Euclid preparation. LXIV. The Cosmic Dawn Survey (DAWN) of the Euclid Deep and Auxiliary Fields

C. J.R. Mcpartland*, L. Zalesky, J. R. Weaver, S. Toft, D. B. Sanders, B. Mobasher, N. Suzuki, I. Szapudi, I. Valdes, G. Murphree, N. Chartab, N. Allen, S. Taamoli, P. R.M. Eisenhardt, S. Arnouts, H. Atek, J. Brinchmann, M. Castellano, R. Chary, O. Chávez OrtizJ. G. Cuby, S. L. Finkelstein, T. Goto, S. Gwyn, Y. Harikane, A. K. Inoue, H. J. Mccracken, J. J. Mohr, P. A. Oesch, M. Ouchi, M. Oguri, J. Rhodes, H. J.A. Rottgering, M. Sawicki, R. Scaramella, C. Scarlata, J. D. Silverman, D. Stern, H. I. Teplitz, M. Shuntov, B. Altieri, A. Amara, S. Andreon, S. M. Niemi, A. G. Sánchez, P. Schneider, Y. Wang, G. Gozaliasl, A. Hall, J. Hjorth, Euclid Collaboration

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Euclid will provide deep near-infrared (NIR) imaging to ∼26.5 AB magnitude over ∼59 deg2 in its deep and auxiliary fields. The Cosmic DAWN survey combines dedicated and archival UV- NIR observations to provide matched depth multiwavelength imaging of the Euclid deep and auxiliary fields. The DAWN survey will provide consistently measured Euclid NIR-selected photometric catalogues, accurate photometric redshifts, and measurements of galaxy properties to a redshift of z ∼ 10. The DAWN catalogues include Spitzer IRAC data that are critical for stellar mass measurements at z ≳ 2.5 and high-z science. These catalogues complement the standard Euclid catalogues, which will not include Spitzer IRAC data. In this paper, we present an overview of the survey, including the footprints of the survey fields, the existing and planned observations, and the primary science goals for the combined data set.

Original languageEnglish
Article numberA259
Pages (from-to)1-15
Number of pages15
JournalAstronomy and Astrophysics
Volume695
DOIs
Publication statusPublished - Mar 2025
MoE publication typeA1 Journal article-refereed

Keywords

  • Catalogs
  • Galaxies: evolution
  • Galaxies: high-redshift
  • Galaxies: luminosity function
  • Mass function
  • Surveys

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