Euclid preparation: VII. Forecast validation for Euclid cosmological probes

Blanchard, A.; Camera, S.; Carbone, C.; Cardone, V. F.; Casas, S.; Clesse, S.; Ilić, S.; Kilbinger, M.; Kitching, T.; Kunz, M.; Lacasa, F.; Linder, E.; Majerotto, E.; Markovič, K.; Martinelli, M.; Pettorino, V.; Pourtsidou, A.; Sakr, Z.; Sanchez, A. G.; Sapone, D.; Tutusaus, I.; Yahia-Cherif, S.; Yankelevich, V.; Andreon, S.; Aussel, H.; Balaguera-Antolínez, A.; Baldi, M.; Bardelli, S.; Bender, R.; Biviano, A.; Bonino, D.; Boucaud, A.; Bozzo, E.; Branchini, E.; Brau-Nogue, S.; Brescia, M.; Brinchmann, J.; Burigana, C.; Cabanac, R.; Capobianco, V.; Cappi, A.; Carretero, J.; Carvalho, C. S.; Casas, R.; Castander, F. J.; Castellano, M.; Cavuoti, S.; Cimatti, A.; Cledassou, R.; Colodro-Conde, C.; Congedo, G.; Conselice, C. J.; Conversi, L.; Copin, Y.; Corcione, L.; Coupon, J.; Courtois, H. M.; Cropper, M.; Silva, A. Da; de la Torre, S.; Ferdinando, D. Di; Dubath, F.; Ducret, F.; Duncan, C. A. J.; Dupac, X.; Dusini, S.; Fabbian, G.; Fabricius, M.; Farrens, S.; Fosalba, P.; Fotopoulou, S.; Fourmanoit, N.; Frailis, M.; Franceschi, E.; Franzetti, P.; Fumana, M.; Galeotta, S.; Gillard, W.; Gillis, B.; Giocoli, C.; Gómez-Alvarez, P.; Graciá-Carpio, J.; Grupp, F.; Guzzo, L.; Hoekstra, H.; Hormuth, F.; Israel, H.; Jahnke, K.; Keihanen, E.; Kermiche, S.; Kirkpatrick, C. C.; Kohley, R.; Kubik, B.; Kurki-Suonio, H.; Ligori, S.; Lilje, P. B.; Lloro, I.; Maino, D.; Maiorano, E.; Marggraf, O.; Martinet, N.; Marulli, F.; Massey, R.; Medinaceli, E.; Mei, S.; Mellier, Y.; Metcalf, B.; Metge, J. J.; Meylan, G.; Moresco, M.; Moscardini, L.; Munari, E.; Nichol, R. C.; Niemi, S.; Nucita, A. A.; Padilla, C.; Paltani, S.; Pasian, F.; Percival, W. J.; Pires, S.; Polenta, G.; Poncet, M.; Pozzetti, L.; Racca, G. D.; Raison, F.; Renzi, A.; Rhodes, J.; Romelli, E.; Roncarelli, M.; Rossetti, E.; Saglia, R.; Schneider, P.; Scottez, V.; Secroun, A.; Sirri, G.; Stanco, L.; Starck, J.-L.; Sureau, F.; Tallada-Crespí, P.; Tavagnacco, D.; Taylor, A. N.; Tenti, M.; Tereno, I.; Toledo-Moreo, R.; Torradeflot, F.; Valenziano, L.; Vassallo, T.; Kleijn, G. A. Verdoes; Viel, M.; Wang, Y.; Zacchei, A.; Zoubian, J.; Zucca, E.

doi:10.1051/0004-6361/202038071

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Euclid preparation: VII. Forecast validation for Euclid cosmological probes

MPS-Authors

/persons/resource/persons18611

Sanchez, A. G.
Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society;

/persons/resource/persons4759

Bender, R.
Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society;

/persons/resource/persons4654

Fabricius, M.
Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society;

/persons/resource/persons22336

Graciá-Carpio, J.
Infrared and Submillimeter Astronomy, MPI for Extraterrestrial Physics, Max Planck Society;

/persons/resource/persons23147

Grupp, F.
Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society;

/persons/resource/persons202823

Raison, F.
Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society;

/persons/resource/persons18398

Saglia, R.
Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Blanchard, A., Camera, S., Carbone, C., Cardone, V. F., Casas, S., Clesse, S., et al. (2020). Euclid preparation: VII. Forecast validation for Euclid cosmological probes. Astronomy and Astrophysics, 642: A191. doi:10.1051/0004-6361/202038071.

Cite as: https://hdl.handle.net/21.11116/0000-0007-ED6D-5

Abstract

Aims. The Euclid space telescope will measure the shapes and redshifts of galaxies to reconstruct the expansion history of the Universe and the growth of cosmic structures. The estimation of the expected performance of the experiment, in terms of predicted constraints on cosmological parameters, has so far relied on various individual methodologies and numerical implementations, which were developed for different observational probes and for the combination thereof. In this paper we present validated forecasts, which combine both theoretical and observational ingredients for different cosmological probes. This work is presented to provide the community with reliable numerical codes and methods for Euclid cosmological forecasts.

Methods. We describe in detail the methods adopted for Fisher matrix forecasts, which were applied to galaxy clustering, weak lensing, and the combination thereof. We estimated the required accuracy for Euclid forecasts and outline a methodology for their development. We then compare and improve different numerical implementations, reaching uncertainties on the errors of cosmological parameters that are less than the required precision in all cases. Furthermore, we provide details on the validated implementations, some of which are made publicly available, in different programming languages, together with a reference training-set of input and output matrices for a set of specific models. These can be used by the reader to validate their own implementations if required.

Results. We present new cosmological forecasts for Euclid. We find that results depend on the specific cosmological model and remaining freedom in each setting, for example flat or non-flat spatial cosmologies, or different cuts at non-linear scales. The numerical implementations are now reliable for these settings. We present the results for an optimistic and a pessimistic choice for these types of settings. We demonstrate that the impact of cross-correlations is particularly relevant for models beyond a cosmological constant and may allow us to increase the dark energy figure of merit by at least a factor of three.