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  Euclid preparation - XV. Forecasting cosmological constraints for the Euclid and CMB joint analysis

Ilic, S., Aghanim, N., Baccigalupi, C., Bermejo-Climent, J. R., Fabbian, G., Legrand, L., et al. (2022). Euclid preparation - XV. Forecasting cosmological constraints for the Euclid and CMB joint analysis. Astronomy and Astrophysics, 657: A91. doi:10.1051/0004-6361/202141556.

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Ilic, S., Author
Aghanim, N., Author
Baccigalupi, C., Author
Bermejo-Climent, J. R., Author
Fabbian, G., Author
Legrand, L., Author
Paoletti, D., Author
Ballardini, M., Author
Archidiacono, M., Author
Douspis, M., Author
Finelli, F., Author
Ganga, K., Author
Hernández-Monteagudo, C., Author
Lattanzi, M., Author
Marinucci, D., Author
Migliaccio, M., Author
Carbone, C., Author
Casas, S., Author
Martinelli, M., Author
Tutusaus, I., Author
Natoli, P., AuthorNtelis, P., AuthorPagano, L., AuthorWenzl, L., AuthorGruppuso, A., AuthorKitching, T., AuthorLanger, M., AuthorMauri, N., AuthorPatrizii, L., AuthorRenzi, A., AuthorSirri, G., AuthorStanco, L., AuthorTenti, M., AuthorVielzeuf, P., AuthorLacasa, F., AuthorPolenta, G., AuthorYankelevich, V., AuthorBlanchard, A., AuthorSakr, Z., AuthorPourtsidou, A., AuthorCamera, S., AuthorCardone, V. F., AuthorKilbinger, M., AuthorKunz, M., AuthorMarkovic, K., AuthorPettorino, V., AuthorSánchez, A. G.1, Author              Sapone, D., AuthorAmara, A., AuthorAuricchio, N., AuthorBender, R.1, Author              Bodendorf, C.1, Author              Bonino, D., AuthorBranchini, E., AuthorBrescia, M., AuthorBrinchmann, J., AuthorCapobianco, V., AuthorCarretero, J., AuthorCastander, F. J., AuthorCastellano, M., AuthorCavuoti, S., AuthorCimatti, A., AuthorCledassou, R., AuthorCongedo, G., AuthorConselice, C. J., AuthorConversi, L., AuthorCopin, Y., AuthorCorcione, L., AuthorCostille, A., AuthorCropper, M., AuthorSilva, A. Da, AuthorDegaudenzi, H., AuthorDubath, F., AuthorDuncan, C. A. J., AuthorDupac, X., AuthorDusini, S., AuthorEalet, A., AuthorFarrens, S., AuthorFosalba, P., AuthorFrailis, M., AuthorFranceschi, E., AuthorFranzetti, P., AuthorFumana, M., AuthorGarilli, B., AuthorGillard, W., AuthorGillis, B., AuthorGiocoli, C., AuthorGrazian, A., AuthorGrupp, F.1, Author              Guzzo, L., AuthorHaugan, S. V. H., AuthorHoekstra, H., AuthorHolmes, W., AuthorHormuth, F., AuthorHudelot, P., AuthorJahnke, K., AuthorKermiche, S., AuthorKiessling, A., AuthorKohley, R., AuthorKubik, B., AuthorKümmel, M., AuthorKurki-Suonio, H., AuthorLaureijs, R., AuthorLigori, S., AuthorLilje, P. B., AuthorLloro, I., AuthorMansutti, O., AuthorMarggraf, O., AuthorMarulli, F., AuthorMassey, R., AuthorMaurogordato, S., AuthorMeneghetti, M., AuthorMerlin, E., AuthorMeylan, G., AuthorMoresco, M., AuthorMorin, B., AuthorMoscardini, L., AuthorMunari, E., AuthorNiemi, S. M., AuthorPadilla, C., AuthorPaltani, S., AuthorPasian, F., AuthorPedersen, K., AuthorPercival, W., AuthorPires, S., AuthorPoncet, M., AuthorPopa, L., AuthorPozzetti, L., AuthorRaison, F.1, Author              Rebolo, R., AuthorRhodes, J., AuthorRoncarelli, M., AuthorRossetti, E., AuthorSaglia, R.1, Author              Scaramella, R., AuthorSchneider, P., AuthorSecroun, A., AuthorSeidel, G., AuthorSerrano, S., AuthorSirignano, C., AuthorStarck, J. L., AuthorTallada-Crespí, P., AuthorTaylor, A. N., AuthorTereno, I., AuthorToledo-Moreo, R., AuthorTorradeflot, F., AuthorValentijn, E. A., AuthorValenziano, L., AuthorKleijn, G. A. Verdoes, AuthorWang, Y., AuthorWelikala, N., AuthorWeller, J.1, Author              Zamorani, G., AuthorZoubian, J., AuthorMedinaceli, E., AuthorMei, S., AuthorRosset, C., AuthorSureau, F., AuthorVassallo, T., AuthorZacchei, A., AuthorAndreon, S., AuthorBalaguera-Antolínez, A., AuthorBaldi, M., AuthorBardelli, S., AuthorBiviano, A., AuthorBorgani, S., AuthorBozzo, E., AuthorBurigana, C., AuthorCabanac, R., AuthorCappi, A., AuthorCarvalho, C. S., AuthorCastignani, G., AuthorColodro-Conde, C., AuthorCoupon, J., AuthorCourtois, H. M., AuthorCuby, J., Authorde la Torre, S., AuthorFerdinando, D. Di, AuthorDole, H., AuthorFarina, M., AuthorFerreira, P. G., AuthorFlose-Reimberg, P., AuthorGaleotta, S., AuthorGozaliasl, G., AuthorGraciá-Carpio, J.2, Author              Keihanen, E., AuthorKirkpatrick, C. C., AuthorLindholm, V., AuthorMainetti, G., AuthorMaino, D., AuthorMartinet, N., AuthorMaturi, M., AuthorMetcalf, R. B., AuthorMorgante, G., AuthorNeissner, C., AuthorNightingale, J., AuthorNucita, A. A., AuthorPotter, D., AuthorRiccio, G., AuthorRomelli, E., AuthorSchirmer, M., AuthorSchultheis, M., AuthorScottez, V., AuthorTeyssier, R., AuthorTramacere, A., AuthorValiviita, J., AuthorViel, M., AuthorWhittaker, L., AuthorZucca, E., Author more..
Affiliations:
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              

