Euclid Preparation. XIV. The Complete Calibration of the Color-Redshift Relation (C3R2) Survey: Data Release 3

Stanford, S.A.; Masters, D.; Darvish, B.; Stern, D.; Cohen, J.G.; Capak, P.; Hernitschek, N.; Davidzon, I.; Rhodes, J.; Sanders, D.B.; Mobasher, B.; Castander, F.J.; Paltani, S.; Aghanim, N.; Amara, A.; Auricchio, N.; Balestra, A.; Bender, R.; Bodendorf, C.; Bonino, D.; Branchini, E.; Brinchmann, J.; Capobianco, V.; Carbone, C.; Carretero, J.; Casas, R.; Castellano, M.; Cavuoti, S.; Cimatti, A.; Cledassou, R.; Conselice, C.J.; Corcione, L.; Costille, A.; Cropper, M.; Degaudenzi, H.; Douspis, M.; Dubath, F.; Dusini, S.; Fosalba, P.; Frailis, M.; Franceschi, E.; Franzetti, P.; Fumana, M.; Garilli, B.; Giocoli, C.; Grupp, F.; Haugan, S.V.H.; Hoekstra, H.; Holmes, W.; Hormuth, F.; Hudelot, P.; Jahnke, K.; Kiessling, A.; Kilbinger, M.; Kitching, T.; Kubik, B.; Kümmel, M.; Kunz, M.; Kurki-Suonio, H.; Laureijs, R.; Ligori, S.; Lilje, P.B.; Lloro, I.; Maiorano, E.; Marggraf, O.; Markovic, K.; Massey, R.; Meneghetti, M.; Meylan, G.; Moscardini, L.; Niemi, S.M.; Padilla, C.; Pasian, F.; Pedersen, K.; Pettorino, V.; Pires, S.; Poncet, M.; Popa, L.; Pozzetti, L.; Raison, F.; Roncarelli, M.; Rossetti, E.; Saglia, R.; Scaramella, R.; Schneider, P.; Secroun, A.; Seidel, G.; Serrano, S.; Sirignano, C.; Sirri, G.; Taylor, A.N.; Teplitz, H.I.; Tereno, I.; Toledo-Moreo, R.; Valentijn, E.A.; Valenziano, L.; Verdoes Kleijn, G.A.; Wang, Y.; Zamorani, G.; Zoubian, J.; Brescia, M.; Congedo, G.; Conversi, L.; Copin, Y.; Kermiche, S.; Kohley, R.; Medinaceli, E.; Mei, S.; Moresco, M.; Morin, B.; Munari, E.; Polenta, G.; Sureau, F.; Tallada Crespí, P.; Vassallo, T.; Zacchei, A.; Andreon, S.; Aussel, H.; Baccigalupi, C.; Balaguera-Antolínez, A.; Baldi, M.; Bardelli, S.; Biviano, A.; Borsato, E.; Bozzo, E.; Burigana, C.; Cabanac, R.; Camera, S.; Cappi, A.; Carvalho, C.S.; Casas, S.; Castignani, G.; Colodro-Conde, C.; Coupon, J.; Courtois, H.M.; Cuby, J. -G.; Da Silva, A.; de la Torre, S.; Di Ferdinando, D.; Duncan, C.A.J.; Dupac, X.; Fabricius, M.; Farina, M.; Farrens, S.; Ferreira, P.G.; Finelli, F.; Flose-Reimberg, P.; Fotopoulou, S.; Galeotta, S.; Ganga, K.; Gillard, W.; Gozaliasl, G.; Graciá-Carpio, J.; Keihanen, E.; Kirkpatrick, C.C.; Lindholm, V.; Mainetti, G.; Maino, D.; Martinet, N.; Marulli, F.; Maturi, M.; Maurogordato, S.; Metcalf, R.B.; Nakajima, R.; Neissner, C.; Nightingale, J.W.; Nucita, A.A.; Patrizii, L.; Potter, D.; Renzi, A.; Riccio, G.; Romelli, E.; Sánchez, A.G.; Sapone, D.; Schirmer, M.; Schultheis, M.; Scottez, V.; Stanco, L.; Tenti, M.; Teyssier, R.; Torradeflot, F.; Valiviita, J.; Viel, M.; Whittaker, L.; Zucca, E.

