rodriguez-Monroy and Rykoff, {E. S.} and Secco, {L. F.} and E. Sheldon",
note = "Publisher Copyright: {\textcopyright}m and the Hubble parameter h and 2-3 per cent measurements of the amplitude of the galaxy clustering signals, probing galaxy bias and the amplitude of matter fluctuations, bσ8. A companion paper (in preparation) will present the cross-correlations of these high-z samples with cosmic microwave background lensing from Planck and South Pole Telescope, and the cosmological analysis of those measurements in combination with the galaxy clustering presented in this work. ",
year = "2023",
month = nov,
day = "1",
doi = "10.1093/mnras/stad2402",
language = "English (US)",
volume = "525",
pages = "3896--3922",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "3",
}