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 Abstract: The combination and cross-correlation of the upcoming Euclid data with cosmic microwave background (CMB) measurements is a source of great expectation since it will provide the largest lever arm of epochs, ranging from recombination to structure formation across the entire past light cone. In this work, we present forecasts for the joint analysis of Euclid and CMB data on the cosmological parameters of the standard cosmological model and some of its extensions. This work expands and complements the recently published forecasts based on Euclid-specific probes, namely galaxy clustering, weak lensing, and their cross-correlation. With some assumptions on the specifications of current and future CMB experiments, the predicted constraints are obtained from both a standard Fisher formalism and a posterior-fitting approach based on actual CMB data. Compared to a Euclid-only analysis, the addition of CMB data leads to a substantial impact on constraints for all cosmological parameters of the standard Λ-cold-dark-matter model, with improvements reaching up to a factor of ten. For the parameters of extended models, which include a redshift-dependent dark energy equation of state, non-zero curvature, and a phenomenological modification of gravity, improvements can be of the order of two to three, reaching higher than ten in some cases. The results highlight the crucial importance for cosmological constraints of the combination and cross-correlation of Euclid probes with CMB data.

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Language(s): eng - English
 Dates: 2022-01-18
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1051/0004-6361/202141556
 Degree: -

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Title: Astronomy and Astrophysics
  Other : Astron. Astrophys.
Source Genre: Journal
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Publ. Info: France : EDP Sciences S A
Pages: - Volume / Issue: 657 Sequence Number: A91 Start / End Page: - Identifier: ISSN: 1432-0746
CoNE: https://pure.mpg.de/cone/journals/resource/954922828219_1