Accès ouvert déclaré
2022
article
Euclid preparation : XX. The Complete Calibration of the Color-Redshift Relation survey: LBT observations and data release
R. Saglia, M. Fabricius, Raphael Zöller, R. Bender, Daniel Masters, D. Stern, S. Paltani, N. Auricchio, M. Baldi, C. Bodendorf, D. Bonino, E. Branchini, M. Brescia, J. Brinchmann, S. Camera, V. Capobianco, C. Carbone, J. Carretero, M. Castellano, S. Cavuoti, R. Clédassou, G. Congedo, L. Conversi, Y. Copin, L. Corcione, F. Courbin, A. Da Silva, H. Degaudenzi, M. Douspis, F. Dubath, C.A.J Duncan, S. Farrens, B. Garilli, W. Gillard, B Gillis, C Giocoli, A Grazian, F. Grupp, S. V. H. Haugan, W. Holmes, A. Hornstrup, K. Jahnkę, M. Kümmel, S. Kermiche, A. Kiessling, R. Laureijs, P.B. Lilje, I. Lloro, O. Marggraf, K. Markovič, F. Marulli, R. Massey, H. J. McCracken, M. Melchior, G. Meylan, M. Moresco, L. Moscardini, E. Munari, C. Padilla, F. Pasian, K. Pedersen, S. Pires, M. Poncet, F Raison, J. Rhodes, G. Riccio, E. Romelli, E Rossetti, D. Sapone, B Sartoris, P. Schneider, A. Secroun, D. Tavagnacco, I. Tutusaus, T. Vassallo, A. Zacchei, J. Zoubian, S. Andreon, J. Graciá-Carpio, E. Zucca, H. Aussel, A. Balaguera-Antolínez, M. Ballardini, A. Biviano, M. Bolzonella, E. Bozzo, R. Cabanac, A. Cappi, G. Castignani, A. Cooray, J. Coupon, H. M. Courtois, S. Davini, G. Desprez, H. Dole, S. Escoffier, M. Farina, S. Fotopoulou, K. Ganga, K. George, F. Giacomini, G. Gozaliasl, H. Hildebrandt, I. Hook, O. Ilbert, V. Kansal, A. Kashlinsky, E. Keihänen, A. Loureiro, J. F. Macías–Pérez, M. Magliocchetti, N. Martinet, S. Nadathur, L. Patrizii, D. Potter, A. Pourtsidou, P. Reimberg, A.G. Sánchez, Z. Sakr, M. Schirmer, E. Sefusatti, R Teyssier, A. Veropalumbo, M. Viel
0Citations signalées, ce qui n’est pas une note de qualité
12Institutions déclarées
2Pays d’affiliation déclarés
Rattachement africain : fr, de.
Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
The Complete Calibration of the Color–Redshift Relation survey (C3R2) is a spectroscopic program designed to empirically calibrate the galaxy color–redshift relation to the Euclid depth (I$_{E}$ = 24.5), a key ingredient for the success of Stage IV dark energy projects based on weak lensing cosmology. A spectroscopic calibration sample that is as representative as possible of the galaxies in the Euclid weak lensing sample is being collected, selecting galaxies from a self-organizing map (SOM) representation of the galaxy color space. Here, we present the results of a near-infrared H- and K-band spectroscopic campaign carried out using the LUCI instruments at the LBT. For a total of 251 galaxies, we present new highly reliable redshifts in the 1.3 ≤ z ≤ 1.7 and 2 ≤ z ≤ 2.7 ranges. The newly-determined redshifts populate 49 SOM cells that previously contained no spectroscopic measurements and almost twice the occupation numbers of an additional 153 SOM cells. A final optical ground-based observational effort is needed to calibrate the missing cells, in particular in the redshift range 1.7 ≤ z ≤ 2.7, which lack spectroscopic calibration. In the end, Euclid itself will deliver telluric-free near-IR spectra that can complete the calibration.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
La source scientifique ouverte est momentanément indisponible.
Les institutions déclarées
Une affiliation ne permet pas de déduire la nationalité d’un auteur.
Les sujets associés
Galaxies: Formation, Evolution, PhenomenaAstronomy and Astrophysical ResearchElectrical and Electromagnetic Research