Euclid preparation. LXI. Cosmic Dawn Survey: 'Pre-launch' multiwavelength catalogues for Euclid Deep Field North and Euclid Deep Field Fornax

L. Zalesky; C. J.R. Mcpartland; J. R. Weaver; S. Toft; D. B. Sanders; B. Mobasher; N. Suzuki; I. Szapudi; I. Valdes; G. Murphree; N. Chartab; N. Allen; S. Taamoli; S. W.J. Barrow; O. Chávez Ortiz; S. L. Finkelstein; S. Gwyn; M. Sawicki; H. J. Mccracken; D. Stern; H. Dannerbauer; B. Altieri; S. Andreon; N. Auricchio; C. Baccigalupi; M. Baldi; S. Bardelli; R. Bender; C. Bodendorf; D. Bonino; E. Branchini; M. Brescia; J. Brinchmann; S. Camera; V. Capobianco; C. Carbone; J. Carretero; S. Casas; F. J. Castander; M. Castellano; G. Castignani; S. Cavuoti; A. Cimatti; C. Colodro-Conde; S. M. Niemi; P. Schneider; Y. Wang; G. Gozaliasl; A. Hall; J. Hjorth; Euclid Collaboration

doi:10.1051/0004-6361/202451857

Euclid preparation. LXI. Cosmic Dawn Survey: 'Pre-launch' multiwavelength catalogues for Euclid Deep Field North and Euclid Deep Field Fornax

L. Zalesky^*, C. J.R. Mcpartland, J. R. Weaver, S. Toft, D. B. Sanders, B. Mobasher, N. Suzuki, I. Szapudi, I. Valdes, G. Murphree, N. Chartab, N. Allen, S. Taamoli, S. W.J. Barrow, O. Chávez Ortiz, S. L. Finkelstein, S. Gwyn, M. Sawicki, H. J. Mccracken, D. SternH. Dannerbauer, B. Altieri, S. Andreon, N. Auricchio, C. Baccigalupi, M. Baldi, S. Bardelli, R. Bender, C. Bodendorf, D. Bonino, E. Branchini, M. Brescia, J. Brinchmann, S. Camera, V. Capobianco, C. Carbone, J. Carretero, S. Casas, F. J. Castander, M. Castellano, G. Castignani, S. Cavuoti, A. Cimatti, C. Colodro-Conde, S. M. Niemi, P. Schneider, Y. Wang, G. Gozaliasl, A. Hall, J. Hjorth, Euclid Collaboration

^*Corresponding author for this work

Department of Computer Science

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Abstract

The Cosmic Dawn Survey (DAWN survey) provides multiwavelength (UV/optical to mid-IR) data across the combined 59 deg² of the Euclid Deep and Auxiliary fields (EDFs and EAFs). In this work, the first public data release from the DAWN survey is presented. The catalogues made available herein consist of a subset of the full DAWN survey that includes two EDFs: EDF North (EDF-N) and EDF Fornax (EDF-F). Each field has been covered by the ongoing Hawaii Twenty Square Degree Survey (H20), which includes imaging from the CFHT MegaCam in the u filter and from the Subaru Hyper Suprime-Cam (HSC) in the griz filters. Each field has been further covered by Spitzer/IRAC 3.6-4.5μm imaging spanning 10 deg² and reaching ∼25 mag AB (5Ï). All present H20 imaging and all publicly available imaging from the aforementioned facilities were combined with the deep Spitzer/IRAC data to create source catalogues spanning a total area of 16.87 deg² in EDF-N and 2.85 deg² in EDF-F for this first release. These catalogues are referred to as the pre-launch (PL), as Euclid data is not yet public for these fields and therefore it is not included. Photometry was measured from these multiwavelength data using The Farmer, a novel and well validated model-based photometry code. Photometric redshifts and stellar masses were computed using two independent codes for modelling spectral energy distributions: EAZY and LePhare. Photometric redshifts show good agreement with spectroscopic redshifts (Ï_NMAD ∼ 0.5, η < 8% at i < 25). Number counts, photometric redshifts and stellar masses were further validated in comparison to the COSMOS2020 catalogue. The DAWN survey PL catalogues are designed to be of immediate use in these two EDFs and will be continuously updated and made available as both new ground-based data and spaced-based data from Euclid are acquired and made public. Future data releases will provide catalogues of all EDFs and EAFs and include Euclid data.