doi:10.3847/1538-4365/ac0833

Euclid Preparation. XIV. The Complete Calibration of the Color-Redshift Relation (C3R2) Survey: Data Release 3

Stanford, S.A.; Masters, D.; Darvish, B.; Stern, D.; Cohen, J.G.; Capak, P.; Hernitschek, N.; Davidzon, I.; Rhodes, J.; Sanders, D.B.; Mobasher, B.; Castander, F.J.; Paltani, S.; Aghanim, N.; Amara, A.; Auricchio, N.; Balestra, A.; Bender, R.; Bodendorf, C.; Bonino, D.; Branchini, E.; Brinchmann, J.; Capobianco, V.; Carbone, C.; Carretero, J.; Casas, R.; Castellano, M.; Cavuoti, S.; Cimatti, A.; Cledassou, R.; Conselice, C.J.; Corcione, L.; Costille, A.; Cropper, M.; Degaudenzi, H.; Douspis, M.; Dubath, F.; Dusini, S.; Fosalba, P.; Frailis, M.; Franceschi, E.; Franzetti, P.; Fumana, M.; Garilli, B.; Giocoli, C.; Grupp, F.; Haugan, S.V.H.; Hoekstra, H.; Holmes, W.; Hormuth, F.; Hudelot, P.; Jahnke, K.; Kiessling, A.; Kilbinger, M.; Kitching, T.; Kubik, B.; Kümmel, M.; Kunz, M.; Kurki-Suonio, H.; Laureijs, R.; Ligori, S.; Lilje, P.B.; Lloro, I.; Maiorano, E.; Marggraf, O.; Markovic, K.; Massey, R.; Meneghetti, M.; Meylan, G.; Moscardini, L.; Niemi, S.M.; Padilla, C.; Pasian, F.; Pedersen...

