Euclid preparation: VII. Forecast validation for Euclid cosmological probes

Euclid Collaboration; A. Blanchard; S. Camera; C. Carbone; V. F. Cardone; S. Casas; 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; R. Massey; 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

Euclid preparation: VII. Forecast validation for Euclid cosmological probes

Euclid Collaboration, A. Blanchard, S. Camera, C. Carbone, V. F. Cardone, S. Casas, 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. SaponeI. 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, R. Massey, 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

School of Physics

Research output: Working paper

Abstract

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. Estimation of the expected performance of the experiment, in terms of predicted constraints on cosmological parameters, has so far relied on different methodologies and numerical implementations, developed for different observational probes and for their combination. In this paper we present validated forecasts, that combine both theoretical and observational expertise for different cosmological probes. This is presented to provide the community with reliable numerical codes and methods for Euclid cosmological forecasts. We describe in detail the methodology adopted for Fisher matrix forecasts, applied to galaxy clustering, weak lensing and their combination. We estimate 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 that can be used by the reader to validate their own codes if required. We present new cosmological forecasts for Euclid. We find that results depend on the specific cosmological model and remaining freedom in each setup, i.e. flat or non-flat spatial cosmologies, or different cuts at nonlinear scales. The validated numerical implementations can now be reliably used for any setup. We present results for an optimistic and a pessimistic choice of such 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.

...

Original language	English
Publication status	Published - Oct 2019

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@techreport{a0249693899a47369e2133db139542af,

title = "Euclid preparation: VII. Forecast validation for Euclid cosmological probes",

abstract = "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. Estimation of the expected performance of the experiment, in terms of predicted constraints on cosmological parameters, has so far relied on different methodologies and numerical implementations, developed for different observational probes and for their combination. In this paper we present validated forecasts, that combine both theoretical and observational expertise for different cosmological probes. This is presented to provide the community with reliable numerical codes and methods for Euclid cosmological forecasts. We describe in detail the methodology adopted for Fisher matrix forecasts, applied to galaxy clustering, weak lensing and their combination. We estimate 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 that can be used by the reader to validate their own codes if required. We present new cosmological forecasts for Euclid. We find that results depend on the specific cosmological model and remaining freedom in each setup, i.e. flat or non-flat spatial cosmologies, or different cuts at nonlinear scales. The validated numerical implementations can now be reliably used for any setup. We present results for an optimistic and a pessimistic choice of such 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. ...",

author = "Euclid Collaboration and A. Blanchard and S. Camera and C. Carbone and Cardone, {V. F.} and S. Casas and S. Ili{\'c} and M. Kilbinger and T. Kitching and M. Kunz and F. Lacasa and E. Linder and E. Majerotto and K. Markovi{\v c} and M. Martinelli and V. Pettorino and A. Pourtsidou and Z. Sakr and S{\'a}nchez, {A. G.} and D. Sapone and I. Tutusaus and S. Yahia-Cherif and V. Yankelevich and S. Andreon and H. Aussel and A. Balaguera-Antol{\'i}nez and M. Baldi and S. Bardelli and R. Bender and A. Biviano and D. Bonino and A. Boucaud and E. Bozzo and E. Branchini and S. Brau-Nogue and M. Brescia and J. Brinchmann and C. Burigana and R. Cabanac and V. Capobianco and A. Cappi and J. Carretero and Carvalho, {C. S.} and R. Casas and Castander, {F. J.} and M. Castellano and S. Cavuoti and A. Cimatti and R. Cledassou and C. Colodro-Conde and G. Congedo and Conselice, {C. J.} and L. Conversi and Y. Copin and L. Corcione and J. Coupon and Courtois, {H. M.} and M. Cropper and {Da Silva}, A. and {de la Torre}, S. and {Di Ferdinando}, D. and F. Dubath and F. Ducret and Duncan, {C. A. J.} and X. Dupac and S. Dusini and G. Fabbian and M. Fabricius and S. Farrens and P. Fosalba and S. Fotopoulou and N. Fourmanoit and M. Frailis and E. Franceschi and P. Franzetti and M. Fumana and S. Galeotta and W. Gillard and B. Gillis and C. Giocoli and P. G{\'o}mez-Alvarez and J. Graci{\'a}-Carpio and F. Grupp and L. Guzzo and H. Hoekstra and F. Hormuth and H. Israel and K. Jahnke and E. Keihanen and S. Kermiche and Kirkpatrick, {C. C.} and R. Kohley and B. Kubik and H. Kurki-Suonio and S. Ligori and Lilje, {P. B.} and I. Lloro and D. Maino and E. Maiorano and O. Marggraf and N. Martinet and F. Marulli and R. Massey and E. Medinaceli and S. Mei and Y. Mellier and B. Metcalf and Metge, {J. J.} and G. Meylan and M. Moresco and L. Moscardini and E. Munari and Nichol, {R. C.} and S. Niemi and Nucita, {A. A.} and C. Padilla and S. Paltani and F. Pasian and Percival, {W. J.} and S. Pires and G. Polenta and M. Poncet and L. Pozzetti and Racca, {G. D.} and F. Raison and A. Renzi and J. Rhodes and E. Romelli and M. Roncarelli and E. Rossetti and R. Saglia and P. Schneider and V. Scottez and A. Secroun and G. Sirri and L. Stanco and Starck, {J. -L.} and F. Sureau and P. Tallada-Cresp{\'i} and D. Tavagnacco and Taylor, {A. N.} and M. Tenti and I. Tereno and R. Toledo-Moreo and F. Torradeflot and L. Valenziano and T. Vassallo and {Verdoes Kleijn}, {G. A.} and M. Viel and Y. Wang and A. Zacchei and J. Zoubian and E. Zucca",