Original language	English
Article number	A229
Pages (from-to)	1-27
Number of pages	27
Journal	Astronomy and Astrophysics
Volume	695
DOIs	https://doi.org/10.1051/0004-6361/202451857
Publication status	Published - Mar 2025
MoE publication type	A1 Journal article-refereed

Keywords

Catalogs
Editorials, notices
Galaxies: general
Miscellaneous
Surveys

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10.1051/0004-6361/202451857

Euclid_preparation._LXI._Cosmic_Dawn_Survey_-_'Pre-launch'_multiwavelength_catalogues_for_Euclid_Deep_Field_North_and_Euclid_Deep_Field_FornaxFinal published version, 10.6 MBLicence: CC BY

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Zalesky, L., Mcpartland, C. J. R., Weaver, J. R., Toft, S., Sanders, D. B., Mobasher, B., Suzuki, N., Szapudi, I., Valdes, I., Murphree, G., Chartab, N., Allen, N., Taamoli, S., Barrow, S. W. J., Chávez Ortiz, O., Finkelstein, S. L., Gwyn, S., Sawicki, M., Mccracken, H. J., ... Euclid Collaboration (2025). Euclid preparation. LXI. Cosmic Dawn Survey: 'Pre-launch' multiwavelength catalogues for Euclid Deep Field North and Euclid Deep Field Fornax. Astronomy and Astrophysics, 695, 1-27. Article A229. https://doi.org/10.1051/0004-6361/202451857

@article{846bf8d8e24d44efb4a0468cdc48935d,

title = "Euclid preparation. LXI. Cosmic Dawn Survey: 'Pre-launch' multiwavelength catalogues for Euclid Deep Field North and Euclid Deep Field Fornax",

abstract = "The Cosmic Dawn Survey (DAWN survey) provides multiwavelength (UV/optical to mid-IR) data across the combined 59 deg2 of the Euclid Deep and Auxiliary fields (EDFs and EAFs). In this work, the first public data release from the DAWN survey is presented. The catalogues made available herein consist of a subset of the full DAWN survey that includes two EDFs: EDF North (EDF-N) and EDF Fornax (EDF-F). Each field has been covered by the ongoing Hawaii Twenty Square Degree Survey (H20), which includes imaging from the CFHT MegaCam in the u filter and from the Subaru Hyper Suprime-Cam (HSC) in the griz filters. Each field has been further covered by Spitzer/IRAC 3.6-4.5μm imaging spanning 10 deg2 and reaching ∼25 mag AB (5{\"I}). All present H20 imaging and all publicly available imaging from the aforementioned facilities were combined with the deep Spitzer/IRAC data to create source catalogues spanning a total area of 16.87 deg2 in EDF-N and 2.85 deg2 in EDF-F for this first release. These catalogues are referred to as the pre-launch (PL), as Euclid data is not yet public for these fields and therefore it is not included. Photometry was measured from these multiwavelength data using The Farmer, a novel and well validated model-based photometry code. Photometric redshifts and stellar masses were computed using two independent codes for modelling spectral energy distributions: EAZY and LePhare. Photometric redshifts show good agreement with spectroscopic redshifts ({\"I}NMAD ∼ 0.5, η < 8% at i < 25). Number counts, photometric redshifts and stellar masses were further validated in comparison to the COSMOS2020 catalogue. The DAWN survey PL catalogues are designed to be of immediate use in these two EDFs and will be continuously updated and made available as both new ground-based data and spaced-based data from Euclid are acquired and made public. Future data releases will provide catalogues of all EDFs and EAFs and include Euclid data.",

keywords = "Catalogs, Editorials, notices, Galaxies: general, Miscellaneous, Surveys",

