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.; Sánchez, 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.; Da Silva, A.; de la Torre, S.; Di Ferdinando, D.; 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.; Verdoes Kleijn, G.A.; Viel, M.; Wang, Y.; Zacchei, A.; Zoubian, J.; Zucca, E.

doi:10.1051/0004-6361/202038071

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.; Sánchez, 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.; Da Silva, A.; de la Torre, S.; Di Ferdinando, D.; Dubath, F.; Ducret, F.; Duncan, C.A.J.; Dupac, X.; Dusini, S.; Fabbian, G.; Fabricius, M.; Farrens, S.; Fosalba, P.; Fotopoulou, S.; Fourmanoi...

Authors

A. Blanchard

S. Camera

C. Carbone

V.F. Cardone

S. Casas

S. Clesse

S. Ilić

M. Kilbinger

T. Kitching

M. Kunz

F. Lacasa

E. Linder

E. Majerotto

K. Markovič

M. Martinelli

V. Pettorino

A. Pourtsidou

Z. Sakr

A.G. Sánchez

D. Sapone

I. Tutusaus

S. Yahia-Cherif

V. Yankelevich

S. Andreon

H. Aussel

A. Balaguera-Antolínez

M. Baldi

S. Bardelli

R. Bender

A. Biviano

D. Bonino

A. Boucaud

E. Bozzo

E. Branchini

S. Brau-Nogue

M. Brescia

J. Brinchmann

C. Burigana

R. Cabanac

V. Capobianco

A. Cappi

J. Carretero

C.S. Carvalho

R. Casas

F.J. Castander

M. Castellano

S. Cavuoti

A. Cimatti

R. Cledassou

C. Colodro-Conde

G. Congedo

C.J. Conselice

L. Conversi

Y. Copin

L. Corcione

J. Coupon

H.M. Courtois

M. Cropper

A. Da Silva

S. de la Torre

D. Di Ferdinando

F. Dubath

F. Ducret

C.A.J. Duncan

X. Dupac

S. Dusini

G. Fabbian

M. Fabricius

S. Farrens

P. Fosalba

S. Fotopoulou

N. Fourmanoit

M. Frailis

E. Franceschi

P. Franzetti

M. Fumana

S. Galeotta

W. Gillard

B. Gillis

C. Giocoli

P. Gómez-Alvarez

J. Graciá-Carpio

F. Grupp

L. Guzzo

H. Hoekstra

F. Hormuth

H. Israel

K. Jahnke

E. Keihanen

S. Kermiche

C.C. Kirkpatrick

R. Kohley

B. Kubik

H. Kurki-Suonio

S. Ligori

P.B. Lilje

I. Lloro

D. Maino

E. Maiorano

O. Marggraf

N. Martinet

F. Marulli

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

E. Medinaceli

S. Mei

Y. Mellier

B. Metcalf

J.J. Metge

G. Meylan

M. Moresco

L. Moscardini

E. Munari

R.C. Nichol

S. Niemi

A.A. Nucita

C. Padilla

S. Paltani

F. Pasian

W.J. Percival

S. Pires

G. Polenta

M. Poncet

L. Pozzetti

G.D. Racca

F. Raison

A. Renzi

J. Rhodes

E. Romelli

M. Roncarelli

E. Rossetti

R. Saglia

P. Schneider

V. Scottez

A. Secroun

G. Sirri

L. Stanco

J.-L. Starck

F. Sureau

P. Tallada-Crespí

D. Tavagnacco

A.N. Taylor

M. Tenti

I. Tereno

R. Toledo-Moreo

F. Torradeflot

L. Valenziano

T. Vassallo

G.A. Verdoes Kleijn

M. Viel

Y. Wang

A. Zacchei

J. Zoubian

E. Zucca

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.

Citation

Blanchard, A., Camera, S., Carbone, C., Cardone, V., 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., Sánchez, A., Sapone, D., …Zucca, E. (2020). Euclid preparation: VII. Forecast validation for Euclid cosmological probes. Astronomy & Astrophysics, 642, Article A191. https://doi.org/10.1051/0004-6361/202038071

Journal Article Type	Article
Acceptance Date	Jul 15, 2020
Online Publication Date	Oct 20, 2020
Publication Date	2020-10
Deposit Date	Nov 11, 2020
Publicly Available Date	Nov 11, 2020
Journal	Astronomy and astrophysics.
Print ISSN	0004-6361
Electronic ISSN	1432-0746
Publisher	EDP Sciences
Peer Reviewed	Peer Reviewed
Volume	642
Article Number	A191
DOI	https://doi.org/10.1051/0004-6361/202038071
Public URL	https://durham-repository.worktribe.com/output/1286522

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Copyright Statement
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., Sánchez, 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., Da Silva, A., de la Torre, S., Di Ferdinando, D., 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., Verdoes Kleijn, G. A., Viel, M., Wang, Y., Zacchei, A., Zoubian, J. & Zucca, E. (2020). Euclid preparation: VII. Forecast validation for Euclid cosmological probes. Astronomy & Astrophysics 642: A191 reproduced with permission, © ESO.