year = "2019",

month = oct,

language = "English",

type = "WorkingPaper",

}

Collaboration, E, Blanchard, A, Camera, S, Carbone, C, Cardone, VF, Casas, 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, AG, 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, CS, Casas, R, Castander, FJ, Castellano, M, Cavuoti, S, Cimatti, A, Cledassou, R, Colodro-Conde, C, Congedo, G, Conselice, CJ, Conversi, L, Copin, Y, Corcione, L, Coupon, J, Courtois, HM, Cropper, M, Da Silva, A, de la Torre, S, Di Ferdinando, D, Dubath, F, Ducret, F, Duncan, CAJ, 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, CC, Kohley, R, Kubik, B, Kurki-Suonio, H, Ligori, S, Lilje, PB, Lloro, I, Maino, D, Maiorano, E, Marggraf, O, Martinet, N, Marulli, F, Massey, R, Medinaceli, E, Mei, S, Mellier, Y, Metcalf, B, Metge, JJ, Meylan, G, Moresco, M, Moscardini, L, Munari, E, Nichol, RC, Niemi, S, Nucita, AA, Padilla, C, Paltani, S, Pasian, F, Percival, WJ, Pires, S, Polenta, G, Poncet, M, Pozzetti, L, Racca, GD, 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, AN, Tenti, M, Tereno, I, Toledo-Moreo, R, Torradeflot, F, Valenziano, L, Vassallo, T, Verdoes Kleijn, GA, Viel, M, Wang, Y, Zacchei, A, Zoubian, J & Zucca, E 2019 'Euclid preparation: VII. Forecast validation for Euclid cosmological probes'.

TY - UNPB

T1 - Euclid preparation: VII. Forecast validation for Euclid cosmological probes

AU - Collaboration, Euclid

AU - Blanchard, A.

AU - Camera, S.

AU - Carbone, C.

AU - Cardone, V. F.

AU - Casas, S.

AU - Ilić, S.

AU - Kilbinger, M.

AU - Kitching, T.

AU - Kunz, M.

AU - Lacasa, F.

AU - Linder, E.

AU - Majerotto, E.

AU - Markovič, K.

AU - Martinelli, M.

AU - Pettorino, V.

AU - Pourtsidou, A.

AU - Sakr, Z.

AU - Sánchez, A. G.

AU - Sapone, D.

AU - Tutusaus, I.

AU - Yahia-Cherif, S.

AU - Yankelevich, V.

AU - Andreon, S.

AU - Aussel, H.

AU - Balaguera-Antolínez, A.

AU - Baldi, M.

AU - Bardelli, S.

AU - Bender, R.

AU - Biviano, A.

AU - Bonino, D.

AU - Boucaud, A.

AU - Bozzo, E.

AU - Branchini, E.

AU - Brau-Nogue, S.

AU - Brescia, M.

AU - Brinchmann, J.

AU - Burigana, C.

AU - Cabanac, R.

AU - Capobianco, V.

AU - Cappi, A.

AU - Carretero, J.

AU - Carvalho, C. S.

AU - Casas, R.

AU - Castander, F. J.

AU - Castellano, M.

AU - Cavuoti, S.

AU - Cimatti, A.

AU - Cledassou, R.

AU - Colodro-Conde, C.

AU - Congedo, G.

AU - Conselice, C. J.

AU - Conversi, L.

AU - Copin, Y.

AU - Corcione, L.

AU - Coupon, J.

AU - Courtois, H. M.

AU - Cropper, M.

AU - Da Silva, A.

AU - de la Torre, S.

AU - Di Ferdinando, D.

AU - Dubath, F.

AU - Ducret, F.