author = "L. Zalesky and Mcpartland, {C. J.R.} and Weaver, {J. R.} and S. Toft and Sanders, {D. B.} and B. Mobasher and N. Suzuki and I. Szapudi and I. Valdes and G. Murphree and N. Chartab and N. Allen and S. Taamoli and Barrow, {S. W.J.} and {Ch{\'a}vez Ortiz}, O. and Finkelstein, {S. L.} and S. Gwyn and M. Sawicki and Mccracken, {H. J.} and D. Stern and H. Dannerbauer and B. Altieri and S. Andreon and N. Auricchio and C. Baccigalupi and M. Baldi and S. Bardelli and R. Bender and C. Bodendorf and D. Bonino and E. Branchini and M. Brescia and J. Brinchmann and S. Camera and V. Capobianco and C. Carbone and J. Carretero and S. Casas and Castander, {F. J.} and M. Castellano and G. Castignani and S. Cavuoti and A. Cimatti and C. Colodro-Conde and Niemi, {S. M.} and P. Schneider and Y. Wang and G. Gozaliasl and A. Hall and J. Hjorth and {Euclid Collaboration}",

note = "Publisher Copyright: {\textcopyright} 2025 The Authors.",

year = "2025",

month = mar,

doi = "10.1051/0004-6361/202451857",

language = "English",

volume = "695",

pages = "1--27",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

Zalesky, L, Mcpartland, CJR, Weaver, JR, Toft, S, Sanders, DB, Mobasher, B, Suzuki, N, Szapudi, I, Valdes, I, Murphree, G, Chartab, N, Allen, N, Taamoli, S, Barrow, SWJ, Chávez Ortiz, O, Finkelstein, SL, Gwyn, S, Sawicki, M, Mccracken, HJ, Stern, D, Dannerbauer, H, Altieri, B, Andreon, S, Auricchio, N, Baccigalupi, C, Baldi, M, Bardelli, S, Bender, R, Bodendorf, C, Bonino, D, Branchini, E, Brescia, M, Brinchmann, J, Camera, S, Capobianco, V, Carbone, C, Carretero, J, Casas, S, Castander, FJ, Castellano, M, Castignani, G, Cavuoti, S, Cimatti, A, Colodro-Conde, C, Niemi, SM, Schneider, P, Wang, Y, Gozaliasl, G, Hall, A, Hjorth, J & Euclid Collaboration 2025, 'Euclid preparation. LXI. Cosmic Dawn Survey: 'Pre-launch' multiwavelength catalogues for Euclid Deep Field North and Euclid Deep Field Fornax', Astronomy and Astrophysics, vol. 695, A229, pp. 1-27. https://doi.org/10.1051/0004-6361/202451857

TY - JOUR

T1 - Euclid preparation. LXI. Cosmic Dawn Survey: 'Pre-launch' multiwavelength catalogues for Euclid Deep Field North and Euclid Deep Field Fornax

AU - Zalesky, L.

AU - Mcpartland, C. J.R.

AU - Weaver, J. R.

AU - Toft, S.

AU - Sanders, D. B.

AU - Mobasher, B.

AU - Suzuki, N.

AU - Szapudi, I.

AU - Valdes, I.

AU - Murphree, G.

AU - Chartab, N.

AU - Allen, N.

AU - Taamoli, S.

AU - Barrow, S. W.J.

AU - Chávez Ortiz, O.

AU - Finkelstein, S. L.

AU - Gwyn, S.

AU - Sawicki, M.

AU - Mccracken, H. J.

AU - Stern, D.

AU - Dannerbauer, H.

AU - Altieri, B.

AU - Andreon, S.

AU - Auricchio, N.

AU - Baccigalupi, C.

AU - Baldi, M.

AU - Bardelli, S.

AU - Bender, R.

AU - Bodendorf, C.

AU - Bonino, D.

AU - Branchini, E.

AU - Brescia, M.

AU - Brinchmann, J.

AU - Camera, S.

AU - Capobianco, V.

AU - Carbone, C.

AU - Carretero, J.

AU - Casas, S.

AU - Castander, F. J.

AU - Castellano, M.

AU - Castignani, G.

AU - Cavuoti, S.

AU - Cimatti, A.

AU - Colodro-Conde, C.

AU - Niemi, S. M.

AU - Schneider, P.

AU - Wang, Y.

AU - Gozaliasl, G.

AU - Hall, A.

AU - Hjorth, J.

