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  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., et al. (2021). Euclid Preparation. XIV. The Complete Calibration of the Color–Redshift Relation (C3R2) survey: data release 3. Astrophysical Journal Supplement Series, 256(1): 9. doi:10.3847/1538-4365/ac0833.

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Stanford, S. A., Author
Masters, D., Author
Darvish, B., Author
Stern, D., Author
Cohen, J. G., Author
Capak, P., Author
Hernitschek, N., Author
Davidzon, I., Author
Rhodes, J., Author
Sanders, D. B., Author
Mobasher, B., Author
Castander, F. J., Author
Paltani, S., Author
Aghanim, N., Author
Amara, A., Author
Auricchio, N., Author
Balestra, A., Author
Bender, R.1, Author           
Bodendorf, C.1, Author           
Bonino, D., Author
Branchini, E., AuthorBrinchmann, J., AuthorCapobianco, V., AuthorCarbone, C., AuthorCarretero, J., AuthorCasas, R., AuthorCastellano, M., AuthorCavuoti, S., AuthorCimatti, A., AuthorCledassou, R., AuthorConselice, C. J., AuthorCorcione, L., AuthorCostille, A., AuthorCropper, M., AuthorDegaudenzi, H., AuthorDouspis, M., AuthorDubath, F., AuthorDusini, S., AuthorFosalba, P., AuthorFrailis, M., AuthorFranceschi, E., AuthorFranzetti, P., AuthorFumana, M., AuthorGarilli, B., AuthorGiocoli, C., AuthorGrupp, F.1, Author           Haugan, S. V. H., AuthorHoekstra, H., AuthorHolmes, W., AuthorHormuth, F., AuthorHudelot, P., AuthorJahnke, K., AuthorKiessling, A., AuthorKilbinger, M., AuthorKitching, T., AuthorKubik, B., AuthorKümmel, M., AuthorKunz, M., AuthorKurki-Suonio, H., AuthorLaureijs, R., AuthorLigori, S., AuthorLilje, P. B., AuthorLloro, I., AuthorMaiorano, E., AuthorMarggraf, O., AuthorMarkovic, K., AuthorMassey, R., AuthorMeneghetti, M., AuthorMeylan, G., AuthorMoscardini, L., AuthorNiemi, S. M., AuthorPadilla, C., AuthorPasian, F., AuthorPedersen, K., AuthorPettorino, V., AuthorPires, S., AuthorPoncet, M., AuthorPopa, L., AuthorPozzetti, L., AuthorRaison, F.1, Author           Roncarelli, M., AuthorRossetti, E., AuthorSaglia, R.1, Author           Scaramella, R., AuthorSchneider, P., AuthorSecroun, A., AuthorSeidel, G., AuthorSerrano, S., AuthorSirignano, C., AuthorSirri, G., AuthorTaylor, A. N., AuthorTeplitz, H. I., AuthorTereno, I., AuthorToledo-Moreo, R., AuthorValentijn, E. A., AuthorValenziano, L., AuthorKleijn, G. A. Verdoes, AuthorWang, Y., AuthorZamorani, G., AuthorZoubian, J., AuthorBrescia, M., AuthorCongedo, G., AuthorConversi, L., AuthorCopin, Y., AuthorKermiche, S., AuthorKohley, R., AuthorMedinaceli, E., AuthorMei, S., AuthorMoresco, M., AuthorMorin, B., AuthorMunari, E., AuthorPolenta, G., AuthorSureau, F., AuthorCrespí, P. Tallada, AuthorVassallo, T., AuthorZacchei, A., AuthorAndreon, S., AuthorAussel, H., AuthorBaccigalupi, C., AuthorBalaguera-Antolínez, A., AuthorBaldi, M., AuthorBardelli, S., AuthorBiviano, A., AuthorBorsato, E., AuthorBozzo, E., AuthorBurigana, C., AuthorCabanac, R., AuthorCamera, S., AuthorCappi, A., AuthorCarvalho, C. S., AuthorCasas, S., AuthorCastignani, G., AuthorColodro-Conde, C., AuthorCoupon, J., AuthorCourtois, H. M., AuthorCuby, J.-G., AuthorSilva, A. Da, Authorde la Torre, S., AuthorFerdinando, D. Di, AuthorDuncan, C. A. J., AuthorDupac, X., AuthorFabricius, M.1, Author           Farina, M., AuthorFarrens, S., AuthorFerreira, P. G., AuthorFinelli, F., AuthorFlose-Reimberg, P., AuthorFotopoulou, S., AuthorGaleotta, S., AuthorGanga, K., AuthorGillard, W., AuthorGozaliasl, G., AuthorGraciá-Carpio, J.2, Author           Keihanen, E., AuthorKirkpatrick, C. C., AuthorLindholm, V., AuthorMainetti, G., AuthorMaino, D., AuthorMartinet, N., AuthorMarulli, F., AuthorMaturi, M., AuthorMaurogordato, S., AuthorMetcalf, R. B., AuthorNakajima, R., AuthorNeissner, C., AuthorNightingale, J. W., AuthorNucita, A. A., AuthorPatrizii, L., AuthorPotter, D., AuthorRenzi, A., AuthorRiccio, G., AuthorRomelli, E., AuthorSanchez, A. G.1, Author           Sapone, D., AuthorSchirmer, M., AuthorSchultheis, M., AuthorScottez, V., AuthorStanco, L., AuthorTenti, M., AuthorTeyssier, R., AuthorTorradeflot, F., AuthorValiviita, J., AuthorViel, M., AuthorWhittaker, L., AuthorZucca, E., Author more..
1Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society, ou_159895              
2Infrared and Submillimeter Astronomy, MPI for Extraterrestrial Physics, Max Planck Society, ou_159889              


Free keywords: -
 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.


 Dates: 2021-08-31
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.3847/1538-4365/ac0833
 Degree: -



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Title: Astrophysical Journal Supplement Series
Source Genre: Journal
Publ. Info: Chicago : Published by the University of Chicago Press for the American Astronomical Society.
Pages: - Volume / Issue: 256 (1) Sequence Number: 9 Start / End Page: - Identifier: ISSN: 0067-0049
CoNE: https://pure.mpg.de/cone/journals/resource/954922828211