AU - Duncan, C. A. J.

AU - Dupac, X.

AU - Dusini, S.

AU - Fabbian, G.

AU - Fabricius, M.

AU - Farrens, S.

AU - Fosalba, P.

AU - Fotopoulou, S.

AU - Fourmanoit, N.

AU - Frailis, M.

AU - Franceschi, E.

AU - Franzetti, P.

AU - Fumana, M.

AU - Galeotta, S.

AU - Gillard, W.

AU - Gillis, B.

AU - Giocoli, C.

AU - Gómez-Alvarez, P.

AU - Graciá-Carpio, J.

AU - Grupp, F.

AU - Guzzo, L.

AU - Hoekstra, H.

AU - Hormuth, F.

AU - Israel, H.

AU - Jahnke, K.

AU - Keihanen, E.

AU - Kermiche, S.

AU - Kirkpatrick, C. C.

AU - Kohley, R.

AU - Kubik, B.

AU - Kurki-Suonio, H.

AU - Ligori, S.

AU - Lilje, P. B.

AU - Lloro, I.

AU - Maino, D.

AU - Maiorano, E.

AU - Marggraf, O.

AU - Martinet, N.

AU - Marulli, F.

AU - Massey, R.

AU - Medinaceli, E.

AU - Mei, S.

AU - Mellier, Y.

AU - Metcalf, B.

AU - Metge, J. J.

AU - Meylan, G.

AU - Moresco, M.

AU - Moscardini, L.

AU - Munari, E.

AU - Nichol, R. C.

AU - Niemi, S.

AU - Nucita, A. A.

AU - Padilla, C.

AU - Paltani, S.

AU - Pasian, F.

AU - Percival, W. J.

AU - Pires, S.

AU - Polenta, G.

AU - Poncet, M.

AU - Pozzetti, L.

AU - Racca, G. D.

AU - Raison, F.

AU - Renzi, A.

AU - Rhodes, J.

AU - Romelli, E.

AU - Roncarelli, M.

AU - Rossetti, E.

AU - Saglia, R.

AU - Schneider, P.

AU - Scottez, V.

AU - Secroun, A.

AU - Sirri, G.

AU - Stanco, L.

AU - Starck, J. -L.

AU - Sureau, F.

AU - Tallada-Crespí, P.

AU - Tavagnacco, D.

AU - Taylor, A. N.

AU - Tenti, M.

AU - Tereno, I.

AU - Toledo-Moreo, R.

AU - Torradeflot, F.

AU - Valenziano, L.

AU - Vassallo, T.

AU - Verdoes Kleijn, G. A.

AU - Viel, M.

AU - Wang, Y.

AU - Zacchei, A.

AU - Zoubian, J.

AU - Zucca, E.

PY - 2019/10

Y1 - 2019/10

N2 - 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. Estimation of the expected performance of the experiment, in terms of predicted constraints on cosmological parameters, has so far relied on different methodologies and numerical implementations, developed for different observational probes and for their combination. In this paper we present validated forecasts, that combine both theoretical and observational expertise for different cosmological probes. This is presented to provide the community with reliable numerical codes and methods for Euclid cosmological forecasts. We describe in detail the methodology adopted for Fisher matrix forecasts, applied to galaxy clustering, weak lensing and their combination. We estimate 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 that can be used by the reader to validate their own codes if required. We present new cosmological forecasts for Euclid. We find that results depend on the specific cosmological model and remaining freedom in each setup, i.e. flat or non-flat spatial cosmologies, or different cuts at nonlinear scales. The validated numerical implementations can now be reliably used for any setup. We present results for an optimistic and a pessimistic choice of such 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. ...

AB - 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. Estimation of the expected performance of the experiment, in terms of predicted constraints on cosmological parameters, has so far relied on different methodologies and numerical implementations, developed for different observational probes and for their combination. In this paper we present validated forecasts, that combine both theoretical and observational expertise for different cosmological probes. This is presented to provide the community with reliable numerical codes and methods for Euclid cosmological forecasts. We describe in detail the methodology adopted for Fisher matrix forecasts, applied to galaxy clustering, weak lensing and their combination. We estimate 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 that can be used by the reader to validate their own codes if required. We present new cosmological forecasts for Euclid. We find that results depend on the specific cosmological model and remaining freedom in each setup, i.e. flat or non-flat spatial cosmologies, or different cuts at nonlinear scales. The validated numerical implementations can now be reliably used for any setup. We present results for an optimistic and a pessimistic choice of such 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. ...

M3 - Working paper

BT - Euclid preparation: VII. Forecast validation for Euclid cosmological probes

ER -

Euclid preparation: VII. Forecast validation for Euclid cosmological probes

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