AU - Euclid Collaboration

PY - 2025/3

Y1 - 2025/3

N2 - The Cosmic Dawn Survey (DAWN survey) provides multiwavelength (UV/optical to mid-IR) data across the combined 59 deg2 of the Euclid Deep and Auxiliary fields (EDFs and EAFs). In this work, the first public data release from the DAWN survey is presented. The catalogues made available herein consist of a subset of the full DAWN survey that includes two EDFs: EDF North (EDF-N) and EDF Fornax (EDF-F). Each field has been covered by the ongoing Hawaii Twenty Square Degree Survey (H20), which includes imaging from the CFHT MegaCam in the u filter and from the Subaru Hyper Suprime-Cam (HSC) in the griz filters. Each field has been further covered by Spitzer/IRAC 3.6-4.5μm imaging spanning 10 deg2 and reaching ∼25 mag AB (5Ï). All present H20 imaging and all publicly available imaging from the aforementioned facilities were combined with the deep Spitzer/IRAC data to create source catalogues spanning a total area of 16.87 deg2 in EDF-N and 2.85 deg2 in EDF-F for this first release. These catalogues are referred to as the pre-launch (PL), as Euclid data is not yet public for these fields and therefore it is not included. Photometry was measured from these multiwavelength data using The Farmer, a novel and well validated model-based photometry code. Photometric redshifts and stellar masses were computed using two independent codes for modelling spectral energy distributions: EAZY and LePhare. Photometric redshifts show good agreement with spectroscopic redshifts (ÏNMAD ∼ 0.5, η < 8% at i < 25). Number counts, photometric redshifts and stellar masses were further validated in comparison to the COSMOS2020 catalogue. The DAWN survey PL catalogues are designed to be of immediate use in these two EDFs and will be continuously updated and made available as both new ground-based data and spaced-based data from Euclid are acquired and made public. Future data releases will provide catalogues of all EDFs and EAFs and include Euclid data.

AB - The Cosmic Dawn Survey (DAWN survey) provides multiwavelength (UV/optical to mid-IR) data across the combined 59 deg2 of the Euclid Deep and Auxiliary fields (EDFs and EAFs). In this work, the first public data release from the DAWN survey is presented. The catalogues made available herein consist of a subset of the full DAWN survey that includes two EDFs: EDF North (EDF-N) and EDF Fornax (EDF-F). Each field has been covered by the ongoing Hawaii Twenty Square Degree Survey (H20), which includes imaging from the CFHT MegaCam in the u filter and from the Subaru Hyper Suprime-Cam (HSC) in the griz filters. Each field has been further covered by Spitzer/IRAC 3.6-4.5μm imaging spanning 10 deg2 and reaching ∼25 mag AB (5Ï). All present H20 imaging and all publicly available imaging from the aforementioned facilities were combined with the deep Spitzer/IRAC data to create source catalogues spanning a total area of 16.87 deg2 in EDF-N and 2.85 deg2 in EDF-F for this first release. These catalogues are referred to as the pre-launch (PL), as Euclid data is not yet public for these fields and therefore it is not included. Photometry was measured from these multiwavelength data using The Farmer, a novel and well validated model-based photometry code. Photometric redshifts and stellar masses were computed using two independent codes for modelling spectral energy distributions: EAZY and LePhare. Photometric redshifts show good agreement with spectroscopic redshifts (ÏNMAD ∼ 0.5, η < 8% at i < 25). Number counts, photometric redshifts and stellar masses were further validated in comparison to the COSMOS2020 catalogue. The DAWN survey PL catalogues are designed to be of immediate use in these two EDFs and will be continuously updated and made available as both new ground-based data and spaced-based data from Euclid are acquired and made public. Future data releases will provide catalogues of all EDFs and EAFs and include Euclid data.

KW - Catalogs

KW - Editorials, notices

KW - Galaxies: general

KW - Miscellaneous

KW - Surveys

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U2 - 10.1051/0004-6361/202451857

DO - 10.1051/0004-6361/202451857

M3 - Article

AN - SCOPUS:105001209433

SN - 0004-6361

VL - 695

SP - 1

EP - 27

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

M1 - A229

ER -

Euclid preparation. LXI. Cosmic Dawn Survey: 'Pre-launch' multiwavelength catalogues for Euclid Deep Field North and Euclid Deep Field Fornax

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