Authors

S.A. Stanford

D. Masters

B. Darvish

D. Stern

J.G. Cohen

P. Capak

N. Hernitschek

I. Davidzon

J. Rhodes

D.B. Sanders

B. Mobasher

F.J. Castander

S. Paltani

N. Aghanim

A. Amara

N. Auricchio

A. Balestra

R. Bender

C. Bodendorf

D. Bonino

E. Branchini

J. Brinchmann

V. Capobianco

C. Carbone

J. Carretero

R. Casas

M. Castellano

S. Cavuoti

A. Cimatti

R. Cledassou

C.J. Conselice

L. Corcione

A. Costille

M. Cropper

H. Degaudenzi

M. Douspis

F. Dubath

S. Dusini

P. Fosalba

M. Frailis

E. Franceschi

P. Franzetti

M. Fumana

B. Garilli

C. Giocoli

F. Grupp

S.V.H. Haugan

H. Hoekstra

W. Holmes

F. Hormuth

P. Hudelot

K. Jahnke

A. Kiessling

M. Kilbinger

T. Kitching

B. Kubik

M. Kümmel

M. Kunz

H. Kurki-Suonio

R. Laureijs

S. Ligori

P.B. Lilje

I. Lloro

E. Maiorano

O. Marggraf

K. Markovic

Professor Richard Massey r.j.massey@durham.ac.uk
Professor

M. Meneghetti

G. Meylan

L. Moscardini

S.M. Niemi

C. Padilla

F. Pasian

K. Pedersen

V. Pettorino

S. Pires

M. Poncet

L. Popa

L. Pozzetti

F. Raison

M. Roncarelli

E. Rossetti

R. Saglia

R. Scaramella

P. Schneider

A. Secroun

G. Seidel

S. Serrano

C. Sirignano

G. Sirri

A.N. Taylor

H.I. Teplitz

I. Tereno

R. Toledo-Moreo

E.A. Valentijn

L. Valenziano

G.A. Verdoes Kleijn

Y. Wang

G. Zamorani

J. Zoubian

M. Brescia

G. Congedo

L. Conversi

Y. Copin

S. Kermiche

R. Kohley

E. Medinaceli

S. Mei

M. Moresco

B. Morin

E. Munari

G. Polenta

F. Sureau

P. Tallada Crespí

T. Vassallo

A. Zacchei

S. Andreon

H. Aussel

C. Baccigalupi

A. Balaguera-Antolínez

M. Baldi

S. Bardelli

A. Biviano

E. Borsato

E. Bozzo

C. Burigana

R. Cabanac

S. Camera

A. Cappi

C.S. Carvalho

S. Casas

G. Castignani

C. Colodro-Conde

J. Coupon

H.M. Courtois

J. -G. Cuby

A. Da Silva

S. de la Torre

D. Di Ferdinando

C.A.J. Duncan

X. Dupac

M. Fabricius

M. Farina

S. Farrens

P.G. Ferreira

F. Finelli

P. Flose-Reimberg

S. Fotopoulou

S. Galeotta

K. Ganga

W. Gillard

G. Gozaliasl

J. Graciá-Carpio

E. Keihanen

C.C. Kirkpatrick

V. Lindholm

G. Mainetti

D. Maino

N. Martinet

F. Marulli

M. Maturi

S. Maurogordato

R.B. Metcalf

R. Nakajima

C. Neissner

J.W. Nightingale

A.A. Nucita

L. Patrizii

D. Potter

A. Renzi

G. Riccio

E. Romelli

A.G. Sánchez

D. Sapone

M. Schirmer

M. Schultheis

V. Scottez

L. Stanco

M. Tenti

R. Teyssier

F. Torradeflot

J. Valiviita

M. Viel

L. Whittaker

E. Zucca

Abstract

The Complete Calibration of the Color–Redshift Relation (C3R2) survey is obtaining spectroscopic redshifts in order to map the relation between galaxy color and redshift to a depth of i ∼ 24.5 (AB). The primary goal is to enable sufficiently accurate photometric redshifts for Stage iv dark energy projects, particularly Euclid and the Nancy Grace Roman Space Telescope (Roman), which are designed to constrain cosmological parameters through weak lensing. We present 676 new high-confidence spectroscopic redshifts obtained by the C3R2 survey in the 2017B–2019B semesters using the DEIMOS, LRIS, and MOSFIRE multiobject spectrographs on the Keck telescopes. Combined with the 4454 redshifts previously published by this project, the C3R2 survey has now obtained and published 5130 high-quality galaxy spectra and redshifts. If we restrict consideration to only the 0.2 < zp < 2.6 range of interest for the Euclid cosmological goals, then with the current data release, C3R2 has increased the spectroscopic redshift coverage of the Euclid color space from 51% (as reported by Masters et al.) to the current 91%. Once completed and combined with extensive data collected by other spectroscopic surveys, C3R2 should provide the spectroscopic calibration set needed to enable photometric redshifts to meet the cosmology requirements for Euclid, and make significant headway toward solving the problem for Roman.

Citation

Stanford, S., Masters, D., Darvish, B., Stern, D., Cohen, J., Capak, P., Hernitschek, N., Davidzon, I., Rhodes, J., Sanders, D., Mobasher, B., Castander, F., Paltani, S., Aghanim, N., Amara, A., Auricchio, N., Balestra, A., Bender, R., Bodendorf, C., Bonino, D., …Zucca, E. (2021). Euclid Preparation. XIV. The Complete Calibration of the Color-Redshift Relation (C3R2) Survey: Data Release 3. Astrophysical Journal Supplement, 256(1), Article 9. https://doi.org/10.3847/1538-4365/ac0833

Journal Article Type	Article
Acceptance Date	May 26, 2021
Online Publication Date	Aug 31, 2021
Publication Date	2021-09
Deposit Date	Sep 29, 2021
Publicly Available Date	Jan 18, 2022
Journal	The Astrophysical Journal Supplement Series
Print ISSN	0067-0049
Electronic ISSN	1538-4365
Publisher	American Astronomical Society
Peer Reviewed	Peer Reviewed
Volume	256
Issue	1
Article Number	9
DOI	https://doi.org/10.3847/1538-4365/ac0833
Public URL	https://durham-repository.worktribe.com/output/1237726